Activity, size and structure of the nitrate reducer community in relation to land-use and fertilization regime in Madagascar

Communication orale, résumé; absent

Genetic characterization of the nitrate reducing community in French soils

International audience

La communauté nitrate-réductrice : modèle d'évaluation de l'impact du type de fertilisant et du mode de travail du sol à Madagascar

Devenir de l'azote des eaux résiduaires de féculerie après épandage sur un sol cultivé

Caractérisation de la microflore dénitrifiante des sols agricoles en lien avec leur aptitude à émettre N2O au cours de la dénitrification

Changement d'usage des terres et fonctionnement microbien : le cas du semis direct sous couverture végétale à Madagascar

National audience

Les émissions de protoxide d'azote dans différentes situations agronomiques : mécanismes en jeu, régulation et simulation à l'échelle agronomique

National audience

Influence of maize mucilage on structure and activity of the denitrifying community

International audience

La dénitrification et la production de N2O dans la rhizosphère de maïs : diversité et activité des populations bactériennes impliquées

Factors influencing spatial patterns of activity of denitrifying bacteria in a grassland soil

International audience

How agricultural practices affect the different bacterial communities involved in the denitrification process: the case of direct seeding in Madagascar

International audience

Mapping spatial patterns of denitrifiers for bridging community ecology and microbial processes along environmental gradients

International audience; While there is ample evidence that microbial processes can exhibit large variations at a field scale, very little is known about the spatial distribution of the communities mediating these processes. The objective of this study was to explore spatial patterns of size and activity of the denitrifying community, a functional guild involved in N-cycling, in a grassland field subjected to different cattle grazing regimes. We used geostatistical modeling to map the distribution of size and activity of the denitrifier community in the pasture. Size of the denitrifier community was estimated by PCR quantification of the denitrification gene copy numbers while its activity w…

Impact of fertilization, tillage and direct seeding on nitrate reducers in Madagascar

Mapping field-scale spatial distribution patterns of size and activity of the denitrifier community

International audience

Mapping spatial patterns of denitrifiers for bridging community ecology and microbial processes along environmental gradients

While there is ample evidence that microbial processes can exhibit large variations at a field scale, very little is known about the spatial distribution of the communities mediating these processes. The objective of this study was to explore spatial patterns of size and activity of the denitrifying community, a functional guild involved in N-cycling, in a grassland field subjected to different cattle grazing regimes. We used geostatistical modeling to map the distribution of size and activity of the denitrifier community in the pasture. Size of the denitrifier community was estimated by PCR quantification of the denitrification gene copy numbers while its activity was estimated by measurin…

Diversity of denitrifying community in three soils and ability to reduce nitrous oxide

International audience

Impact of fertilization and direct seeding on activity and abundance of key denitrifier communities in a tropical soil

Affiche, résumé; The aim of this work was to investigate to which extent different practices impacted on the bacterial communities involved in N2O emission.