Quantitative Assessment of Grapevine Wood Colonization by the Dieback Fungus Eutypa lata.

ABSTRACT: Eutypa lata is a fungal pathogen causing severe dieback in vineyards worldwide. This fungus colonizes vines through pruning wounds, eventually causing a brown sectorial necrosis in wood as well as stunted vegetative growth. Several years may pass between infection and the expression of external symptoms, hindering the rapid evaluation of both grapevine cultivars susceptibility and E. lata variation in aggressiveness. We aimed to develop a rapid quantitative method for the assessment of wood colonization after inoculation of cuttings in controlled conditions. We used several grape cultivars varying in susceptibility in the vineyard and fungal isolates with different levels of aggressiveness to monitor wood colonization during a maximum period of 2 months. Re-isolation allowed

SUBMITTER: Moisy C 

PROVIDER: S-EPMC5715921 | biostudies-literature | 2017 May

REPOSITORIES: biostudies-literature