Transcription factor NAC78 cooperates with NAC78 interacting protein 6 to confer drought tolerance in rice
文献类型： 外文期刊
作者： Yu, Xiangzhen 1 ; Xie, Yunjie 1 ; Wang, Lanning 1 ; Li, Lele 1 ; Jiang, Shengfei 1 ; Zhu, Yongsheng 1 ; Xie, Hongguang 1 ; Cui, Lili 1 ; Wei, Yidong 1 ; Xiao, Yanjia 1 ; Cai, Qiuhua 1 ; Zheng, Yanmei 1 ; Chen, Liping 1 ; Xie, Huaan 1 ; Zhang, Jianfu 1 ;
作者机构： 1.Fujian Acad Agr Sci, Rice Res Inst, Fuzhou 350018, Peoples R China
2.Fujian Agr & Forestry Univ, Coll Agr, Fuzhou 350002, Peoples R China
3.State Key Lab Ecol Pest Control Fujian & Taiwan Cr, Fuzhou, Peoples R China
4.Minist Agr & Affairs, Key Lab Germplasm Innovat & Mol Breeding Hybrid Ri, Fuzhou, Peoples R China
5.Incubator Natl Key Lab Germplasm Innovat & Mol Bre, Fuzhou, Peoples R China
6.Minist Sci & Technol, Fuzhou, Peoples R China
7.Natl Rice Improvement Ctr China, Fuzhou Branch, Fuzhou, Peoples R China
8.Fujian Engn Lab Crop Mol Breeding, Fuzhou, Peoples R China
9.Fujian Key Lab Rice Mol Breeding, Fuzhou 350003, Peoples R China
期刊名称：PLANT PHYSIOLOGY （ 影响因子：6.9； 五年影响因子：7.7 ）
ISSN： 0032-0889
年卷期： 2024 年 196 卷 2 期
页码：
收录情况： SCI
摘要： NAC (NAM, ATAF1/2, and CUC2) family transcription factors are involved in several cellular processes, including responses to drought, salinity, cold, and submergence. However, whether or how certain NAC proteins regulate drought tolerance in rice (Oryza sativa) remain unclear. In this study, we show that overexpression of OsNAC78 enhanced rice resistance to drought treatment, whereas Osnac78 mutant plants were susceptible to drought stress. We further characterized the OsNAC78 interacting protein, named NAC78 interacting protein 6 (OsNACIP6), and found that it conferred rice drought tolerance. Our results demonstrate that OsNACIP6 enhanced the transcription of OsNAC78 and promoted the expression of its downstream target OsGSTU37, encoding a glutathione reductase. The ABRE4 cis-element in the promoter region of OsNACIP675-1-127 conferred significant upregulation of OsNACIP6 expression and initiated the OsNACIP6/OsNAC78-OsGSTU37 module that facilitates rice growth under drought conditions. Together, our results uncover a transcriptional module composed of OsNACIP6, OsNAC78, and OsGSTU37 and provide insights into the molecular mechanisms underlying the drought stress response in rice. A NAC family transcription factor and its cofactor positively regulate drought tolerance in rice by targeting a member of glutathione S-transferase to enhance reactive oxygen species scavenging.
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