A Novel Effector Protein SsERP1 Inhibits Plant Ethylene Signaling to Promote Sclerotinia sclerotiorum Infection.

ABSTRACT: Sclerotinia sclerotiorum is one of the most devastating pathogens in Brassica napus and causes huge economic loss worldwide. Though around one hundred putative effectors have been predicted in Sclerotinia sclerotiorum genome, their functions are largely unknown. In this study, we cloned and characterized a novel effector, SsERP1 (ethylene pathway repressor protein 1), in Sclerotinia sclerotiorum. SsERP1 is a secretory protein highly expressed at the early stages of Sclerotinia sclerotiorum infection. Ectopic overexpression of SsERP1 in plant leaves promoted Sclerotinia sclerotiorum infection, and the knockout mutants of SsERP1 showed reduced pathogenicity but retained normal mycelial growth and sclerotium formation, suggesting that SsERP1 specifically contributes to the pathogenesis of Scl

SUBMITTER: Fan H 

PROVIDER: S-EPMC8537369 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature