A pathogenesis-related protein 1 of Cucurbita moschata responds to powdery mildew infection.

ABSTRACT: Pumpkin (Cucurbita moschata Duch.) productivity is severely hindered by powdery mildew (PM) worldwide. The causative agent of pumpkin PM is Podosphaera xanthii, a biotrophic fungus. Pathogenesis-related protein 1 (PR1) homolog was previously identified from transcriptomic analysis of a PM-resistant pumpkin. Here, we investigated the effects of CmPR1 gene from pumpkin for resistance to PM. Subcellular localization assay revealed that CmPR1 is a cytoplasmic protein in plants. The expression of CmPR1 gene was strongly induced by P. xanthii inoculation at 48 h and exogenous ethylene (ET), jasmonic acid (JA) and NaCl treatments, but repressed by H₂O₂ and salicylic acid (SA) treatments. Visual disease symptoms, histological observat

SUBMITTER: Guo WL 

PROVIDER: S-EPMC10427922 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature