0000000000827380
AUTHOR
Antonin Douillet
Volatilomics in the vineyard
SPE IPM CNRS INRA UB; National audience
Grapevine vocs emissions triggered by elicitation –assessment of two french vineyards
International audience; Grapevine foliar volatile organic compounds (VOCs) releases are induced by elicitor applications.Their emissions have been followed along the growing season on two geographically separatedBurgundy and Bordeaux (Chardonnay and Cabernet franc cultivars, respectively) French vineyards. Inyear 2019, fortunately lacking of endogenous disease, VOCs were collected under non-destructivemode, in four hours with SBSE sensors entrapped into a confinement Teflon bag. Then the monitoringof VOCs enables to distinguish between weak (COS-OGA (Bastid©) and CuSO4) and strong elicitors(MeJA).Although monoterpene Ocimenes are constitutively present among the scent of the twovineyards, t…
Etude de l’impact d’un traitement à l’arsénite de sodium de la vigne : caractérisation des répercussions tissulaires et cellulaires induites dans le végétal,
International audience
Metabolomic and cytological approaches to better understand grapevine trunk diseases disorders
Grapevine trunk diseases (GTDs) are devastating diseases involving xylem-inhabiting fungi. Among them, Esca and Botryosphaeria dieback affect vineyards in major worldwide grape-producing areas. The causal fungi alter the woody issues and could produce toxins that disturb the plant physiology, leading to chronic or apolectic leaf symptoms. The unique effective fungicide against these diseases, sodium arsenite, is now prohibited because of toxicity. As GTDs are complex and still partly unknown, the identification of protection strategies remain a deadlock. Global and targeted approaches were therefore conducted to get new information on the impact of the diseases and sodium arsenite treatment…
Metabolomic and cytological approaches to better understand grapevine trunk diseaeses disorders
National audience