Search results for "Soil"

showing 10 items of 3493 documents

Is soil fauna an important driver of the structure and activities of denitrifier communities in tropical soils?

2007

International audience

[SDV] Life Sciences [q-bio][SDE] Environmental Sciences[SDV]Life Sciences [q-bio][SDE]Environmental Sciencestropical soildenitrifier communitysoil faunaComputingMilieux_MISCELLANEOUS
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Soil as support of biodiversity and functions

2015

Chapitre 11 Section 3 EA SPE EcolDur GenoSol; The soil is a major reservoir of biological diversity on our planet. It also shelters numerous biological and ecological processes and therefore contributes to the production of a considerable number of ecosystem services. Among the ecological, social and economic services identified, the role of soil as a reservoir of diversity has now been well established, along with its role in nutrient cycling, supporting primary productivity, pollution removal and storing carbon. Since the development of industrialization, urbanization and agriculture, soils have been subjected to numerous variations in environmental conditions, which have resulted in modi…

[SDV] Life Sciences [q-bio][SDE] Environmental Sciences[SDV]Life Sciences [q-bio]benefit[SDE]Environmental Sciences[SDV.BV]Life Sciences [q-bio]/Vegetal Biology[SDV.BV] Life Sciences [q-bio]/Vegetal Biologysoil carbonsciencemanagementpolicy
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Direct Soil DNA Extraction from Soil: toward an ISO standard

2009

[SDV] Life Sciences [q-bio][SDE] Environmental Sciences[SDV]Life Sciences [q-bio]direct extraction[SDE]Environmental Sciencesstandardisodnasoil
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Relative abundance of the membrane bound and periplasmic nitrate reductase in the environment

2007

[SDV] Life Sciences [q-bio][SDE] Environmental Sciences[SDV]Life Sciences [q-bio]membrane bound[SDE]Environmental Sciencesenvironmentperiplasmic nitrate reductasesoil
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Spatial patterns of microbial communities at a soil micro-scale

2012

International audience

[SDV] Life Sciences [q-bio][SDE] Environmental Sciences[SDV]Life Sciences [q-bio]microbial communitie[SDE]Environmental Sciencesspatial pattern[SDV.BV]Life Sciences [q-bio]/Vegetal Biology[SDV.BV] Life Sciences [q-bio]/Vegetal Biologysoil micro-scaleComputingMilieux_MISCELLANEOUS
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Use of functional traits to study microbial diversity

2012

Microbial communities have a central role in many ecosystem functions such as biogeochemical cycling, filtering and climate regulation. However, while functional trait-based approaches are commonly used for at least two decades in microbiology, most microbial ecology studies are still carried out with the rRNA genes. This talk will highlight the advantages of trait-based approaches for studying microbial diversity and its relationship with ecosystem functions. For this purpose, denitrification, a microbial process involved in N-cycling, was selected as a model functional trait. Using both naturally assembled and artificially manipulated communities, we will show how the diversity of the den…

[SDV] Life Sciences [q-bio][SDE] Environmental Sciences[SDV]Life Sciences [q-bio]microbial diversity[SDE]Environmental Sciences[SDV.BV]Life Sciences [q-bio]/Vegetal Biologymicrobial communities[SDV.BV] Life Sciences [q-bio]/Vegetal Biologysoil
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Technosols to reclaim industrial wastelands: depth distribution of abundance and activity of N-cycling microbial communities

2012

International audience; Construction of Technosols through assemblage of treated soil and recycled wastes is an innovative option for the restoration of degraded lands and re-use of industrial wastes. Recent studies have evidenced that Technosols could support soil functions such as primary production but the knowledge about other ecosystemic services, such as nutrient cycling, is limited. In this work, we investigated the abundance and the activity of microbial communities involved in N-cycling in different horizons (0–15, 15–35, 35–70 cm) of two types of Technosols constructed to reclaim an industrial wasteland. The estimation by real-time PCR of the abundances of the different microbial …

[SDV] Life Sciences [q-bio][SDE] Environmental Sciencesammonia-oxidationdenitrificationcontaminated soil[SDV]Life Sciences [q-bio]soil depthquantitative PCR[SDE]Environmental Sciences[SDV.BV]Life Sciences [q-bio]/Vegetal Biology[SDV.BV] Life Sciences [q-bio]/Vegetal Biologynitrification
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Les sols et la résistance aux antibiotiques

2018

National audience; Les sols renferment des communautés de microorganismes très diversifiées et très abondantes (jusqu’à 1010 bactéries par gramme de sol). La production d’antibiotiques et la résistance aux antibiotiques est un des mécanismes d’interaction entre microorganismes des sols. L’antibiose par production d’antibiotique est un mécanisme très ancien utilisé par les bactéries et les champignons pour limiter le développement de bactéries compétitrices. Les sols sont donc un réservoir potentiel de bactéries résistantes aux antibiotiques (BRA) et de gènes de résistance aux antibiotiques (GRA). Ce pool de gènes de résistance des sols est appelé le résistome des sols, il constitue un réser…

[SDV] Life Sciences [q-bio][SDE] Environmental Sciencesantibiotic resistance[SDV]Life Sciences [q-bio]multistress[SDE]Environmental Scienceshuman pathogen[SDV.BV]Life Sciences [q-bio]/Vegetal Biology[SDV.BV] Life Sciences [q-bio]/Vegetal Biologydose/responsebacteriasoil
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Survie et devenir des bactéries résistantes aux antibiotiques dans le sol et les systèmes de culture

2018

National audience; Les sols abritent des communautés de microorganismes extrêmement diversifiées et très abondantes (jusqu’à 1010 bactéries par gramme de sol). La production d’antibiotiques et la résistance aux antibiotiques est un des mécanismes d’interaction entre microorganismes de l’environnement et des sols en particulier. L’antibiose par production d’antibiotique est un mécanisme très ancien utilisé par les bactéries et les champignons pour limiter le développement de bactéries compétitrices. Les sols sont donc un réservoir potentiel de bactéries résistantes aux antibiotiques (BRA) et de gènes de résistance aux antibiotiques (GRA). Ce pool de gènes de résistance des sols est appelé le…

[SDV] Life Sciences [q-bio][SDE] Environmental Sciencesantibiotic resistance[SDV]Life Sciences [q-bio]multistress[SDE]Environmental Scienceshuman pathogen[SDV.BV]Life Sciences [q-bio]/Vegetal Biology[SDV.BV] Life Sciences [q-bio]/Vegetal Biologydose/responsebacteriasoil
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Do tropical soil engineer stimulate the bacterial communities link to N2O emission?

2009

National audience

[SDV] Life Sciences [q-bio][SDE] Environmental Sciencesbacterial communitie[SDV]Life Sciences [q-bio][SDE]Environmental Sciencestropical soilComputingMilieux_MISCELLANEOUSN2O emission
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