期刊
PLANT SIGNALING & BEHAVIOR
卷 11, 期 6, 页码 -出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/15592324.2016.1181245
关键词
Arabidopsis; defense; DELLA proteins; gibberellin; jasmonic acid; pathogens; salicylic acid; transcription factor
资金
- Deutsche Forschungsgemeinschaft [BA 4769/2-1]
Phytohormones act in concert to coordinate plant growth and the response to environmental cues. Gibberellins (GAs) are growth-promoting hormones that recently emerged as modulators of plant immune signaling. By regulating the stability of DELLA proteins, GAs intersect with the signaling pathways of the classical primary defense hormones, salicylic acid (SA) and jasmonic acid (JA), thereby altering the final outcome of the immune response. DELLA proteins confer resistance to necrotrophic pathogens by potentiating JA signaling and raise the susceptibility to biotrophic pathogens by attenuating the SA pathway. Here, we show that JUB1, a core element of the GA - brassinosteroid (BR) - DELLA regulatory module, functions as a negative regulator of defense responses against Pseudomonas syringae pv. tomato DC3000 (Pst DC3000) and mediates the crosstalk between growth and immunity.
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