文献类型： 外文期刊

作者： Gao, Liting ¹ ; Jia, Shuzhen ¹ ; Cao, Lu ¹ ; Ma, Yingjuan ¹ ; Wang, Junling ¹ ; Lan, Di ¹ ; Guo, Guangyan ¹ ; Chai, Jianfang ² ; Bi, Caili ¹ ;

作者机构： 1.Hebei Normal Univ, Coll Life Sci, Shijiazhuang 050024, Peoples R China

2.Plant Genet Transformat Ctr Hebei Prov, Inst Biotechnol & Food Sci, Hebei Acad Agr & Forestry Sci, Shijiazhuang 050051, Peoples R China

3.Hebei Normal Univ, Coll Life Sci, 20 Rd East 2nd Ring South,Yuhua Dist, Shijiazhuang 050024, Peoples R China

关键词： F-box; TaFBA-2a; TaOPR2; Salt tolerance; JA biosynthesis

期刊名称：PLANT PHYSIOLOGY AND BIOCHEMISTRY （ 影响因子：5.437； 五年影响因子：5.731 ）

ISSN： 0981-9428

年卷期： 2022 年 182 卷

页码：

收录情况： SCI

摘要： Soil salinity is a serious problem encountered by agriculture worldwide, which will lead to many harmful effects on plant growth, development, and even crop yield. F-box protein is the core subunit of the Skp1-Cullin-F-box (SCF) complex E3 ligase and plays crucial roles in regulating the growth, development, biotic & abiotic stresses, as well as hormone signaling pathway in plants. In this study, an FBA type F-box gene TaFBA-2A was isolated from wheat (Triticum aestivum L.). This study showed that TaFBA-2A could interact with TaSKP1, and TaOPR2, the crucial enzyme involving in jasmonic acid (JA) biosynthesis. TaFBA-2A negatively regulates JA biosynthesis, probably by mediating the degradation of TaOPR2 via the ubiquitin-26S proteasome pathway. Ectopic expression of TaFBA-2A improved the salt tolerance and increased the JA responsiveness of the transgenic rice lines. In addition, some agronomic traits closely related to crop yield were significantly enhanced in the rice lines ectopic expressing TaFBA-2A. The data obtained in this study shed light on the function and mechanisms of TaFBA-2A in JA biosynthesis and the responses to salt stress and JA treatment; this study also suggested that TaFBA-2A has the potential in improving the salt tolerance and crop yield of transgenic rice plants.