文献类型： 外文期刊
作者： Zhang, Jian 1 ; Du, Qiang 1 ; Wu, Yugui 1 ; Shen, Mengyu 1 ; Gao, Furong 1 ; Wang, Zhilong 1 ; Xiao, Xiuwen 1 ; Tang, Wenbang 1 ; Chen, Qiuhong 1 ;
作者机构： 1.Hunan Agr Univ, Coll Agron, Changsha 410128, Peoples R China
2.Yuelushan Lab, Changsha 410128, Peoples R China
3.Hunan Prov Key Lab Rice & Rapeseed Breeding Dis Re, Changsha 410128, Peoples R China
4.Hunan Hybrid Rice Res Ctr, State Key Lab Hybrid Rice, Changsha 410125, Peoples R China
关键词：
rice;
期刊名称：PLANTS-BASEL （ 影响因子：4.1； 五年影响因子：4.5 ）
ISSN： 2223-7747
年卷期： 2025 年 14 卷 5 期
页码：
收录情况： SCI
摘要： The ubiquitination and degradation of proteins are widely involved in plant biotic and abiotic stress responses. E3 ubiquitin ligases play an important role in the ubiquitination of specific proteins. In this study, we identified the function of a U-box E3 ubiquitin ligase gene OsPUB57 in rice. Expression analyses revealed that OsPUB57 was mainly expressed in the aboveground part of rice. Drought, salt, cold, JA (jasmonic acid), PAMPs (pathogen-associated molecular patterns) or Magnaporthe oryzae treatment could significantly suppress the expression of OsPUB57 in rice. Compared with wild-type plants, OsPUB57-overexpressing plants showed a decrease in resistance to M. oryzae, while the mutant plants exhibited an enhancement of M. oryzae resistance. The expression level detection indicated that OsPUB57 negatively regulates rice blast resistance, probably by down-regulating the expression of the defense-related genes OsPR1a and OsAOS2. This study provides a candidate gene for the genetic improvement of rice blast resistance.
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