Search results for "Vegetal Biology"
showing 10 items of 1601 documents
Microcosm assessment of the dissipation and soil microbial ecotoxicity of chlorpyrifos and tebuconazole using standardized advanced molecular tools
2014
International audience
Qualité du Sol - Méthode pour extraire directement l'ADN d'échantillons de sol (Norme française - internationale)
2012
La présente Norme internationale spécifie une méthode pour extraire directement l'ADN d'échantillons de sol en vue d'analyser la structure globale et l'abondance des communautés microbiennes du sol en utilisant des techniques de PCR. Cette méthode est principalement destinée aux sols agricoles et forestiers. Cette méthode peut ne pas être appropriée aux sols riches en matières organiques (par exemple sols de tourbières) ou aux sols très pollués par des polluants organiques ou des métaux lourds. L'extraction directe de l'ADN d'échantillons de sol fournit des informations précieuses sur l'abondance et la structure des communautés microbiennes qui sont des paramètres clés pour estimer la biodi…
Cropping systems for driving biological regulation of weeds. A simulation study of seed predation by carabids
2018
International audience; Weed seed predation by carabid beetles (Coleoptera, Carabidae) may contribute to weed control in crop fields but to date, evidence of weed regulation by carabids is scarce. Predation rates are driven by several factors (crop management techniques, habitat quality, pedoclimate, and carabids’ seasonal dynamics). Models are needed to evaluate the impact of weed seed predation on multi-annual weed dynamics, and thus on crop production and weed biodiversity. We developed a predation model which was added to an existing weed dynamics model (FlorSys, Colbach et al., 2014). The model was built from available literature and experimental data. It simulates the effects on daily…
Changing agricultural practices modify the species and trait composition of the weed flora. A simulation study using a cropping system model
2012
International audience
Consequences of gene flow between oilseed rape and wild radish
2013
International audience; Gene flow and introgression from crops to wild species can modify the adaptive potential and weediness of arable-land plant species. It gained recent importance with the release of genetically modified (GM) crops because of the risk of transfer of herbicide-resistance genes to related weeds. It is also a permanent possibility that could have occurred in the past with any conventional variety. In order to investigate this “normal” phenomenon and its impact, we developed three approaches in the framework of the study of gene flow between oilseed rape (Brassica napus) and wild radish (Raphanus raphanistrum). First, we compared the growth and reproduction of progeny of a…
Disentangling the complexity and diversity of crosstalks between S and other mineral nutrients in cultivated plants
2018
International audience
Application of soil bioindicators for risk assessment, monitoring and soil characterization in contamined soils. Results from the French national "Bi…
2013
EA GenoSol IPM CT?; International audience
Temporal dynamics of soil bacterial communities at a landscape scale: dependence to soil properties and agricultural practices.
2019
International audience; Soil microbial communities play a major role in agricultural functions and are an efficient indicator to evaluate the impacts of agricultural practices on soils. Studies on wide scales ranging from landscape to countries demonstrated that soil microbial communities were heterogeneously distributed in space under the dependence of soil properties (e.g. pH, soil texture, Organic matter Content) and agricultural practices. However, temporal dynamics of soil microbial communities at a landscape scale still need to be documented in order to go further in evaluating the sustainability of agricultural practices. In this extensive monitoring study, we focused on landscape dy…
Étude de la régulation des calmodulines de Nicotiana tabacum par le monoxyde d’azote
2014
Rapport de stage de Master II R SPE IPM; Master
Les protéines S-nitrosylées lors des réponses de défense des plantes. Cas de la protéine CDC48 et de l’EPSP Synthase
2012
Rapport de stage de Master 2 Recherche en Biochimie Biologie Cellulaire et Moléculaire (BBCM) SPE IPM CT non renseigné car non soutenu par INRA; Master