Identification of LsLAZY1 gene in Leymus secalinus and validation of its function in Arabidopsis thaliana
文献类型： 外文期刊
作者： Li, Jialin 1 ; Wang, Zenghui 2 ; Song, Chunying 3 ; Nie, Yanshun 4 ; Li, Hongmei 1 ; Kong, Mengmeng 1 ; Cong, Hanhan 5 ; Wang, Siqi 1 ; Yin, Ning 1 ; Hu, Linyue 1 ; Bermudez, Ramon Santos 1 ; He, Wenxing 1 ;
作者机构： 1.Univ Jinan, Sch Biol Sci & Technol, Jinan 250022, Peoples R China
2.Shandong Inst Pomol, Tai An 271000, Shandong, Peoples R China
3.Xilin Gol League Agr & Anim Prod Qual & Safety Mon, Xilinhot City 026000, Peoples R China
4.Fengtang Ecol Agr Technol Res & Dev Co LTD, Tai An 271000, Shandong, Peoples R China
5.Univ Jinan, Sch Informat Sci & Engn, Jinan 250022, Peoples R China
关键词： Auxin transport; Leymus secalinus; LsLAZY1; Gravity response; Root development
期刊名称：PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS （ 影响因子：3.5； 五年影响因子：3.9 ）
ISSN： 0971-5894
年卷期： 2023 年 29 卷 6 期
页码：
收录情况： SCI
摘要： Root systems anchor plants to the substrate in addition to transporting water and nutrients, playing a fundamental role in plant survival. The LAZY1 gene mediates gravity signal transduction and participates in root and shoot development and auxin flow in many plants. In this study, a regulator, LsLAZY1, was identified from Leymus secalinus based on previous transcriptome data. The conserved domain and evolutionary relationship were further analyzed comprehensively. The role of LsLAZY1 in root development was investigated by genetic transformation and associated gravity response and phototropism assay. Subcellular localization showed that LsLAZY1 was localized in the nucleus. LsLAZY1 overexpression in Arabidopsis thaliana (Col-0) increased the length of the primary roots (PRs) and the number of lateral roots (LRs) compared to Col-0. Furthermore, 35S:LsLAZY1 transgenic seedlings affected auxin transport and showed a stronger gravitational and phototropic responses. It also promoted auxin accumulation at the root tips. These results indicated that LsLAZY1 affects root development and auxin transport.
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