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 in rice blast resistance, a severe disease, was examined. The mutation of revealed its significance in () resistance and the seed setting rate in rice. In addition, weaker -induced ROS production and expression of the defense genes , , , and was observed in compared to Nipponbare (NPB); also, the jasmonic acid (JA) and gibberellin4 (GA4) content was significantly lower in than in NPB. Moreover, exhibited a phenotype featuring a reduced seed setting rate. These observations highlight the involvement of 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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| http://dx.doi.org/10.3390/plants13030348 | DOI Listing |
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