Affiliation:
1. Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, China Agricultural University , Beijing , China
Abstract
Abstract
Gray mold caused by the necrotrophic fungal pathogen Botrytis cinerea is one of the most destructive diseases in rose (Rosa spp.). Rose infection by B. cinerea leads to severe economic losses due to necrosis, tissue collapse, and rot. In rose, cytokinins (CKs) positively regulate a defense response to B. cinerea, but little is known about the underlying molecular mechanisms. Here, we characterized two ethylene/jasmonic acid-regulated transcription factors, RhEFR005 and RhCCCH12, that bind to the promoter region of PATHOGENESIS-RELATED 10.1 (RhPR10.1) and promote its transcription, leading to decreased susceptibility to B. cinerea. The RhEFR005/RhCCCH12–RhPR10.1 module regulated cytokinin content in rose, and the susceptibility of RhEFR005-, RhCCCH12-, and RhPR10.1-silenced rose petals can be rescued by exogenous CK. In summary, our results reveal that the RhERF005/RhCCCH12–RhPR10.1 module regulates the CK-induced defense response of rose to B. cinerea.
Funder
National Natural Science Foundation of China
The National Key Research and Development Program of China, National Key Research and Development Project
The Construction of Beijing Science and Technology Innovation and Service Capacity in Top Subjects
China Postdoctoral Science Foundation
Publisher
Oxford University Press (OUP)
Cited by
2 articles.
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