A bHLH transcription activator regulates defense signaling by nucleo-cytosolic trafficking in riceFA

• 作者: Chao Yang Fanwei Meng Huan Chen Jidong Cao Jinhuan Pang Jun Liu Qiqi Zhao Zheng Qing Fu Zongyi Wang
• 来源期刊: 植物学报（英文版）
• 年，卷（期）: 2020,（10）
• 页码范围: 1552-1573
• 页数: 22页
• 语种: 英文
• DOI: 10.1111/jipb.12922

摘要

Crosstalk between plant hormone signaling pathways is vital for controlling the immune response during pathogen invasion. Salicylic acid (SA) and jas-monic acid (JA) often play important but antagonistic roles in the immune responses of higher plants. Here, we identify a basic helix-loop-helix transcription acti-vator, OsbHLH6, which confers disease resistance in rice by regulating SA and JA signaling via nucleo-cytosolic trafficking in rice (Oryza sativa). OsbHLH6 expression was upregulated during Magnaporthe oryzae infection. Transgenic rice plants overexpressing OsbHLH6 display increased JA responsive gene expression and enhanced disease susceptibility to the pathogen. Nucleus-localized OsbHLH6 activates JA signaling and suppresses SA signaling;however, the SA regulator OsNPR1 (Nonexpressor of PR genes 1) sequesters OsbHLH6 in the cytosol to alleviate its effect. Our data suggest that OsbHLH6 controls disease re-sistance by dynamically regulating SA and JA signaling.

作者信息

序号	姓名	单位	发文数	被引次数	H指数	G指数
1	Chao Yang	中国科学院微生物研究所	2	0	0.0	0.0
2	Fanwei Meng	中国科学院微生物研究所	1	0	0.0	0.0
3	Jidong Cao	中国科学院微生物研究所	1	0	0.0	0.0
4	Huan Chen	中国科学院微生物研究所	1	0	0.0	0.0
5	Jinhuan Pang	中国科学院微生物研究所	1	0	0.0	0.0
6	Qiqi Zhao	中国科学院微生物研究所	1	0	0.0	0.0
7	Zongyi Wang	中国科学院微生物研究所	1	0	0.0	0.0
8	Zheng Qing Fu	中国科学院微生物研究所	1	0	0.0	0.0
9	Jun Liu	中国科学院微生物研究所	1	0	0.0	0.0