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OsJAZ4 Fine-Tunes Rice Blast Resistance and Yield Traits.
- Source :
- Plants (2223-7747); Feb2024, Vol. 13 Issue 3, p348, 15p
- Publication Year :
- 2024
-
Abstract
- 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. [ABSTRACT FROM AUTHOR]
- Subjects :
- RICE blast disease
PYRICULARIA oryzae
RATE setting
JASMONIC acid
PLANT growth
Subjects
Details
- Language :
- English
- ISSN :
- 22237747
- Volume :
- 13
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- Plants (2223-7747)
- Publication Type :
- Academic Journal
- Accession number :
- 175370212
- Full Text :
- https://doi.org/10.3390/plants13030348