OsJAZ4 Fine-Tunes Rice Blast Resistance and Yield Traits

文献类型: 外文期刊

第一作者: Zhang, Mingfeng

作者: Zhang, Mingfeng;Luo, Xiao;Zhang, Min;Deng, Huafeng;Xing, Junjie;Zhang, Mingfeng;Luo, Xiao;Zhang, Min;Peng, Zhirong;Deng, Huafeng;Xing, Junjie;He, Wei

作者机构:

关键词: JAZ; jasmonic acid; rice; rice blast; gibberellin; plant immunity

期刊名称:PLANTS-BASEL ( 影响因子:4.5; 五年影响因子:4.8 )

ISSN: 2223-7747

年卷期: 2024 年 13 卷 3 期

页码:

收录情况: SCI

摘要: JAZ proteins function as transcriptional regulators that form a jasmonic acid-isoleucine (JA-Ile) receptor complex with coronatine insensitive 1 (COI1) and regulate plant growth and development. These proteins also act as key mediators in signal transduction pathways that activate the defense-related genes. Herein, the role of OsJAZ4 in rice blast resistance, a severe disease, was examined. The mutation of OsJAZ4 revealed its significance in Magnaporthe oryzae (M. oryzae) resistance and the seed setting rate in rice. In addition, weaker M. oryzae-induced ROS production and expression of the defense genes OsO4g10010, OsWRKY45, OsNAC4, and OsPR3 was observed in osjaz4 compared to Nipponbare (NPB); also, the jasmonic acid (JA) and gibberellin4 (GA4) content was significantly lower in osjaz4 than in NPB. Moreover, osjaz4 exhibited a phenotype featuring a reduced seed setting rate. These observations highlight the involvement of OsJAZ4 in the regulation of JA and GA4 content, playing a positive role in regulating the rice blast resistance and seed setting rate.

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