Search results for "Microbial"

Nitrous oxide production in the terrestrial environment

2011

Chapitre : 11; Terrestrial ecosystems are a major source of nitrous oxide (N2O), with soils accounting for ~70% of the atmospheric loading of this greenhouse gas. Here we provide a synthesis of current understanding of the environmental regulation of N2O production and reduction through different microbial pathways, presenting examples of where measured emissions have been related to characterizations of the underpinning microbial communities. We explore the direct and indirect influence of plants on rhizosphere N2O production, reduction and net emission, and the interactions between N2O production and methane oxidation, as examples of coupling between the C and N cycles that need to be con…

Promenade among terrestrial denitrifiers: from genetics to ecology

2011

Microbial terrestrial pathways to Nitrous Oxyde

2010

Biogeographical patterns of soil molecular microbial biomass

2011

Affiche - résumé. Session GC: Microbes in the Changing Environmenl: Global Climate Change and Soif under Human Impact; International audience; The spatial organization of soil microbial communities over large areas and the identification of environmental factors structuring their distribution have been liUle investigated. The overall objective of this study was to determine the spatial paUerning of microbial biomass in soils on wide extent and to rank the environmental fiUers most influencing this distribution, by using the French Soil Quality Monitoring Network. This network covers ail the French terrilory and soils were sampled at2,150 sites along a systematic grid sampling. The soil DNA …

Impact assessment of irrigation by treated wastewater on soil bacterial genetic structure diversity of Nabeul-Tunisia irrigated areas

2011

Affiche, résumé. Session AS: Agricullural Soils: Biodiverslly and Functloning; International audience

Contribution of bacteria to initial input and cycling of nitrogen in soils

2005

Spatial distribution of ammonia oxidizing bacteria and archaea across a 44-hectare farm related to ecosystem functioning

2011

Relationship between microbial diversity and soil organic matter turnover

2011

International audience

Developing and evaluating tools for assessing the impact of low-dose herbicide nicosulfuron on soil microbial diversity and functioning

2013

Today's conventinal agriculture still relies on the general use of pesticides. Even thought this guarantees production capabilities it also causes environmental pollution having impact on non-targeted organisms. Agricultural practices have been recognized by "The European Soil Framework Directive" as a major threat for soil biodiversity. However, without taking into consideration. recent methodological advances in microbiology, pesticide regulation at EU level relying solely on simple C and N mineralization tè-sts•. ln order to cope with this ECOFUN­-MICROBIODIV project .aim to develop and evaluate tools to estimate the impact of herbicide nicosulfuron on the function and population dynamic…

Spatial patterns of microbial communities at a soil micro-scale

2012

International audience