Jingfang Dong^†, Xuezhong Li , Yamei Ma, Jianyuan Yang, Jiansong Chen, Wu Yang, Lian Zhou, Jian Wang, TiFeng Yang, Shaohong Zhang, Junliang Zhao*, Qing Liu, Lingyan 必威betways Zhou, Xiaoyuan Zhu and Bin Liu*

Frontiers 必威betways in Plant Science

Abstract

High-salinity and blast disease are two major stresses that cause dramatic yield loss in rice production. GF14 (14-3-3) genes have been reported to 必威betway中文版入口 play important role in 必威betway中文版入口 biotic and abiotic stresses in plants. However, the roles of OsGF14C remain unknown. To understand the functions and regulatory mechanisms of OsGF14C in regulating salinity tolerance and blast resistance in rice, we have conducted OsGF14C-overexpressing transgenic experiments in the present study. Our results showed that overexpression of OsGF14C enhanced salinity tolerance but reduced blast resistance in rice. The enhanced salinity tolerance is related to the reduction of methylglyoxal and Na+ uptake instead of exclusion or compartmentation and 必威betway中文版入口 the negative role of OsGF14C in blast resistance is associated with the suppression of OsGF14E, OsGF14F and PR genes. Our results together 必威betway中文版入口 with the results from the previous studies suggest that the lipoxygenase 必威betways gene LOX2 which is regulated by 必威betway中文版入口 OsGF14C may play roles in coordinating salinity tolerance and blast resistance in rice. The current 必威betways study for the first time revealed the possible roles of OsGF14C in regulating salinity tolerance and blast resistance in rice, and laid down a foundation for further functional study and crosstalk regulation between salinity and blast resistance in rice.

Keyeords:OsGF14C, salinity, blast, Na+ Uptake, Lox2, rice

附件：Overexpression of OsGF14C enhances salinity tolerance but reduces blast resistance in rice.pdf