{"type": "FeatureCollection", "features": [{"id": "10.1016/j.soilbio.2012.04.004", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:16:09Z", "type": "Journal Article", "created": "2012-04-23", "title": "Biochar But Not Earthworms Enhances Rice Growth Through Increased Protein Turnover", "description": "The aim of this work was to compare the effects of biochar and earthworms on rice growth and to investigate the possible interactions between both. In addition to classic macroscopic variables we also monitored some leaf-level cellular processes involved in protein turnover. Both biochar and earthworms significantly increased shoot biomass production. However, biochar had a higher effect on the number of leaves (\u00fe87%) and earthworms on leaf area (\u00fe89%). Biochar also significantly increased the leaf turnover. At the cellular level, biochar but not earthworms enhanced protein catabolism by an increase in leaf proteolytic activities. This could be related to the increased expression of three of the six genes tested related to protein catabolism, one serine protease gene OsSP2 (\u00fe24%), one aspartic acid protease gene, Oryzasin (\u00fe162%) and one cysteine protease gene OsCatB (\u00fe257%). Furthermore, biochar also enhanced the expression level of two genes linked to protein anabolism, coding for the small and large subunits of rubisco (\u00fe33% and \u00fe30%, for rbcS and rbcL, respectively), the most abundant protein in leaves. In conclusion, our data gives evidence that biochar increased rice biomass production through increased leaf protein turnover (both catabolism and anabolism) whereas earthworms also increased rice biomass production but not through changes in the rate of protein turnover. We hypothesize that earthworms increase nitrogen uptake at a low cost for the plant through a simultaneous increase in mineralization rate and root biomass, probably through the release in the soil of plant growth factors. This could allow plants to accumulate more biomass without an increase in nitrogen metabolism at the leaf level, and without having to support the consecutive energy cost that must bear plants in the biochar treatment. 2012 Elsevier Ltd. All rights reserved.", "keywords": ["0106 biological sciences", "0301 basic medicine", "earthworms", "FAUNE DU SOL", "7. Clean energy", "01 natural sciences", "03 medical and health sciences", "AZOTE", "PROTEINE", "CROISSANCE", "ETUDE COMPARATIVE", "lombriz de tierra", "2. Zero hunger", "BIOMASSE", "BIOCHAR", "biomass", "carbon", "microbiology", "MACROFAUNE", "CHARBON DE BOIS", "carbono", "RIZICULTURE", "biomasa", "oryza sativa", "METABOLISME", "FERTILISATION DU SOL", "carb\u00f3n vegetal", "LOMBRIC", "FEUILLE", "charcoal"], "contacts": [{"organization": "Kam-Rigne Laossi, Juan Andr\u00e9s Cardoso, Patrick Lavelle, Patrick Lavelle, Diana Cristina Noguera, Diana Cristina Noguera, Diana Cristina Noguera, M.H. Cruz de Carvalho, S\u00e9bastien Barot,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2012.04.004"}, {"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.2012.04.004", "name": "item", "description": "10.1016/j.soilbio.2012.04.004", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2012.04.004"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-09-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2010.03.001", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:16:07Z", "type": "Journal Article", "created": "2010-03-17", "title": "Contrasted Effect Of Biochar And Earthworms On Rice Growth And Resource Allocation In Different Soils", "description": "Abstract   Adding biochar to soils and maintaining high earthworm biomasses are potential ways to increase the fertility of tropical soils and the sustainability of crop production in the spirit of agroecology and ecological engineering. However, a thorough functional assessment of biochar effect on plant growth and resource allocations is so far missing. Moreover, earthworms and biochar increase mineral nutrient availability through an increase in mineralization and nutrient retention respectively and are likely to interact through various other mechanisms. They could thus increase plant growth synergistically. This hypothesis was tested for rice in a greenhouse experiment. Besides, the relative effects of biochar and earthworms were compared in three different soil treatments (a nutrient rich soil, a nutrient poor soil, a nutrient poor soil supplemented with fertilization). Biochar and earthworm effects on rice growth and resource allocation highly depended on soil type and were generally additive (no synergy). In the rich soil, there were both clear positive biochar and earthworm effects, while there were generally only positive earthworm effects in the poor soil, and neither earthworm nor biochar effect in the poor soil with fertilization. The analysis of earthworm and biochar effects on different plant traits and soil mineral nitrogen content, confirmed that they act through an increase in nutrient availability. However it also suggested that another mechanism, such as the release in the soil of molecules recognized as phytohormones by plants, is also involved in earthworm action. This mechanism could for example help explaining how earthworms increase rice resource allocation to roots and influence the allocation to grains.", "keywords": ["[SDE] Environmental Sciences", "330", "earthworms", "FAUNE DU SOL", "fertilidad del suelo", "630", "12. Responsible consumption", "AZOTE", "AMENDEMENT DU SOL", "CROISSANCE", "arroz", "2. Zero hunger", "BIOMASSE", "FERTILITE DU SOL", "rice", "soil fertility", "AMMONIUM", "04 agricultural and veterinary sciences", "15. Life on land", "RIZICULTURE", "6. Clean water", "oryza sativa", "13. 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