期刊
MOLECULAR PLANT PATHOLOGY
卷 21, 期 10, 页码 1287-1306出版社
WILEY
DOI: 10.1111/mpp.12978
关键词
cytokinin; LeEIX2; plant immunity; PRR; tomato
资金
- Israeli Ministry of Agriculture
- Indo-China ARO Postdoctoral Fellowship Program
Plant immunity is often defined by the immunity hormones: salicylic acid (SA), jasmonic acid (JA), and ethylene (ET). These hormones are well known for differentially regulating defence responses against pathogens. In recent years, the involvement of other plant growth hormones such as auxin, gibberellic acid, abscisic acid, and cytokinins (CKs) in biotic stresses has been recognized. Previous reports have indicated that endogenous and exogenous CK treatment can result in pathogen resistance. We show here that CK induces systemic immunity in tomato (Solanum lycopersicum), modulating cellular trafficking of the pattern recognition receptor (PRR) LeEIX2, which mediates immune responses to Xyn11 family xylanases, and promoting resistance toBotrytis cinereaandOidium neolycopersiciin an SA- and ET-dependent mechanism. CK perception within the host underlies its protective effect. Our results support the notion that CK promotes pathogen resistance by inducing immunity in the host.
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