{"type": "FeatureCollection", "features": [{"id": "10.1007/s10021-013-9650-7", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-31T06:55:35Z", "type": "Journal Article", "created": "2013-02-21", "title": "Stimulation Of Different Functional Groups Of Bacteria By Various Plant Residues As A Driver Of Soil Priming Effect", "description": "The turnover of organic matter in soil depends on the activity of microbial decomposers. However, little is known about how modifications of the diversity of soil microbial communities induced by fresh organic matter (FOM) inputs can regulate carbon cycling. Here, we investigated the decomposition of two 13C labeled crop residues (wheat and alfalfa) and the dynamics of the genetic structure and taxonomic composition of the soil bacterial communities decomposing 13C labeled FOM and native unlabeled soil organic matter (SOM), respectively. It was achieved by combining the stable isotope probing method with molecular tools (DNA genotyping and pyrosequencing of 16S rDNA). Although a priming effect (PE) was always induced by residue addition, its intensity increased with the degradability of the plant residue. The input of both wheat and alfalfa residues induced a rapid dynamics of FOM-degrading communities, corresponding to the stimulation of bacterial phyla which have been previously described as copiotrophic organisms. However, the dynamics and the identity of the bacterial groups stimulated depended on the residue added, with Firmicutes dominating in the wheat treatment and Proteobacteria dominating in the alfalfa treatment after 3\u00a0days of incubation. In both treatments, SOM-degrading communities were dominated by Acidobacteria, Verrucomicrobia, and Gemmatimonadetes phyla which have been previously described as oligotrophic organisms. An early stimulation of SOM-degrading populations mainly belonging to Firmicutes and Bacteroidetes groups was observed in the alfalfa treatment whereas no change occurred in the wheat treatment. Our findings support the hypothesis that the succession of bacterial taxonomic groups occurring in SOM- and FOM-degrading communities during the degradation process may be an important driver of the PE, and consequently of carbon dynamics in soil.", "keywords": ["0301 basic medicine", "2. Zero hunger", "570", "0303 health sciences", "[SDE.MCG]Environmental Sciences/Global Changes", "bacterial diversity", "[SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil study", "15. Life on land", "[SDV.MP.BAC]Life Sciences [q-bio]/Microbiology and Parasitology/Bacteriology", "630", "soil", "[SDE.MCG] Environmental Sciences/Global Changes", "03 medical and health sciences", "pyrosequencing", "[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry", "soil organic matter", "carbon cycle", "[SDU.STU.GC] Sciences of the Universe [physics]/Earth Sciences/Geochemistry", "[SDV.MP.BAC] Life Sciences [q-bio]/Microbiology and Parasitology/Bacteriology", "[SDV.SA.SDS] Life Sciences [q-bio]/Agricultural sciences/Soil study", "stable isotope probing"]}, "links": [{"href": "https://doi.org/10.1007/s10021-013-9650-7"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecosystems", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10021-013-9650-7", "name": "item", "description": "10.1007/s10021-013-9650-7", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10021-013-9650-7"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-02-22T00:00:00Z"}}, {"id": "10.1016/j.ejsobi.2013.10.007", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-31T06:56:52Z", "type": "Journal Article", "created": "2013-11-02", "title": "Effect Of Biochar Addition On Soil Microbial Community In A Wheat Crop", "description": "Biochar is known to enhance soil fertility and C sequestration, but relatively little information is currently available about its effect on soil microbial community, a component of terrestrial ecosystems that plays a key role in nutrient cycling. This study tested the effects of soil amendment with two loads of wood-derived biochar (30 and 60 t ha(-1)) in a wheat crop in Tuscany (Italy). Soil samples were collected 3 and 14 months after treatments over two successive growing seasons, and analysed for pH, total organic C (C-org), extractable C (C-ext), microbial biomass-C (C-mic), 25 specific microbial activities, mean substrate-induced respiration (mSIR) for 25 substrates, functional microbial diversity and bacterial genetic diversity. No significant effect of biochar treatment was observed on C-org, C-ext, C-mic, microbial quotient (C-mic % C-org) or genetic diversity. An increase in mSIR, some specific microbial activities and soil pH, and a significant change in functional diversity were observed 3 months after treatment. In contrast, no effect of biochar was detected 14 months after treatment for the parameters considered, except for a small but significant increase in pH. Our data suggest that biochar addition stimulated soil microbial activity without causing any apparent disturbance, but this positive effect was very short-lived. (C) 2013 Published by Elsevier Masson SAS.", "keywords": ["2. Zero hunger", "Soil management", "Wood-derived biochar", "Soil bacterial diversity; Soil management; Soil microbial activity; Soil microbial functional diversity; Wheat crop; Wood-derived biochar;", "Soil microbial functional diversity", "Wheat crop", "Soil microbial activity", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "Soil bacterial diversity", "15. Life on land", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1016/j.ejsobi.2013.10.007"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/European%20Journal%20of%20Soil%20Biology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.ejsobi.2013.10.007", "name": "item", "description": "10.1016/j.ejsobi.2013.10.007", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.ejsobi.2013.10.007"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2014-01-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2016.06.035", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-05-31T06:57:14Z", "type": "Journal Article", "created": "2016-07-07", "title": "Cover Crops Prevent The Deleterious Effect Of Nitrogen Fertilisation On Bacterial Diversity By Maintaining The Carbon Content Of Ploughed Soil", "description": "Abstract   Synthetic nitrogen (N) fertilisers are widely used for enhancing agrosystem productivity and are thus thought to increase organic inputs from crop residues. However, many crop rotations have a low amount of organic residue returned to the soil since the whole aboveground crop biomass is harvested and exported. To compensate for such organic outputs and to improve soil quality, the introduction of winter cover crops in rotations has been suggested. A 4-year controlled field experiment was conducted to quantify the respective and combined effects of chemical N fertilisation and winter cover crops on plant productivity, organic carbon (C) and N inputs from crop residues and cover crops, changes in soil C and N concentrations, C:N ratio, soil mineral N, pH, soil moisture and soil bacterial biodiversity. A ploughing tillage system with low organic input was assessed, for which the main crops were spring wheat, green pea, forage maize, along with cover crops of different legume and non-legume species.  N fertilisation did not have an impact on the aboveground biomass except following forage maize. Cover crops increased the total amount of C and N inputs, irrespective of N fertilisation which had no significant effect. The soil N concentration decreased in all treatments, particularly when N fertilisers were applied under bare fallow conditions. The latter treatment also caused decreased soil C concentrations (slightly increased in the other treatments) and decreased bacterial biodiversity (no change in the other treatments). Bacteria from the Proteobacteria and Bacterioidetes phyla were highly correlated with soil from fertilised bare fallow conditions. While Verrucomicrobia was characteristic of non-fertilised bare fallow soils, Acidobacteria and Cyanobacteria were associated with the high C and N concentrations present in soils following cover crop treatments.  Taken together, these results demonstrate that in ploughing systems, under low organic restitution regimes, intensive N fertilisation decreases the diversity of the bacterial soil community and reduces soil C and N concentrations, but only in bare fallow conditions. There is a protective effect of winter cover crops against the deleterious effect of chemical N fertilisation on soil biodiversity and nutrient cycling, since they can maintain soil C and N concentrations. The use of winter cover crops containing legumes is thus a practice that is able to meet the criteria of a sustainable agriculture.", "keywords": ["2. Zero hunger", "Cover crops", "[SPI.GPROC] Engineering Sciences [physics]/Chemical and Process Engineering", "[SDV]Life Sciences [q-bio]", "04 agricultural and veterinary sciences", "Soil nitrogen/carbon", "[SDV.IDA] Life Sciences [q-bio]/Food engineering", "15. Life on land", "01 natural sciences", "630", "6. Clean water", "Organic inputs", "[SDV] Life Sciences [q-bio]", "Crop productivity", "Nitrogen fertilisation", "[SDV.IDA]Life Sciences [q-bio]/Food engineering", "11. Sustainability", "[SDV.BV]Life Sciences [q-bio]/Vegetal Biology", "0401 agriculture", " forestry", " and fisheries", "[SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering", "[SDV.BV] Life Sciences [q-bio]/Vegetal Biology", "Soil bacterial diversity", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2016.06.035"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2016.06.035", "name": "item", "description": "10.1016/j.geoderma.2016.06.035", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2016.06.035"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-11-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2018.05.016", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-31T06:57:50Z", "type": "Journal Article", "created": "2018-05-19", "title": "Experimentally testing the species-habitat size relationship on soil bacteria: A proof of concept", "description": "Abstract   The species-area relationship is one of the most widely reported ecological theories accounting for biodiversity of plants and animals. However, we lack solid experimental data demonstrating whether this key ecological theorem also applies in the microbial world. Here, we conducted a microcosm study to evaluate the role of habitat area in driving the diversity, abundance, composition and functioning (i.e., four enzyme activities linked to organic matter decomposition) of soil bacterial communities. Thus, we aim to evaluate whether the principle of species-area relationship is potentially applicable to soil microbes. We established a fully factorial experimental design of three island sizes (\u223c9, 50 and 150\u202fcm2) by two sterile soils (low, high resources). After six months of glasshouse incubation, habitat-area was positively related to bacterial richness, relative abundance of Chloroflexi, Verrucomicrobia and \u03b4-proteobacteria, and soil functions in both soils. Soil with higher resources always had the greatest bacterial richness and functions. Our findings provide a proof of concept by demonstrating the potential importance of both habitat-area and resource availability in driving soil bacterial biodiversity and functioning.", "keywords": ["2. Zero hunger", "habitat (ecology)", "XXXXXX - Unknown", "Bacterial diversity; Decomposition; Ecological theory; Miseq Illumina; Extracellular enzyme activities; quantitative PCR.", "soil biodiversity", "15. Life on land", "biodegradation", "soil microbiology"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2018.05.016"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Biology%20and%20Biochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.soilbio.2018.05.016", "name": "item", "description": "10.1016/j.soilbio.2018.05.016", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2018.05.016"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-08-01T00:00:00Z"}}, {"id": "10.1038/s41598-025-00173-5", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-31T06:58:34Z", "type": "Journal Article", "created": "2025-05-08", "title": "Enhanced understanding of nitrogen fixing bacteria through DNA extraction with polyvinylidene fluoride membrane", "description": "Abstract           <p>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%).</p", "keywords": ["DNA", " Bacterial", "Nitrogen-Fixing Bacteria", "nifH", "Science", "Q", "R", "Article", "Nitrogen-fixing bacteria", "PVDF membrane", "Fluorocarbon Polymers", "Bacterial diversity", "Nitrogen Fixation", "Rhizosphere", "Medicine", "Polyvinyls", "Metagenomics", "Triticum", "Soil Microbiology"], "contacts": [{"organization": "Agnieszka Kalwasi\u0144ska, Igor Kr\u00f3likiewicz, Sushma Rani Tirkey, Attila Szab\u00f3, Sweta Binod Kumar,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1038/s41598-025-00173-5"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Scientific%20Reports", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1038/s41598-025-00173-5", "name": "item", "description": "10.1038/s41598-025-00173-5", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1038/s41598-025-00173-5"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2025-05-08T00:00:00Z"}}, {"id": "10.1071/sr11203", "type": "Feature", "geometry": null, "properties": {"license": "unspecified", "updated": "2026-05-31T06:58:49Z", "type": "Journal Article", "created": "2011-11-11", "title": "Relationships Between Soil Organic Matter And The Soil Microbial Biomass (Size, Functional Diversity, And Community Structure) In Crop And Pasture Systems In A Semi-Arid Environment", "description": "<p>The quantity and/or quality of soil organic matter (SOM) and its fractions regulate microbial community composition and associated function. In this study an established, replicated agricultural systems trial in a semi-arid environment was used to test: (i) whether agricultural systems which have increased plant residue inputs increase the amount of labile SOM relative to total SOM, or change the quality of SOM fractions; and (ii) whether the size or quality of OM fractions is most strongly linked to the size, activity, functional diversity, and community structure of the soil microbial biomass. Soil (0\uffe2\uff80\uff9350\uffe2\uff80\uff89mm) was collected following 5 years of continuous wheat, crop rotation, crop\uffe2\uff80\uff93pasture rotation, annual pasture, or perennial pasture. Pastures were grazed by sheep. Direct drilling and non-inversion tillage techniques were compared in some cropping systems. Total carbon (C) increased with the proportion of pasture as a result of increased SOM inputs into these systems; land use also significantly affected SOM fractions and their chemical and physical nature. While the size, function, and structure of the soil microbial community were somewhat related to total soil C, they were better correlated with SOM fractions. The C\uffe2\uff80\uff89:\uffe2\uff80\uff89nitrogen (N) ratio of light fraction organic matter could be used to predict the amount of potentially mineralisable N in soil, while the C\uffe2\uff80\uff89:\uffe2\uff80\uff89N ratio of total SOM could not. Measurement of bacterial community structure (using denaturing gradient gel electrophoresis) significantly discriminated between land uses, while community-level physiological profiles revealed fewer differences. Overall, our findings support the premise that labile fractions of SOM are more strongly related to microbial community structure and function than is total SOM.</p>", "keywords": ["2. Zero hunger", "zero-tillage", "labile carbon", "bacterial diversity", "soil nitrogen supply", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "carbon sequestration", "soil biology", "630"]}, "links": [{"href": "https://doi.org/10.1071/sr11203"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1071/sr11203", "name": "item", "description": "10.1071/sr11203", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1071/sr11203"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-01-01T00:00:00Z"}}, {"id": "10.3390/genes13050850", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-31T07:01:41Z", "type": "Journal Article", "created": "2022-05-11", "title": "Short-Term Responses of Soil Microbial Communities to Changes in Air Temperature, Soil Moisture and UV Radiation", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>We analyzed the effects on a soil microbial community of short-term alterations in air temperature, soil moisture and ultraviolet radiation and assessed the role of invertebrates (species Enchytraeus crypticus) in modulating the community\u2019s response to these factors. The reference soil, Lufa 2.2, was incubated for 48 h, with and without invertebrates, under the following conditions: standard (20 \u00b0C + 50% water holding capacity (WHC)); increased air temperature (15\u201325 \u00b0C or 20\u201330 \u00b0C + 50% WHC); flood (20 \u00b0C + 75% WHC); drought (20 \u00b0C + 25% WHC); and ultraviolet radiation (UV) (20 \u00b0C + 50% WHC + UV). BIOLOG EcoPlates and 16S rDNA sequencing (Illumina) were used to assess the microbial community\u2019s physiological profile and the bacterial community\u2019s structure, respectively. The bacterial abundance (estimated by 16S rDNA qPCR) did not change. Most of the conditions led to an increase in microbial activity and a decrease in diversity. The structure of the bacterial community was particularly affected by higher air temperatures (20\u201330 \u00b0C, without E. crypticus) and floods (with E. crypticus). Effects were observed at the class, genera and OTU levels. The presence of invertebrates mostly resulted in the attenuation of the observed effects, highlighting the importance of considering microbiome\u2013invertebrate interactions. Considering future climate changes, the effects described here raise concern. This study provides fundamental knowledge to develop effective strategies to mitigate these negative outcomes. However, long-term studies integrating biotic and abiotic factors are needed.</p></article>", "keywords": ["0301 basic medicine", "Soil invertebrates", "Ultraviolet Rays", "drought", "microbial activity", "DNA", " Ribosomal", "Flood", "Article", "Quantitative PCR", "Soil", "03 medical and health sciences", "soil microbiome", "2. Zero hunger", "metagenomics", "increased temperature; drought; flood; UV exposure; microbial activity; bacterial diversity; metagenomics; quantitative PCR; soil microbiome; soil invertebrates", "Soil microbiome", "0303 health sciences", "Drought", "Bacteria", "Microbiota", "bacterial diversity", "Temperature", "Water", "flood", "15. Life on land", "soil invertebrates", "6. Clean water", "UV exposure", "Microbial activity", "Bacterial diversity", "13. Climate action", "quantitative PCR", "Metagenomics", "Increased temperature", "increased temperature"]}, "links": [{"href": "http://www.mdpi.com/2073-4425/13/5/850/pdf"}, {"href": "https://doi.org/10.3390/genes13050850"}, {"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": "10.3390/genes13050850", "name": "item", "description": "10.3390/genes13050850", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3390/genes13050850"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-05-10T00:00:00Z"}}, {"id": "10.3389/fmicb.2018.00149", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-05-31T07:01:30Z", "type": "Journal Article", "created": "2018-02-23", "title": "Bacterial Preferences for Specific Soil Particle Size Fractions Revealed by Community Analyses", "description": "Genetic fingerprinting demonstrated in previous studies that differently sized soil particle fractions (PSFs; clay, silt, and sand with particulate organic matter (POM)) harbor microbial communities that differ in structure, functional potentials and sensitivity to environmental conditions. To elucidate whether specific bacterial or archaeal taxa exhibit preference for specific PSFs, we examined the diversity of PCR-amplified 16S rRNA genes by high-throughput sequencing using total DNA extracted from three long-term fertilization variants (unfertilized, fertilized with minerals, and fertilized with animal manure) of an agricultural loamy sand soil and their PSFs. The PSFs were obtained by gentle ultrasonic dispersion, wet sieving, and centrifugation. The abundance of bacterial taxa assigned to operational taxonomic units (OTUs) differed less than 2.7% between unfractionated soil and soil based on combined PSFs. Across the three soil variants, no archaeal OTUs, but many bacterial OTUs, the latter representing 34-56% of all amplicon sequences, showed significant preferences for specific PSFs. The sand-sized fraction with POM was the preferred site for members of Bacteroidetes and Alphaproteobacteria, while Gemmatimonadales preferred coarse silt, Actinobacteria and Nitrosospira fine silt, and Planctomycetales clay. Firmicutes were depleted in the sand-sized fraction. In contrast, archaea, which represented 0.8% of all 16S rRNA gene sequences, showed only little preference for specific PSFs. We conclude that differently sized soil particles represent distinct microenvironments that support specific bacterial taxa and that these preferences could strongly contribute to the spatial heterogeneity and bacterial diversity found in soils.", "keywords": ["2. Zero hunger", "soil bacteria", "Soil bacteria", "soil DNA", "bacterial diversity", "04 agricultural and veterinary sciences", "Soil DNA", "15. Life on land", "Microbiology", "Soil archaea", "QR1-502", "Archaeal diversity", "Bacterial diversity", "archaeal diversity", "Soil particle size fractions", "0401 agriculture", " forestry", " and fisheries", "soil particle size fractions", "soil archaea", "16S rRNA gene amplicon sequencing"]}, "links": [{"href": "https://doi.org/10.3389/fmicb.2018.00149"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Frontiers%20in%20Microbiology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3389/fmicb.2018.00149", "name": "item", "description": "10.3389/fmicb.2018.00149", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3389/fmicb.2018.00149"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-02-23T00:00:00Z"}}, {"id": "10.3390/d2060910", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-31T07:01:39Z", "type": "Journal Article", "created": "2010-06-07", "description": "<p>This study evaluated microbial communities of soil (0\uffe2\uff80\uff9310 cm) as affected by dryland cropping systems under different tillage practices after 5 years. The soil type was an Olton sandy loam with an average of 16.4% clay, 67.6% sand and 0.65 g kg\uffe2\uff88\uff921 of organic matter (OM). The cropping systems evaluated were grain sorghum (Sorghum bicolor L.)\uffe2\uff80\uff94cotton (Gossypium hirsutum) (Srg-Ct), cotton-winter rye (Secale cereale)-grain sorghum (Ct-Rye-Srg), and a rotation of forage (f) sorghum (Sorghum bicolor L. and Sorghum sudanense) with winter rye (Srf-Rye), which were under no-tillage (nt) and conventional tillage (ct) practices. Soil microbial communities under cotton based cropping systems (Srg-Ct and Ct-Rye-Srg) showed lower fungal:bacterial ratios compared to the soil under Srf-Rye. Soil under Srf-Rye showed higher population densities of Bacteroidetes and Proteobacteria while lower Actinobacteria compared to Srg-Ct and Ct-Rye-Srg. Chloroflexi, Gemmatimonadetes and Verrucomicrobiae were higher in tilled soil compared to the no-tilled plots. Regardless the limited irrigation available to sustain agricultural production within these dryland cropping systems, this study demonstrated that differences in microbial communities are more affected by crop rotation than tillage management history. Although soil fungal diversity was not analyzed in this study, pyrosequencing suggests that tillage practices can affect bacterial phyla distribution in this sandy soil.</p>", "keywords": ["FAME analysis", "0301 basic medicine", "2. Zero hunger", "0303 health sciences", "QH301-705.5", "bacterial diversity", "cropping systems", "pyrosequencing; soil microbial communities; bacterial diversity; FAME analysis; enzyme activities; cropping systems; tillage; GRACEnet", "15. Life on land", "6. Clean water", "GRACEnet", "03 medical and health sciences", "pyrosequencing", "enzyme activities", "soil microbial communities", "tillage", "Biology (General)"]}, "links": [{"href": "http://www.mdpi.com/1424-2818/2/6/910/pdf"}, {"href": "https://doi.org/10.3390/d2060910"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Diversity", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3390/d2060910", "name": "item", "description": "10.3390/d2060910", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3390/d2060910"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-06-07T00:00:00Z"}}, {"id": "10.5061/dryad.wpzgmsbtq", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-31T07:02:21Z", "type": "Dataset", "created": "2023-10-05", "title": "Data from: Integrating variation in bacterial-fungal co-occurrence network with soil carbon dynamics", "description": "unspecifiedThe experimental site is located in the  state-owned Daguishan Forest Farm in Hezhou City, Guangxi Zhuang  Autonomous Region, China (111\u00b020\u20195\u2019\u2019E, 23\u00b058\u201933\u2019\u2019N). The mean annual  temperature in this area is 19.3\u2103, with mean annual precipitation and evaporation  of 2,056 mm and 1,200 mm, respectively. The soil type is classified as red  soil (i.e., ferralsols). A total of 12 plots (20 m wide \u00d7 30 m long) were  established to collect soil samples in\u00a0triplicate representing four  generations of <em>Eucalyptus </em>plantation. In each treatment, the  <em>Eucalyptus</em> trees were at the same stage of development  (i.e., 4 years after planting). The treatments included the first  generation (PrG) of<em>  </em><em>Eucalyptus </em>reforestation, the second generation (SeG)  regenerating after the PrG was cut, the third generation (ThG)  regenerating after the SeG, and the fourth generation (FoG) regenerating  after the ThG. An evergreen broadleaf forest with three adjacent plots was  selected as the control (CK), which was a\u00a0precursor to  the<em> Eucalyptus</em>  plantation. All the plots were located within a 5  km<sup>2</sup> area. The<em> Eucalyptus</em> species planted in these plots was a hybrid  of<em> Eucalyptus  urophylla S.T. Blake \u00d7  Eucalyptus grandis Hill ex  Maiden </em>(<em>Eucalyptus  urograndis</em>).", "keywords": ["total bacterial diversity", "soil enzymatic activities", "bacterial-fungal associations", "13. Climate action", "carbon mineralization", "SparCC network", "FOS: Earth and related environmental sciences", "15. Life on land", "Successive planting of Eucalyptus", "keystone bacterial diversity"], "contacts": [{"organization": "Chen, Lijun, Dini-Andreote, Francisco, Liu, Hongqiang, Wang, Huaxiang, Dumbrell, Alex, Wang, Zhengye, Chen, Xingyu, Chen, Fangfang, Chen, Xiaolong, Wu, Lichao, Jiang, Yuji,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.wpzgmsbtq"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.wpzgmsbtq", "name": "item", "description": "10.5061/dryad.wpzgmsbtq", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.wpzgmsbtq"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-10-11T00:00:00Z"}}, {"id": "10400.14/37827", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-31T07:05:18Z", "type": "Journal Article", "created": "2022-05-10", "title": "Short-Term Responses of Soil Microbial Communities to Changes in Air Temperature, Soil Moisture and UV Radiation", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>We analyzed the effects on a soil microbial community of short-term alterations in air temperature, soil moisture and ultraviolet radiation and assessed the role of invertebrates (species Enchytraeus crypticus) in modulating the community\u2019s response to these factors. The reference soil, Lufa 2.2, was incubated for 48 h, with and without invertebrates, under the following conditions: standard (20 \u00b0C + 50% water holding capacity (WHC)); increased air temperature (15\u201325 \u00b0C or 20\u201330 \u00b0C + 50% WHC); flood (20 \u00b0C + 75% WHC); drought (20 \u00b0C + 25% WHC); and ultraviolet radiation (UV) (20 \u00b0C + 50% WHC + UV). BIOLOG EcoPlates and 16S rDNA sequencing (Illumina) were used to assess the microbial community\u2019s physiological profile and the bacterial community\u2019s structure, respectively. The bacterial abundance (estimated by 16S rDNA qPCR) did not change. Most of the conditions led to an increase in microbial activity and a decrease in diversity. The structure of the bacterial community was particularly affected by higher air temperatures (20\u201330 \u00b0C, without E. crypticus) and floods (with E. crypticus). Effects were observed at the class, genera and OTU levels. The presence of invertebrates mostly resulted in the attenuation of the observed effects, highlighting the importance of considering microbiome\u2013invertebrate interactions. Considering future climate changes, the effects described here raise concern. This study provides fundamental knowledge to develop effective strategies to mitigate these negative outcomes. However, long-term studies integrating biotic and abiotic factors are needed.</p></article>", "keywords": ["0301 basic medicine", "Soil invertebrates", "Ultraviolet Rays", "drought", "microbial activity", "DNA", " Ribosomal", "Flood", "Article", "Quantitative PCR", "Soil", "03 medical and health sciences", "soil microbiome", "2. Zero hunger", "metagenomics", "increased temperature; drought; flood; UV exposure; microbial activity; bacterial diversity; metagenomics; quantitative PCR; soil microbiome; soil invertebrates", "Soil microbiome", "0303 health sciences", "Drought", "Bacteria", "Microbiota", "bacterial diversity", "Temperature", "Water", "flood", "15. Life on land", "soil invertebrates", "6. Clean water", "UV exposure", "Microbial activity", "Bacterial diversity", "13. Climate action", "quantitative PCR", "Metagenomics", "Increased temperature", "increased temperature"]}, "links": [{"href": "http://www.mdpi.com/2073-4425/13/5/850/pdf"}, {"href": "https://doi.org/10400.14/37827"}, {"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": "10400.14/37827", "name": "item", "description": "10400.14/37827", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10400.14/37827"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-05-10T00:00:00Z"}}, {"id": "2791089561", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-31T07:06:20Z", "type": "Journal Article", "created": "2018-02-23", "title": "Bacterial Preferences for Specific Soil Particle Size Fractions Revealed by Community Analyses", "description": "Genetic fingerprinting demonstrated in previous studies that differently sized soil particle fractions (PSFs; clay, silt, and sand with particulate organic matter (POM)) harbor microbial communities that differ in structure, functional potentials and sensitivity to environmental conditions. To elucidate whether specific bacterial or archaeal taxa exhibit preference for specific PSFs, we examined the diversity of PCR-amplified 16S rRNA genes by high-throughput sequencing using total DNA extracted from three long-term fertilization variants (unfertilized, fertilized with minerals, and fertilized with animal manure) of an agricultural loamy sand soil and their PSFs. The PSFs were obtained by gentle ultrasonic dispersion, wet sieving, and centrifugation. The abundance of bacterial taxa assigned to operational taxonomic units (OTUs) differed less than 2.7% between unfractionated soil and soil based on combined PSFs. Across the three soil variants, no archaeal OTUs, but many bacterial OTUs, the latter representing 34-56% of all amplicon sequences, showed significant preferences for specific PSFs. The sand-sized fraction with POM was the preferred site for members of Bacteroidetes and Alphaproteobacteria, while Gemmatimonadales preferred coarse silt, Actinobacteria and Nitrosospira fine silt, and Planctomycetales clay. Firmicutes were depleted in the sand-sized fraction. In contrast, archaea, which represented 0.8% of all 16S rRNA gene sequences, showed only little preference for specific PSFs. We conclude that differently sized soil particles represent distinct microenvironments that support specific bacterial taxa and that these preferences could strongly contribute to the spatial heterogeneity and bacterial diversity found in soils.", "keywords": ["2. Zero hunger", "soil bacteria", "Soil bacteria", "soil DNA", "bacterial diversity", "04 agricultural and veterinary sciences", "Soil DNA", "15. Life on land", "Microbiology", "Soil archaea", "QR1-502", "Archaeal diversity", "Bacterial diversity", "archaeal diversity", "Soil particle size fractions", "0401 agriculture", " forestry", " and fisheries", "soil particle size fractions", "soil archaea", "16S rRNA gene amplicon sequencing"]}, "links": [{"href": "https://doi.org/2791089561"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Frontiers%20in%20Microbiology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "2791089561", "name": "item", "description": "2791089561", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/2791089561"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-02-23T00:00:00Z"}}, {"id": "40341174", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-31T07:07:08Z", "type": "Journal Article", "created": "2025-05-08", "title": "Enhanced understanding of nitrogen fixing bacteria through DNA extraction with polyvinylidene fluoride membrane", "description": "Abstract           <p>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%).</p", "keywords": ["DNA", " Bacterial", "Nitrogen-Fixing Bacteria", "nifH", "Science", "Q", "R", "Article", "Nitrogen-fixing bacteria", "PVDF membrane", "Fluorocarbon Polymers", "Bacterial diversity", "Nitrogen Fixation", "Rhizosphere", "Medicine", "Polyvinyls", "Metagenomics", "Triticum", "Soil Microbiology"]}, "links": [{"href": "https://doi.org/40341174"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Scientific%20Reports", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "40341174", "name": "item", "description": "40341174", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/40341174"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2025-05-08T00:00:00Z"}}, {"id": "PMC12062204", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-31T07:08:47Z", "type": "Journal Article", "created": "2025-05-08", "title": "Enhanced understanding of nitrogen fixing bacteria through DNA extraction with polyvinylidene fluoride membrane", "description": "Abstract           <p>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%).</p", "keywords": ["DNA", " Bacterial", "Nitrogen-Fixing Bacteria", "nifH", "Science", "Q", "R", "Article", "Nitrogen-fixing bacteria", "PVDF membrane", "Fluorocarbon Polymers", "Bacterial diversity", "Nitrogen Fixation", "Rhizosphere", "Medicine", "Polyvinyls", "Metagenomics", "Triticum", "Soil Microbiology"]}, "links": [{"href": "https://doi.org/PMC12062204"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Scientific%20Reports", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "PMC12062204", "name": "item", "description": "PMC12062204", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/PMC12062204"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2025-05-08T00:00:00Z"}}, {"id": "PMC5829042", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-31T07:08:48Z", "type": "Journal Article", "created": "2018-02-23", "title": "Bacterial Preferences for Specific Soil Particle Size Fractions Revealed by Community Analyses", "description": "Genetic fingerprinting demonstrated in previous studies that differently sized soil particle fractions (PSFs; clay, silt, and sand with particulate organic matter (POM)) harbor microbial communities that differ in structure, functional potentials and sensitivity to environmental conditions. To elucidate whether specific bacterial or archaeal taxa exhibit preference for specific PSFs, we examined the diversity of PCR-amplified 16S rRNA genes by high-throughput sequencing using total DNA extracted from three long-term fertilization variants (unfertilized, fertilized with minerals, and fertilized with animal manure) of an agricultural loamy sand soil and their PSFs. The PSFs were obtained by gentle ultrasonic dispersion, wet sieving, and centrifugation. The abundance of bacterial taxa assigned to operational taxonomic units (OTUs) differed less than 2.7% between unfractionated soil and soil based on combined PSFs. Across the three soil variants, no archaeal OTUs, but many bacterial OTUs, the latter representing 34-56% of all amplicon sequences, showed significant preferences for specific PSFs. The sand-sized fraction with POM was the preferred site for members of Bacteroidetes and Alphaproteobacteria, while Gemmatimonadales preferred coarse silt, Actinobacteria and Nitrosospira fine silt, and Planctomycetales clay. Firmicutes were depleted in the sand-sized fraction. In contrast, archaea, which represented 0.8% of all 16S rRNA gene sequences, showed only little preference for specific PSFs. We conclude that differently sized soil particles represent distinct microenvironments that support specific bacterial taxa and that these preferences could strongly contribute to the spatial heterogeneity and bacterial diversity found in soils.", "keywords": ["2. Zero hunger", "soil bacteria", "Soil bacteria", "soil DNA", "bacterial diversity", "04 agricultural and veterinary sciences", "Soil DNA", "15. Life on land", "Microbiology", "Soil archaea", "QR1-502", "Archaeal diversity", "Bacterial diversity", "archaeal diversity", "Soil particle size fractions", "0401 agriculture", " forestry", " and fisheries", "soil particle size fractions", "soil archaea", "16S rRNA gene amplicon sequencing"]}, "links": [{"href": "https://doi.org/PMC5829042"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Frontiers%20in%20Microbiology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "PMC5829042", "name": "item", "description": "PMC5829042", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/PMC5829042"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-02-23T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=bacterial+diversity&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=bacterial+diversity&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": "first", "title": "items (first)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=bacterial+diversity&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=bacterial+diversity&offset=15", "hreflang": "en-US"}], "numberMatched": 15, "numberReturned": 15, "distributedFeatures": [], "timeStamp": "2026-05-31T10:01:11.379844Z"}