Search results for "Vegetal Biology"
showing 10 items of 1601 documents
Étude comparée du rôle des exsudats racinaires de pois (Pisum sativum) et de féverole (Vicia faba) durant les premières phases d’infection par Aphano…
2018
International audience
Leaf metabolite profiling reveals biochemical diversities within wheat genetic resources
2019
Session : Plant, food, enviromenal and microbial, Poster P-422; International audience
« PPHD » : A Platform For High Throughput Phenotyping of Plant/Plant and Plant/Microorganisms Interactions
2011
International audience
Artificial selection of rhizosphere microbial communities associated with plant resistance to leaf pathogens
2016
International audience; Artificial selection of rhizosphere microbial communities associated with plant resistance to leaf pathogens
L'orobanche rameuse. Une plante parasite dont la variabilité s'avère complexe
2013
EASPEEcolDurGEAPSICT1; National audience; L'orobanche rameuse (Phelipanche ramosa (L.) Pomel) est une plante connue pour parasiter préférentiellement la tomate dans les pays du bassin méditerra-néen, le tabac et le chanvre en Europe centrale. Mais le colza semble être un nouvel hôte préférentiel avec une augmentation du nombre de parcelles infectées en Bulgarie, Espagne, France et Italie. Pourquoi cette orobanche inquiète Une expansion massive sur colza En France, on observe une expansion massive de cette espèce dans les parcelles de colza depuis la fin des années 1990.
«Comment mieux faire fonctionner le sol ?» : le rôle des champignons, des mycorhizes et des bactéries du sol et le lien avec les pratiques agricoles
2017
SPEIPMUB; «Comment mieux faire fonctionner le sol ?» : le rôle des champignons, des mycorhizes et des bactéries du sol et le lien avec les pratiques agricoles. Journée Innovation Agronomique VIVESCIA " les couverts en interculture pour developper le sol"
A genetic and molecular approach to identify transcription factors controlling maize root adaptive response to water deficit
2022
Water stress is recognized as the most severe abiotic stress for agricultural productivity. Root traits play a key role in tolerance to water stress but have largely been neglected in selection schemes. In order to identify the maize genetic bases of the root adaptive responses to water deficit (WD), we used a MAGIC mapping population of 400 lines based on the intercrossing of 16 genotypes. The fine phenotyping of the different genotypes was performed under contrasting water supply on the French root phenotyping platform (4PMI). On the 16 founder genotypes, in addition of phenotyping, we sampled different root tissues daily over 7 days after irrigation arrest and performed RNAseq. On the ba…
Evidence of atrazine mineralization in a soil from the Nile Delta: Isolation of Arthrobacter sp. TES6, an atrazine-degrading strain
2011
International audience; The s-triazine herbicide atrazine was rapidly mineralized (i.e., about 60% of C-14-ring-labelled atrazine released as (CO2)-C-14 within 21 days) by an agricultural soil from the Nile Delta (Egypt) that had been cropped with corn and periodically treated with this herbicide. Seven strains able to degrade atrazine were isolated by enrichment cultures of this soil. DNA fingerprint and phylogenetic studies based on 165 rRNA analysis showed that the seven strains were identical and belonged to the phylogeny of the genus Arthrobacter (99% similarity with Arthrobacter sp. AD38, EU710554). One strain, designated Arthrobacter sp. strain TES6, degraded atrazine and mineralized…
Free-living amoebae in sediments from the Lascaux Cave in France
2013
The Lascaux Cave in France is an old karstic channel where the running waters are collected in a pool and pumped to the exterior. It is well-known that water bodies in the vicinity of humans are suspected to be reservoirs of amoebae and associated bacteria. In fact, the free-living amoebae Acanthamoeba astronyxis, Acanthamoeba castellanii, Acanthamoeba sp. and Hartmannella vermiformis were identified in the sediments of the cave using phylogenetic analyses and morphological traits. Lascaux Cave sediments and rock walls are wet due to a relative humidity near saturation and water condensation, and this environment and the presence of abundant bacterial communities constitute an ideal habitat…
Sulfate transporters in the plant’s response to drought and salinity: regulation and possible functions
2014
International audience; Drought and salinity are two frequently combined abiotic stresses that affect plant growth, development, and crop productivity. Sulfate, and molecules derived from this anion such as glutathione, play important roles in the intrinsic responses of plants to such abiotic stresses. Therefore, understanding how plants facing environmental constraints re-equilibrate the flux of sulfate between and within different tissues might uncover perspectives for improving tolerance against abiotic stresses. In this review, we took advantage of genomics and post-genomics resources available in Arabidopsis thaliana and in the model legume species Medicago truncatula to highlight and …