{"type": "FeatureCollection", "features": [{"id": "11336/226991", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-27T16:29:16Z", "type": "Journal Article", "created": "2023-12-13", "title": "Unraveling the genome of Bacillus velezensis MEP218, a strain producing fengycin homologs with broad antibacterial activity: comprehensive comparative genome analysis", "description": "Abstract

Bacillus sp. MEP218, a soil bacterium with high potential as a source of bioactive molecules, produces mostly C16\uffe2\uff80\uff93C17 fengycin and other cyclic lipopeptides (CLP) when growing under previously optimized culture conditions. This work addressed the elucidation of the genome sequence of MEP218 and its taxonomic classification. The genome comprises 3,944,892\uffc2\uffa0bp, with a total of 3474 coding sequences and a G\uffe2\uff80\uff89+\uffe2\uff80\uff89C content of 46.59%. Our phylogenetic analysis to determine the taxonomic position demonstrated that the assignment of the MEP218 strain to Bacillus velezensis species provides insights into its evolutionary context and potential functional attributes. The in silico genome analysis revealed eleven gene clusters involved in the synthesis of secondary metabolites, including non-ribosomal CLP (fengycins and surfactin), polyketides, terpenes, and bacteriocins. Furthermore, genes encoding phytase, involved in the release of phytic phosphate for plant and animal nutrition, or other enzymes such as cellulase, xylanase, and alpha 1\uffe2\uff80\uff934 glucanase were detected. In vitro antagonistic assays against Salmonella typhimurium, Acinetobacter baumanii, Escherichia coli, among others, demonstrated a broad spectrum of C16\uffe2\uff80\uff93C17 fengycin produced by MEP218. MEP218 genome sequence analysis expanded our understanding of the diversity and genetic relationships within the Bacillus genus and updated the Bacillus databases with its unique trait to produce antibacterial fengycins and its potential as a resource of biotechnologically useful enzymes.

This study represents a comprehensive community-wide genome-centered metagenome analysis of biological soil crust (BSC) communities in arid environments, providing insights into the distribution of genes encoding different energy generation mechanisms, as well as survival strategies, among populations in an arid soil ecosystem. It reveals the metabolic potential of several uncultured and previously unsequenced microbial genera, families, and orders, as well as differences in the metabolic potential between the most abundant BSC populations and their cultured relatives, highlighting once more the danger of inferring function on the basis of taxonomy.

", "keywords": ["0301 basic medicine", "BACTERIAL", "dormancy", "Survival", "RUBROBACTER-RADIOTOLERANS", "DIVERSITY", "Biological soil crust", "survival", "Microbiology", "7. Clean energy", "biological soil crust", "03 medical and health sciences", "mixotrophy", "Dormancy", "Mixotrophy", "SPORULATION", "COLORADO PLATEAU", "2. Zero hunger", "106022 Mikrobiologie", "metagenomics", "0303 health sciences", "ARTHROBACTER-RADIOTOLERANS", "15. Life on land", "XYLANOPHILUS", "QR1-502", "SP NOV.", "SURVIVAL", "106022 Microbiology", "RADIATION", "Metagenomics", "MEMBERS", "Research Article"]}, "links": [{"href": "https://journals.asm.org/doi/pdf/10.1128/mSystems.00786-20"}, {"href": "https://doi.org/11353/10.1603944"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/mSystems", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "11353/10.1603944", "name": "item", "description": "11353/10.1603944", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/11353/10.1603944"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-02-23T00:00:00Z"}}, {"id": "1871.1/93d3ab9b-8521-4f16-ba11-87605d2c7bda", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-27T16:29:35Z", "type": "Journal Article", "created": "2019-09-19", "title": "Natural Microbial Communities Can Be Manipulated by Artificially Constructed Biofilms", "description": "Abstract

Biofouling proceeds in successive steps where the primary colonizers affect the phylogenetic and functional structure of a future microbial consortium. Using microbiologically influenced corrosion (MIC) as a study case, a novel approach for material surface protection is described, which does not prevent biofouling, but rather shapes the process of natural biofilm development to exclude MIC\uffe2\uff80\uff90related microorganisms. This approach interferes with the early steps of natural biofilm formation affecting how the community is finally developed. It is based on a multilayer artificial biofilm, composed of electrostatically modified bacterial cells, producing antimicrobial compounds, extracellular antimicrobial polyelectrolyte matrix, and a water\uffe2\uff80\uff90proof rubber elastomer barrier. The artificial biofilm is constructed layer\uffe2\uff80\uff90by\uffe2\uff80\uff90layer (LBL) by manipulating the electrostatic interactions between microbial cells and material surfaces. Field testing on standard steel coupons exposed in the sea for more than 30 days followed by laboratory analyses using molecular\uffe2\uff80\uff90biology tools demonstrate that the preapplied artificial biofilm affects the phylogenetic structure of the developing natural biofilm, reducing phylogenetic diversity and excluding MIC\uffe2\uff80\uff90related bacteria. This sustainable solution for material protection showcases the usefulness of artificially guiding microbial evolutionary processes via the electrostatic modification and controlled delivery of bacterial cells and extracellular matrix to the exposed material surfaces.Disruption of the microbial community in the respiratory tract due to infections, like influenza, could impact transmission of bacterial pathogens. Using samples from a household study, we determined whether metagenomic-type analyses of the microbiome provide the resolution necessary to track transmission of airway bacteria. Microbiome studies have shown that the microbial community across various body sites tends to be more similar between individuals who cohabit in the same household than between individuals from different households. We tested whether there was increased sharing of bacteria from the airways within households with influenza infections as compared to control households with no influenza.

Results

We obtained 221 respiratory samples that were collected from 54 individuals at 4 to 5 time points across 10 households, with and without influenza infection, in Managua, Nicaragua. From these samples, we generated metagenomic (whole genome shotgun sequencing) datasets to profile microbial taxonomy. Overall, specific bacteria and phages were differentially abundant between influenza positive households and control (no influenza infection) households, with bacteria like Rothia, and phages like Staphylococcus P68virus that were significantly enriched in the influenza-positive households. We identified CRISPR spacers detected in the metagenomic sequence reads and used these to track bacteria transmission within and across households. We observed a clear sharing of bacterial commensals and pathobionts, such as Rothia, Neisseria, and Prevotella, within and between households. However, due to the relatively small number of households in our study, we could not determine if there was a correlation between increased bacterial transmission and influenza infection.

Conclusion

We observed that airway microbial composition differences across households were associated with what appeared to be different susceptibility to influenza infection. We also demonstrate that CRISPR spacers from the whole microbial community can be used as markers to study bacterial transmission between individuals. Although additional evidence is needed to study transmission of specific bacterial strains, we observed sharing of respiratory commensals and pathobionts within and across households.

", "keywords": ["Bacteria", "Research", "Microbiota", "QR100-130", "3. Good health", "Microbial ecology", "Influenza", " Human", "Humans", "Metagenome", "Clustered Regularly Interspaced Short Palindromic Repeats", "Metagenomics", "Microbiome", "Influenza virus", "Micrococcaceae"]}, "links": [{"href": "https://doi.org/PMC10276449"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Microbiome", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "PMC10276449", "name": "item", "description": "PMC10276449", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/PMC10276449"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-06-17T00:00:00Z"}}, {"id": "20.500.14243/461059", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-27T16:29:55Z", "type": "Journal Article", "created": "2023-02-22", "title": "Extracellular DNA includes an important fraction of high-risk antibiotic resistance genes in treated wastewaters", "description": "Wastewater treatment plants are among the main hotspots for the release of antibiotic resistance genes (ARGs) into the environment. ARGs in treated wastewater can be found in the intracellular DNA (iDNA) and in the extracellular DNA (eDNA). In this study, we investigated the fate and the distribution (either in eDNA or in iDNA) of ARGs in the treated wastewaters pre and post-disinfection by shotgun metagenomics. The richness of the intracellular resistome was found to be higher than the extracellular one. However, the latter included different high risk ARGs. About 11% of the recovered metagenome assembled genomes (MAGs) from the extracted DNA was positive for at least one ARG and, among them, several were positive for more ARGs. The high-risk ARG bacA was the most frequently detected gene among the MAGs. The disinfection demonstrated to be an important driver of the composition of the antibiotic resistomes. Our results demonstrated that eDNA represents an important fraction of the overall ARGs, including a number of high-risk ARGs, which reach the environment with treated wastewater effluents. The studied disinfections only marginally affect the whole antibiotic resistome but cause important shifts from intracellular to extracellular DNA, potentially threating human health.", "keywords": ["0301 basic medicine", "0303 health sciences", "Drug Resistance", " Microbial", "DNA", "Wastewater", "Antimicrobial resistance", "6. Clean water", "MAG", "Anti-Bacterial Agents", "Disinfection", "03 medical and health sciences", "13. Climate action", "Extracellular DNA", "Genes", " Bacterial", "Humans", "Metagenomics"]}, "links": [{"href": "https://doi.org/20.500.14243/461059"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Pollution", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "20.500.14243/461059", "name": "item", "description": "20.500.14243/461059", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/20.500.14243/461059"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-04-01T00:00:00Z"}}, {"id": "21.11116/0000-000D-E197-A", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-27T16:30:01Z", "type": "Journal Article", "created": "2023-09-27", "title": "Uncovering Microbiome Adaptations in a Full-Scale Biogas Plant: Insights from MAG-Centric Metagenomics and Metaproteomics", "description": "

The current focus on renewable energy in global policy highlights the importance of methane production from biomass through anaerobic digestion (AD). To improve biomass digestion while ensuring overall process stability, microbiome-based management strategies become more important. In this study, metagenomes and metaproteomes were used for metagenomically assembled genome (MAG)-centric analyses to investigate a full-scale biogas plant consisting of three differentially operated digesters. Microbial communities were analyzed regarding their taxonomic composition, functional potential, as well as functions expressed on the proteome level. Different abundances of genes and enzymes related to the biogas process could be mostly attributed to different process parameters. Individual MAGs exhibiting different abundances in the digesters were studied in detail, and their roles in the hydrolysis, acidogenesis and acetogenesis steps of anaerobic digestion could be assigned. Methanoculleus thermohydrogenotrophicum was an active hydrogenotrophic methanogen in all three digesters, whereas Methanothermobacter wolfeii was more prevalent at higher process temperatures. Further analysis focused on MAGs, which were abundant in all digesters, indicating their potential to ensure biogas process stability. The most prevalent MAG belonged to the class Limnochordia; this MAG was ubiquitous in all three digesters and exhibited activity in numerous pathways related to different steps of AD.

", "keywords": ["anaerobic digestion", "biogas process chain", "metagenome analyses", "13. Climate action", "QH301-705.5", "metagenomic binning", "biogas microbiome", "metaproteome analyses", "15. Life on land", "Biology (General)", "7. Clean energy", "Article", "660.6"]}, "links": [{"href": "https://www.mdpi.com/2076-2607/11/10/2412/pdf"}, {"href": "https://doi.org/21.11116/0000-000D-E197-A"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Microorganisms", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "21.11116/0000-000D-E197-A", "name": "item", "description": "21.11116/0000-000D-E197-A", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/21.11116/0000-000D-E197-A"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-09-27T00:00:00Z"}}, {"id": "2164/15058", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-27T16:30:05Z", "type": "Journal Article", "created": "2017-03-19", "title": "Bacterial physiological adaptations to contrasting edaphic conditions identified using landscape scale metagenomics", "description": "Abstract

Environmental factors relating to soil pH are widely known to be important in structuring soil bacterial communities, yet the relationship between taxonomic community composition and functional diversity remains to be determined. Here, we analyze geographically distributed soils spanning a wide pH gradient and assess the functional gene capacity within those communities using whole genome metagenomics. Low pH soils consistently had fewer taxa (lower alpha and gamma diversity), but only marginal reductions in functional alpha diversity and equivalent functional gamma diversity. However, coherent changes in the relative abundances of annotated genes between pH classes were identified; with functional profiles clustering according to pH independent of geography. Differences in gene abundances were found to reflect survival and nutrient acquisition strategies, with organic-rich acidic soils harboring a greater abundance of cation efflux pumps, C and N direct fixation systems and fermentation pathways indicative of anaerobiosis. Conversely, high pH soils possessed more direct transporter-mediated mechanisms for organic C and N substrate acquisition. These findings show that bacterial functional versatility may not be constrained by taxonomy, and we further identify the range of physiological adaptations required to exist in soils of varying nutrient availability and edaphic conditions.

To follow the hypothesis that agricultural management practices affect structure and function of the soil microbiome regarding soil health and plant-beneficial traits, high-throughput (HT) metagenome analyses were performed on Chernozem soil samples from a long-term field experiment designated LTE-1 carried out at Bernburg-Strenzfeld (Saxony-Anhalt, Germany). Metagenomic DNA was extracted from soil samples representing the following treatments: (i) plough tillage with standard nitrogen fertilization and use of fungicides and growth regulators, (ii) plough tillage with reduced nitrogen fertilization (50%), (iii) cultivator tillage with standard nitrogen fertilization and use of fungicides and growth regulators, and (iv) cultivator tillage with reduced nitrogen fertilization (50%). Bulk soil (BS), as well as root-affected soil (RS), were considered for all treatments in replicates. HT-sequencing of metagenomic DNA yielded approx. 100 Giga bases (Gb) of sequence information. Taxonomic profiling of soil communities revealed the presence of 70 phyla, whereby Proteobacteria, Actinobacteria, Bacteroidetes, Planctomycetes, Acidobacteria, Thaumarchaeota, Firmicutes, Verrucomicrobia and Chloroflexi feature abundances of more than 1%. Functional microbiome profiling uncovered, i.a., numerous potential plant-beneficial, plant-growth-promoting and biocontrol traits predicted to be involved in nutrient provision, phytohormone synthesis, antagonism against pathogens and signal molecule synthesis relevant in microbe\u2013plant interaction. Neither taxonomic nor functional microbiome profiling based on single-read analyses revealed pronounced differences regarding the farming practices applied. Soil metagenome sequences were assembled and taxonomically binned. The ten most reliable and abundant Metagenomically Assembled Genomes (MAGs) were taxonomically classified and metabolically reconstructed. Importance of the phylum Thaumarchaeota for the analyzed microbiome is corroborated by the fact that the four corresponding MAGs were predicted to oxidize ammonia (nitrification), thus contributing to the cycling of nitrogen, and in addition are most probably able to fix carbon dioxide. Moreover, Thaumarchaeota and several bacterial MAGs also possess genes with predicted functions in plant\u2013growth\u2013promotion. Abundances of certain MAGs (species resolution level) responded to the tillage practice, whereas the factors compartment (BS vs. RS) and nitrogen fertilization only marginally shaped MAG abundance profiles. Hence, soil management regimes promoting plant-beneficial microbiome members are very likely advantageous for the respective agrosystem, its health and carbon sequestration and accordingly may enhance plant productivity. Since Chernozem soils are highly fertile, corresponding microbiome data represent a valuable reference resource for agronomy in general.

", "keywords": ["0301 basic medicine", "570", "plant\u2013growth\u2013promotion (PGP)", "metagenomically-assembled-genomes (MAGs)", "Article", "03 medical and health sciences", "carbon dioxide fixation", "Ammonia", "metagenomic binning", "Germany", "soil microbiome", "Proteobacteria", "Humans", "biocontrol", "secondary metabolite synthesis", "suppressive soil", "Phylogeny", "Soil Microbiology", "soil microbiome; suppressive soil; biocontrol; plant\u2013growth\u2013promotion (PGP); metagenomic binning; metagenomically-assembled-genomes (MAGs); secondary metabolite synthesis; carbon dioxide fixation; carbohydrate-active enzymes; differentially abundant features (DAFs)", "2. Zero hunger", "Bacteria", "Bacteroidetes", "Agriculture", "differentially abundant features (DAFs)", "15. Life on land", "Archaea", "Actinobacteria", "13. Climate action", "carbohydrate-active enzymes", "Metagenome"]}, "links": [{"href": "http://www.mdpi.com/2073-4425/10/6/424/pdf"}, {"href": "https://www.mdpi.com/2073-4425/10/6/424/pdf"}, {"href": "https://doi.org/2946862318"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Genes", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "2946862318", "name": "item", "description": "2946862318", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/2946862318"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-06-03T00:00:00Z"}}, {"id": "2950940967", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-27T16:30:28Z", "type": "Journal Article", "created": "2019-06-14", "title": "Metagenomic Insights into the Bacterial Functions of a Diesel-Degrading Consortium for the Rhizoremediation of Diesel-Polluted Soil", "description": "

Diesel is a complex pollutant composed of a mixture of aliphatic and aromatic hydrocarbons. Because of this complexity, diesel bioremediation requires multiple microorganisms, which harbor the catabolic pathways to degrade the mixture. By enrichment cultivation of rhizospheric soil from a diesel-polluted site, we have isolated a bacterial consortium that can grow aerobically with diesel and different alkanes and polycyclic aromatic hydrocarbons (PAHs) as the sole carbon and energy source. Microbiome diversity analyses based on 16S rRNA gene showed that the diesel-degrading consortium consists of 76 amplicon sequence variants (ASVs) and it is dominated by Pseudomonas, Aquabacterium, Chryseobacterium, and Sphingomonadaceae. Changes in microbiome composition were observed when growing on specific hydrocarbons, reflecting that different populations degrade different hydrocarbons. Shotgun metagenome sequence analysis of the consortium growing on diesel has identified redundant genes encoding enzymes implicated in the initial oxidation of alkanes (AlkB, LadA, CYP450) and a variety of hydroxylating and ring-cleavage dioxygenases involved in aromatic and polyaromatic hydrocarbon degradation. The phylogenetic assignment of these enzymes to specific genera allowed us to model the role of specific populations in the diesel-degrading consortium. Rhizoremediation of diesel-polluted soil microcosms using the consortium, resulted in an important enhancement in the reduction of total petroleum hydrocarbons (TPHs), making it suited for rhizoremediation applications.

", "keywords": ["0301 basic medicine", "TPH", "consortium", "Article", "diesel", "03 medical and health sciences", "PAHs", "rhizoremediation", "Pseudomonas", "RNA", " Ribosomal", " 16S", "11. Sustainability", "Soil Pollutants", "Polycyclic Aromatic Hydrocarbons", "bacteria", "Phylogeny", "Soil Microbiology", "Chryseobacterium", "2. Zero hunger", "metagenomics", "rhizoremediation; diesel; bacteria; consortium; metagenomics; PAHs; TPH", "0303 health sciences", "Microbiota", "Biodiversity", "15. Life on land", "Biolog\u00eda y Biomedicina / Biolog\u00eda", "Rhizoremediation", "Biodegradation", " Environmental", "Petroleum", "13. Climate action", "Metagenome"]}, "links": [{"href": "http://www.mdpi.com/2073-4425/10/6/456/pdf"}, {"href": "https://www.mdpi.com/2073-4425/10/6/456/pdf"}, {"href": "https://doi.org/2950940967"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Genes", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "2950940967", "name": "item", "description": "2950940967", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/2950940967"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-06-14T00:00:00Z"}}, {"id": "2974770673", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-27T16:30:30Z", "type": "Journal Article", "created": "2019-09-19", "title": "Natural Microbial Communities Can Be Manipulated by Artificially Constructed Biofilms", "description": "Abstract

Biofouling proceeds in successive steps where the primary colonizers affect the phylogenetic and functional structure of a future microbial consortium. Using microbiologically influenced corrosion (MIC) as a study case, a novel approach for material surface protection is described, which does not prevent biofouling, but rather shapes the process of natural biofilm development to exclude MIC\uffe2\uff80\uff90related microorganisms. This approach interferes with the early steps of natural biofilm formation affecting how the community is finally developed. It is based on a multilayer artificial biofilm, composed of electrostatically modified bacterial cells, producing antimicrobial compounds, extracellular antimicrobial polyelectrolyte matrix, and a water\uffe2\uff80\uff90proof rubber elastomer barrier. The artificial biofilm is constructed layer\uffe2\uff80\uff90by\uffe2\uff80\uff90layer (LBL) by manipulating the electrostatic interactions between microbial cells and material surfaces. Field testing on standard steel coupons exposed in the sea for more than 30 days followed by laboratory analyses using molecular\uffe2\uff80\uff90biology tools demonstrate that the preapplied artificial biofilm affects the phylogenetic structure of the developing natural biofilm, reducing phylogenetic diversity and excluding MIC\uffe2\uff80\uff90related bacteria. This sustainable solution for material protection showcases the usefulness of artificially guiding microbial evolutionary processes via the electrostatic modification and controlled delivery of bacterial cells and extracellular matrix to the exposed material surfaces.

In the thermophilic biogas-producing microbial community, the genus Methanothermobacter was previously described to be frequently abundant. The aim of this study was to establish and analyze the genome sequence of the archaeal strain Methanothermobacter wolfeii SIV6 originating from a thermophilic industrial-scale biogas fermenter and compare it to related reference genomes. The circular chromosome has a size of 1,686,891 bases, featuring a GC content of 48.89%. Comparative analyses considering three completely sequenced Methanothermobacter strains revealed a core genome of 1494 coding sequences and 16 strain specific genes for M. wolfeii SIV6, which include glycosyltransferases and CRISPR/cas associated genes. Moreover, M. wolfeii SIV6 harbors all genes for the hydrogenotrophic methanogenesis pathway and genome-centered metatranscriptomics indicates the high metabolic activity of this strain, with 25.18% of all transcripts per million (TPM) belong to the hydrogenotrophic methanogenesis pathway and 18.02% of these TPM exclusively belonging to the mcr operon. This operon encodes the different subunits of the enzyme methyl-coenzyme M reductase (EC: 2.8.4.1), which catalyzes the final and rate-limiting step during methanogenesis. Finally, fragment recruitment of metagenomic reads from the thermophilic biogas fermenter on the SIV6 genome showed that the strain is abundant (1.2%) within the indigenous microbial community. Detailed analysis of the archaeal isolate M. wolfeii SIV6 indicates its role and function within the microbial community of the thermophilic biogas fermenter, towards a better understanding of the biogas production process and a microbial-based management of this complex process.

", "keywords": ["0301 basic medicine", "2. Zero hunger", "570", "Methanothermobacter wolfeii", "metagenomics", "0303 health sciences", "metatranscriptomics", "thermophilic biogas fermenter", "comparative analyses", "Methanothermobacter wolfeii; thermophilic biogas fermenter; genome mining; comparative analyses; CRISPR/cas; metabolic pathway reconstruction; metagenomics; fragment recruitment; metatranscriptomics", "CRISPR/cas", "metabolic pathway reconstruction", "7. Clean energy", "Article", "03 medical and health sciences", "CRISPR/cas", "genome mining", "8. Economic growth", "Methanothermobacter wolfeii", "fragment recruitment"]}, "links": [{"href": "http://www.mdpi.com/2076-2607/8/1/13/pdf"}, {"href": "https://www.mdpi.com/2076-2607/8/1/13/pdf"}, {"href": "https://doi.org/2995045825"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Microorganisms", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "2995045825", "name": "item", "description": "2995045825", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/2995045825"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-12-20T00:00:00Z"}}, {"id": "3136853395", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-27T16:30:49Z", "type": "Journal Article", "created": "2021-03-15", "title": "Soil Microbiome Structure and Function in Ecopiles Used to Remediate Petroleum-Contaminated Soil", "description": "

The soil microbiome consists of a vast variety of microorganisms which contribute to essential ecosystem services including nutrient recycling, protecting soil structure, and pathogen suppression. Recalcitrant organic compounds present in soils contaminated with fuel oil can lead to a decrease in functional redundancy within soil microbiomes. Ecopiling is a passive bioremediation technique involving biostimulation of indigenous hydrocarbon degraders, bioaugmentation through inoculation with known petroleum-degrading consortia, and phytoremediation. The current study investigates the assemblage of soil microbial communities and pollutant-degrading potential in soil undergoing the Ecopiling process, through the amplicon marker gene and metagenomics analysis of the contaminated soil. The analysis of key community members including bacteria, fungi, and nematodes revealed a surprisingly diverse microbial community composition within the contaminated soil. The soil bacterial community was found to be dominated by Alphaproteobacteria (60\uffe2\uff80\uff9370%) with the most abundant genera such as Lysobacter, Dietzia, Pseudomonas, and Extensimonas. The fungal community consisted mainly of Ascomycota (50\uffe2\uff80\uff9370% relative abundance). Soil sequencing data allowed the identification of key enzymes involved in the biodegradation of hydrocarbons, providing a novel window into the function of individual bacterial groups in the Ecopile. Although the genus Lysobacter was identified as the most abundant bacterial genus (11\uffe2\uff80\uff9346%) in all of the contaminated soil samples, the metagenomic data were unable to confirm a role for this group in petrochemical degradation. Conversely, genera with relatively low abundance such as Dietzia (0.4\uffe2\uff80\uff939.0%), Pusillimonas (0.7\uffe2\uff80\uff932.3%), and Bradyrhizobium (0.8\uffe2\uff80\uff931.8%) did possess genes involved in aliphatic or aromatic compound degradation.The rhizobiota, particularly nitrogen-fixing bacteria, play a crucial role in plant functioning by providing essential nutrients and defense against pathogens. This study investigated the diversity of nitrogen-fixing bacteria in a relatively understudied habitat: technosoils developed from industrial soda production. To analyze the bacterial diversity in the rhizosphere soils of wheat (Triticum aestivum L.) and aster (Tripolium pannonicum Jacq.), regions of the nifH gene were amplified and sequenced from the resident bacterial communities. A polyvinylidene fluoride (PVDF) membrane was employed for metagenomic DNA extraction, enhancing the detection of nitrogen-fixing bacteria. Prior to standard DNA extraction, an enrichment step was conducted in nitrogen-free JMV medium at 26\uffc2\uffa0\uffc2\uffb0C for 24\uffc2\uffa0h, with a modification that replaced soil with the PVDF membrane. This approach enabled a more comprehensive analysis of the rhizosphere bacterial community, revealing that unique amplicon sequence variants (ASVs) in aster and wheat membrane samples accounted for a notable proportion of all ASVs in the dataset (8.5% and 23%, respectively) that were not captured using the standard method. Additionally, our findings demonstrated higher alpha diversity of nitrogen-fixing bacteria in the wheat rhizosphere compared to the aster rhizosphere. In wheat, the dominant genus was Insolitispirillum (38.80%), followed by unclassified genera within Gammaproteobacteria (9.76%) and Rhodospirillaceae (4.74%). In contrast, the aster rhizosphere was predominantly occupied by Azotobacter (95.69%).For a sustainable production of food, research on agricultural soil microbial communities is inevitable. Due to its immense complexity, soil is still some kind of black box. Soil study designs for identifying microbiome members of relevance have various scopes and focus on particular environmental factors. To identify common features of soil microbiomes, data from multiple studies should be compiled and processed. Taxonomic compositions and functional capabilities of microbial communities associated with soils and plants have been identified and characterized in the past few decades. From a fertile Loess\uffe2\uff80\uff93Chernozem-type soil located in Germany, metagenomically assembled genomes (MAGs) classified as members of the phylum Thaumarchaeota/Thermoproteota were obtained. These possibly represent keystone agricultural soil community members encoding functions of relevance for soil fertility and plant health. Their importance for the analyzed microbiomes is corroborated by the fact that they were predicted to contribute to the cycling of nitrogen, feature the genetic potential to fix carbon dioxide and possess genes with predicted functions in plant-growth-promotion (PGP). To expand the knowledge on soil community members belonging to the phylum Thaumarchaeota, we conducted a meta-analysis integrating primary studies on European agricultural soil microbiomes.

Results

Taxonomic classification of the selected soil metagenomes revealed the shared agricultural soil core microbiome of European soils from 19 locations. Metadata reporting was heterogeneous between the different studies. According to the available metadata, we separated the data into 68 treatments. The phylum Thaumarchaeota is part of the core microbiome and represents a major constituent of the archaeal subcommunities in all European agricultural soils. At a higher taxonomic resolution, 2074 genera constituted the core microbiome. We observed that viral genera strongly contribute to variation in taxonomic profiles. By binning of metagenomically assembled contigs, Thaumarchaeota MAGs could be recovered from several European soil metagenomes. Notably, many of them were classified as members of the family Nitrososphaeraceae, highlighting the importance of this family for agricultural soils. The specific Loess-Chernozem Thaumarchaeota MAGs were most abundant in their original soil, but also seem to be of importance in other agricultural soil microbial communities. Metabolic reconstruction of Switzerland_1_MAG_2 revealed its genetic potential i.a. regarding carbon dioxide (CO$$_2$$ 2 ) fixation, ammonia oxidation, exopolysaccharide production and a beneficial effect on plant growth. Similar genetic features were also present in other reconstructed MAGs. Three Nitrososphaeraceae MAGs are all most likely members of a so far unknown genus.

Conclusions

On a broad view, European agricultural soil microbiomes are similarly structured. Differences in community structure were observable, although analysis was complicated by heterogeneity in metadata recording. Our study highlights the need for standardized metadata reporting and the benefits of networking open data. Future soil sequencing studies should also consider high sequencing depths in order to enable reconstruction of genome bins. Intriguingly, the family Nitrososphaeraceae commonly seems to be of importance in agricultural microbiomes.

", "keywords": ["2. Zero hunger", "570", "Soil microbial diversity", "Metagenomically assembled genomes", "Research", "European soil", "Open metagenome data analysis", "15. Life on land", "Microbiology", "Thaumarchaeota", "QR1-502", "Environmental sciences", "Agricultural microbiome", "Soil health", "GE1-350"]}, "links": [{"href": "https://link.springer.com/content/pdf/10.1186/s40793-023-00479-9.pdf"}, {"href": "https://doi.org/PMC10064710"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Microbiome", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "PMC10064710", "name": "item", "description": "PMC10064710", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/PMC10064710"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-03-30T00:00:00Z"}}, {"id": "a121feba-bcf7-4f35-ab18-e963ebc0b7c2", "type": "Feature", "geometry": {"type": "Polygon", "coordinates": [[[11.69, 48.4], [11.69, 48.4], [11.69, 48.4], [11.69, 48.4], [11.69, 48.4]]]}, "properties": {"themes": [{"concepts": [{"id": "farming"}], "scheme": "https://standards.iso.org/iso/19139/resources/gmxCodelists.xml#MD_TopicCategoryCode"}, {"concepts": [{"id": "Soil"}], "scheme": "AGROVOC Multilingual agricultural thesaurus"}, {"concepts": [{"id": "Soil microorganisms"}], "scheme": "AGROVOC Multilingual agricultural thesaurus"}, {"concepts": [{"id": "Phosphate fertilizers"}], "scheme": "AGROVOC Multilingual agricultural thesaurus"}, {"concepts": [{"id": "DNA sequence"}], "scheme": "AGROVOC Multilingual agricultural thesaurus"}, {"concepts": [{"id": "Organic fertilizers"}], "scheme": "AGROVOC Multilingual agricultural thesaurus"}, {"concepts": [{"id": "DNA sequence"}], "scheme": "AGROVOC Multilingual agricultural thesaurus"}, {"concepts": [{"id": "Boden"}], "scheme": "GEMET - INSPIRE themes, version 1.0"}, {"concepts": [{"id": "opendata"}], "scheme": "Individual"}], "license": "CC BY", "rights": "Restrictions applied to assure the protection of privacy or intellectual property, and any special restrictions or limitations or warnings on using the resource or metadata.(e.g. Reports, articles, papers, scientific and non - scientific works of any form, including tables, maps, or any other kind of output, in printed or electronic form, based in whole or in part on the data supplied, must contain an acknowledgement of the form: \"Data re-used from the BonaRes Data Centre www.bonares.de. This data were created as part of BonaRes Module A-Project - InnoSoilPhos's research activities.\"Although every care has been taken in preparing and testing the data, BonaRes Module A-Project - InnoSoilPhos and BonaRes Data Centre cannot guarantee that the data are correct; neither does BonaRes Module A-Project - InnoSoilPhos and BonaRes Data Centre accept any liability whatsoever for any error, missing data or omission in the data, or for any loss or damage arising from its use. The BonaRes Module A-Project - InnoSoilPhos and BonaRes Data Centre will not be responsible for any direct or indirect use which might be made of the data. The access to this data is restricted during embargo time. If prior access is requested, contact the data owner / author.", "updated": "2020-09-01", "type": "Dataset", "created": "2017-05-05", "language": "eng", "title": "Raw data of C and N measurements of agricultural soils in Rostock and Freising in 2015 and links to the relevant metagenomic sequencing data in the NCBI Sequence Read Archive", "description": "The availability of phosphorus (P), strongly influences crop yield and quality. However, due to agricultural practices P accumulated in soil, mostly in inaccessible forms. Bacteria play an important role to mobilize P. The release of P is rather a result of the bacterial need for C and N than the immediate need of P. Thus, we postulated that the addition of carbon and N would stimulate phosphorus mobilization by bacteria. Thus, we performed a metagenomic study to investigate soils from two agricultural sites (Rostock, Freising), which only received mineral N fertilizer or mineral N and organic fertilizer for more than 20 years. The metagenomic sequencing followed by taxonomic and functional annotations of the sequences by blasting against the NCBI-nr database (http://ftp.ncbi.nlm.nih.gov/blast/ db/FASTA/nr.gz) and the Kyoto Encyclopedia of Genes and Genomes (KEGG) database (June 2011) also revealed that independent of site and season, the relative abundance of genes involved in P turnover was not significantly affected by the addition of fertilizers. However, the type of fertilization had a significant impact on the composition of bacterial families harboring genes coding for the different P transformation processes. This gives rise to the possibility that fertilizers can substantially change phosphorus turnover efficiency by favoring different families. Additionally, none of the families involved in phosphorus turnover covered all investigated processes. Therefore, promoting bacteria which play an essential role specifically in mobilization of hardly accessible phosphorus could help to secure the phosphorus supply of plants in soils with low P input as so far the most abundant genes involved in the acquisition of external P sources in our study were those involved in solubilization and subsequent uptake of inorganic phosphorus. The raw sequencing data is available at the sequencing read archive (SRA) under the BioProject ID PRJNA385596 (SAMN06894543- SAMN06894566). Additionally, we determined dissolved organic nitrogen (DON) and carbon (DOC) contents by extracting the soil with 0.01 M CaCl2 solution (soil to liquid ratio: 1:4) and the microbial biomass carbon (Cmic) and nitrogen (Nmic) content by applying a chloroform-fumigation-extraction procedure. Our data indicate that more the site then the treatment changed those values as stability of Cmic, Nmic as well as DOC and DON was high across the different fertilizer regimes. Only additional P fertilization slightly increased DOC values. Data are published in Grafe, M., Goers, M., von Tucher, S., Baum, C., Zimmer, D., Leinweber, P., Vestergaard, G., Kublik, S., Schloter, M., and Schulz, S.: Bacterial potentials for uptake, solubilization and mineralization of extracellular phosphorus in agricultural soils are highly stable under different fertilization regimes, Environ. Microbiol. Rep., 10, 320-327, https://doi.org/10.1111/1758-2229.12651", "formats": [{"name": "CSV"}], "keywords": ["Soil", "Soil microorganisms", "Phosphate fertilizers", "DNA sequence", "Organic fertilizers", "DNA sequence", "metagenomic sequencing", "Boden", "opendata"], "contacts": [{"name": "Stefanie Schulz", "organization": "Helmholtz Zentrum M\u00fcnchen", "position": "Posdoc", "roles": ["supervisor"], "phones": [{"value": "+498931873054"}], "emails": [{"value": "stefanie.schulz@helmholtz-muenchen.de"}], "addresses": [{"deliveryPoint": [null], "city": "Neuherberg", "administrativeArea": null, "postalCode": null, "country": "Germany"}], "links": [{"href": null}]}, {"name": "BonaRes Data Centre", "organization": "Leibniz Centre for Agricultural Landscape Research (ZALF)", "position": "Research Platform 'Data Analysis & Simulation' - WG Geodata", "roles": ["publisher"], "phones": [{"value": "+49 33432 82 171"}], "emails": [{"value": "bonares-datenzentrum@zalf.de"}], "addresses": [{"deliveryPoint": ["Eberswalder Strasse 84"], "city": "M\u00fcncheberg", "administrativeArea": "Brandenburg", "postalCode": "15374", "country": "Germany"}], "links": [{"href": null}]}, {"name": "Peter Leinweber", "organization": "University of Rostock", "position": "Head of Soil Science", "roles": ["projectLeader"], "phones": [{"value": "+493814983120"}], "emails": [{"value": "peter.leinweber@uni-rostock.de"}], "addresses": [{"deliveryPoint": [null], "city": "Rostock", "administrativeArea": null, "postalCode": null, "country": "Germany"}], "links": [{"href": null}]}, {"name": "Martin Grafe", "organization": "Helmholtz Zentrum M\u00fcnchen", "position": null, "roles": ["author"], "phones": [{"value": null}], "emails": [{"value": "martin_grafe@outlook.com"}], "addresses": [{"deliveryPoint": [null], "city": null, "administrativeArea": null, "postalCode": null, "country": null}], "links": [{"href": null}]}, {"name": "Michael Schloter", "organization": "Helmholtz Zentrum M\u00fcnchen", "position": "Professor", "roles": ["workPackageLeader"], "phones": [{"value": null}], "emails": [{"value": "schloter@helmholtz-muenchen.de"}], "addresses": [{"deliveryPoint": [null], "city": "Neuherberg", "administrativeArea": null, "postalCode": null, "country": "Germany"}], "links": [{"href": null}]}, {"organization": "Helmholtz Zentrum M\u00fcnchen", "roles": ["contributor"]}]}, "links": [{"href": "https://maps.bonares.de/mapapps/resources/apps/bonares/index.html?lang=en&mid=a121feba-bcf7-4f35-ab18-e963ebc0b7c2", "rel": "download"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/27dda226-5326-454b-9877-5ef641e208b5", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "a121feba-bcf7-4f35-ab18-e963ebc0b7c2", "name": "item", "description": "a121feba-bcf7-4f35-ab18-e963ebc0b7c2", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/a121feba-bcf7-4f35-ab18-e963ebc0b7c2"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"interval": ["2015-04-15T00:00:00Z", "2015-09-15T00:00:00Z"]}}, {"id": "PMC12062204", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-27T16:33:48Z", "type": "Journal Article", "created": "2025-05-08", "title": "Enhanced understanding of nitrogen fixing bacteria through DNA extraction with polyvinylidene fluoride membrane", "description": "Abstract

The rhizobiota, particularly nitrogen-fixing bacteria, play a crucial role in plant functioning by providing essential nutrients and defense against pathogens. This study investigated the diversity of nitrogen-fixing bacteria in a relatively understudied habitat: technosoils developed from industrial soda production. To analyze the bacterial diversity in the rhizosphere soils of wheat (Triticum aestivum L.) and aster (Tripolium pannonicum Jacq.), regions of the nifH gene were amplified and sequenced from the resident bacterial communities. A polyvinylidene fluoride (PVDF) membrane was employed for metagenomic DNA extraction, enhancing the detection of nitrogen-fixing bacteria. Prior to standard DNA extraction, an enrichment step was conducted in nitrogen-free JMV medium at 26\uffc2\uffa0\uffc2\uffb0C for 24\uffc2\uffa0h, with a modification that replaced soil with the PVDF membrane. This approach enabled a more comprehensive analysis of the rhizosphere bacterial community, revealing that unique amplicon sequence variants (ASVs) in aster and wheat membrane samples accounted for a notable proportion of all ASVs in the dataset (8.5% and 23%, respectively) that were not captured using the standard method. Additionally, our findings demonstrated higher alpha diversity of nitrogen-fixing bacteria in the wheat rhizosphere compared to the aster rhizosphere. In wheat, the dominant genus was Insolitispirillum (38.80%), followed by unclassified genera within Gammaproteobacteria (9.76%) and Rhodospirillaceae (4.74%). In contrast, the aster rhizosphere was predominantly occupied by Azotobacter (95.69%).

To follow the hypothesis that agricultural management practices affect structure and function of the soil microbiome regarding soil health and plant-beneficial traits, high-throughput (HT) metagenome analyses were performed on Chernozem soil samples from a long-term field experiment designated LTE-1 carried out at Bernburg-Strenzfeld (Saxony-Anhalt, Germany). Metagenomic DNA was extracted from soil samples representing the following treatments: (i) plough tillage with standard nitrogen fertilization and use of fungicides and growth regulators, (ii) plough tillage with reduced nitrogen fertilization (50%), (iii) cultivator tillage with standard nitrogen fertilization and use of fungicides and growth regulators, and (iv) cultivator tillage with reduced nitrogen fertilization (50%). Bulk soil (BS), as well as root-affected soil (RS), were considered for all treatments in replicates. HT-sequencing of metagenomic DNA yielded approx. 100 Giga bases (Gb) of sequence information. Taxonomic profiling of soil communities revealed the presence of 70 phyla, whereby Proteobacteria, Actinobacteria, Bacteroidetes, Planctomycetes, Acidobacteria, Thaumarchaeota, Firmicutes, Verrucomicrobia and Chloroflexi feature abundances of more than 1%. Functional microbiome profiling uncovered, i.a., numerous potential plant-beneficial, plant-growth-promoting and biocontrol traits predicted to be involved in nutrient provision, phytohormone synthesis, antagonism against pathogens and signal molecule synthesis relevant in microbe\u2013plant interaction. Neither taxonomic nor functional microbiome profiling based on single-read analyses revealed pronounced differences regarding the farming practices applied. Soil metagenome sequences were assembled and taxonomically binned. The ten most reliable and abundant Metagenomically Assembled Genomes (MAGs) were taxonomically classified and metabolically reconstructed. Importance of the phylum Thaumarchaeota for the analyzed microbiome is corroborated by the fact that the four corresponding MAGs were predicted to oxidize ammonia (nitrification), thus contributing to the cycling of nitrogen, and in addition are most probably able to fix carbon dioxide. Moreover, Thaumarchaeota and several bacterial MAGs also possess genes with predicted functions in plant\u2013growth\u2013promotion. Abundances of certain MAGs (species resolution level) responded to the tillage practice, whereas the factors compartment (BS vs. RS) and nitrogen fertilization only marginally shaped MAG abundance profiles. Hence, soil management regimes promoting plant-beneficial microbiome members are very likely advantageous for the respective agrosystem, its health and carbon sequestration and accordingly may enhance plant productivity. Since Chernozem soils are highly fertile, corresponding microbiome data represent a valuable reference resource for agronomy in general.

", "keywords": ["0301 basic medicine", "570", "plant\u2013growth\u2013promotion (PGP)", "metagenomically-assembled-genomes (MAGs)", "Article", "03 medical and health sciences", "carbon dioxide fixation", "Ammonia", "metagenomic binning", "Germany", "soil microbiome", "Proteobacteria", "Humans", "biocontrol", "secondary metabolite synthesis", "suppressive soil", "Phylogeny", "Soil Microbiology", "2. Zero hunger", "Bacteria", "Bacteroidetes", "Agriculture", "differentially abundant features (DAFs)", "15. Life on land", "Archaea", "Actinobacteria", "13. Climate action", "carbohydrate-active enzymes", "Metagenome"]}, "links": [{"href": "http://www.mdpi.com/2073-4425/10/6/424/pdf"}, {"href": "https://www.mdpi.com/2073-4425/10/6/424/pdf"}, {"href": "https://doi.org/PMC6627896"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Genes", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "PMC6627896", "name": "item", "description": "PMC6627896", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/PMC6627896"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-06-03T00:00:00Z"}}, {"id": "PMC7022856", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-27T16:33:50Z", "type": "Journal Article", "created": "2019-12-20", "title": "Genome Analyses and Genome-Centered Metatranscriptomics of Methanothermobacter wolfeii Strain SIV6, Isolated from a Thermophilic Production-Scale Biogas Fermenter", "description": "

In the thermophilic biogas-producing microbial community, the genus Methanothermobacter was previously described to be frequently abundant. The aim of this study was to establish and analyze the genome sequence of the archaeal strain Methanothermobacter wolfeii SIV6 originating from a thermophilic industrial-scale biogas fermenter and compare it to related reference genomes. The circular chromosome has a size of 1,686,891 bases, featuring a GC content of 48.89%. Comparative analyses considering three completely sequenced Methanothermobacter strains revealed a core genome of 1494 coding sequences and 16 strain specific genes for M. wolfeii SIV6, which include glycosyltransferases and CRISPR/cas associated genes. Moreover, M. wolfeii SIV6 harbors all genes for the hydrogenotrophic methanogenesis pathway and genome-centered metatranscriptomics indicates the high metabolic activity of this strain, with 25.18% of all transcripts per million (TPM) belong to the hydrogenotrophic methanogenesis pathway and 18.02% of these TPM exclusively belonging to the mcr operon. This operon encodes the different subunits of the enzyme methyl-coenzyme M reductase (EC: 2.8.4.1), which catalyzes the final and rate-limiting step during methanogenesis. Finally, fragment recruitment of metagenomic reads from the thermophilic biogas fermenter on the SIV6 genome showed that the strain is abundant (1.2%) within the indigenous microbial community. Detailed analysis of the archaeal isolate M. wolfeii SIV6 indicates its role and function within the microbial community of the thermophilic biogas fermenter, towards a better understanding of the biogas production process and a microbial-based management of this complex process.

", "keywords": ["2. Zero hunger", "0301 basic medicine", "570", "Methanothermobacter wolfeii", "metagenomics", "0303 health sciences", "metatranscriptomics", "thermophilic biogas fermenter", "comparative analyses", "CRISPR/cas", "metabolic pathway reconstruction", "7. Clean energy", "Article", "03 medical and health sciences", "CRISPR/cas", "genome mining", "8. Economic growth", "Methanothermobacter wolfeii", "fragment recruitment"]}, "links": [{"href": "http://www.mdpi.com/2076-2607/8/1/13/pdf"}, {"href": "https://www.mdpi.com/2076-2607/8/1/13/pdf"}, {"href": "https://doi.org/PMC7022856"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Microorganisms", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "PMC7022856", "name": "item", "description": "PMC7022856", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/PMC7022856"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-12-20T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=metagenomic&offset=50&f=json", "hreflang": "en-US"}, {"rel": "alternate", "type": "text/html", "title": "This document as HTML", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=metagenomic&offset=50&f=html", "hreflang": "en-US"}, {"rel": "collection", "type": "application/json", "title": "Collection URL", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main", "hreflang": "en-US"}, {"type": "application/geo+json", "rel": "prev", "title": "items (prev)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=metagenomic&offset=0", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=metagenomic&offset=70", "hreflang": "en-US"}], "numberMatched": 70, "numberReturned": 20, "distributedFeatures": [], "timeStamp": "2026-06-27T18:19:38.144055Z"}