Search results for "RESISTANCE"

Transcriptomes of compatible and non-compatible gray mold/grapevine interactions compared in search of resistance factors

2012

National audience; Gray mold (Botrytis cinerea) causes significant annual yield and quality losses to viticulture. Comparison of transcriptomes of compatible and non-compatible interaction with Vitis vinifera cv Marselan – on harvesting stage berries or véraison stage berries, respectively – suggest the jasmonic acid pathway is activated in the former, while the salicylic acid pathway is more pronounced in the latter. In addition, in the non-compatible case, reactive oxygen species accumulation seems to be both early and strong, and some genes involved in cell-wall reinforcement are up-regulated.

Identification of QTLs controlling resistance to rust, aphid and weevil in wild peas by DArTseq SNP-based technology

2019

Trabajo presentado en la Third International Legume Society Conference ILS3 2019 (Legumes for human and planet health), celebrada en Poznan (Polonia) del 21 al 24 de mayo de 2019.

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…

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…

Occurrence of non-target-site-based resistance to ALS inhibitors in the broadleaf weed Papaver rhoeas (corn poppy).

2013

The vast majority of reported cases of resistance to ALS inhibitors in broadleaves is due to the selection of mutant, herbicide-resistant ALS alleles carrying a mutation at one of a few ALS codons that can be easily identified (ALS-based resistance). Non-ALS-based resistance (non-target-site resistance, NTSR), considered to be endowed by differences in the expression of many genes, has essentially been reported in grasses and hardly ever in broadleaves. We investigated NTSR to ALS inhibitors in poppy by pairing plants resistant to ALS inhibitors with susceptible plants and subsequently analysing the segregation of resistance in F1 families. Poppy plants resistant to ALS inhibitors were geno…

Sesquiterpenes VOCs are markers of elicitation by sulfated laminarine in grapevine

2016

International audience

Volatilomics in the vineyard

2017

SPE IPM CNRS INRA UB; National audience

Characterisation of rye-grass (Lolium sp.) transcriptome-wide response to ALS-inhibiting herbicides

2014

International audience; Non-target-site-resistance (NTSR) to herbicides is a major cause for failure in the chemical control of a number of weeds, and is especially widespread and important in grass weeds. Although several gene families have been shown to be involved in NTSR (cytochromes p450, glutathione-S-transferases, glycosyl-transferases, ABC transporters, esterases…), the genetic determinants of NTSR are still poorly known to date. NTSR is part of the response of weeds to herbicides. To unravel NTSR, it is thus of interest to firstly characterise the processes involved in herbicide stress response in grasses. For this purpose, we implemented a comparative whole-transcriptome sequencin…

Image analysis methods for assessment of H2O2 production and Plasmopara viticola development in grapevine leaves: application to the evaluation of re…

2014

Analysis of eIF4E gene sconfering resistance to Pea seed-borne mosaic virus (PSbMV) and other potyviruses in pea

2013

Pea seed-borne mosaic virus (PSbMV) belongs among the most frequent viral pathogens causing severe losses in field pea and other legumes. These losses might be prevented by growth of resistant varieties. Resistance to the common P1 strain of PSbMV isconferred by a single recessive gene (eIF4E), localized on LG VI (sbm-1 locus), while to lentil L1 strainis localized on LGII atsbm-2locus. Gene-specific single nucleotide polymorphism and co-dominant amplicon length polymorphism markers were developed. From the comparison of genotype verses phenotype for selection of resistance/susceptibility in F2 plants, there was a 26% discrepancy between the PCR and ELISA-based assays with potentially susce…