Functional Analysis of KPvRxLR27, a Novel Plasmopara viticola Effector from a Korean Isolate, and Its Role in Hypersensitive Response.

Plasmopara viticola causes grape downy mildew, one of the most notorious diseases of cultivated grapes that damage vineyards worldwide. The pathogen secretes various effector molecules to infect and modulate the host biological processes. In this study, we aimed to evaluate the roles of KPvRxLR27, an arginine-any amino acid-leucine-arginine (RxLR) effector isolated from P.