Comparative transcriptome and metabolome analyses of cherry leaves spot disease caused by Alternaria alternata.

ABSTRACT: Alternaria alternata is a necrotrophic fungal pathogen with a broad host range that causes widespread and devastating disease in sweet cherry (Prunus avium). We selected a resistant cultivar (RC) and a susceptible cultivar (SC) of cherry and used a combined physiological, transcriptomic, and metabolomic approach to investigate the molecular mechanisms underlying the plant's resistance to A. alternata, of which little is known. We found that A. alternata infection stimulated the outbreak of reactive oxygen species (ROS) in cherry. The responses of the antioxidant enzymes and chitinase to disease were observed earlier in the RC than in the SC. Moreover, cell wall defense ability was stronger in the RC. Differential genes and metabolites involved in defense respons

SUBMITTER: Pan LY 

PROVIDER: S-EPMC9947566 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature