文献类型： 外文期刊
作者： Guo, Pengyu 1 ; Yang, Qingling 1 ; Wang, Yunshu 1 ; Yang, Zhijie 1 ; Xie, Qiaoli 1 ; Chen, Guoping 1 ; Chen, Xuqing 2 ; Hu, Zongli 1 ;
作者机构： 1.Chongqing Univ, Bioengn Coll, Lab Mol Biol Tomato, Room 521,Campus B,174 Shapingba Main St, Chongqing 400044, Peoples R China
2.Beijing Acad Agr & Forestry Sci, Inst Grassland Flowers & Ecol, 11 Shuguanghuayuan Middle Rd, Beijing 100097, Peoples R China
关键词： Cell development; Plant morphology; RNA-seq; SlPRE3; Solanum lycopersicum
期刊名称：PLANT CELL REPORTS （ 影响因子：6.2； 五年影响因子：5.9 ）
ISSN： 0721-7714
年卷期： 2023 年
页码：
收录情况： SCI
摘要： Basic helix-loop-helix (bHLH) transcription factors play crucial roles as regulators in plant growth and development. In this study, we isolated and characterized SlPRE3, an atypical bHLH transcription factor gene. SlPRE3 exhibited predominant expression in the root and moderate expression in the senescent leaves. Comparative analysis with the wild type revealed significant differences in plant morphology in the 35S:SlPRE3 lines. These differences included increased internode length, rolling leaves with reduced chlorophyll accumulation, and elongated yet fewer adventitious roots. Additionally, 35S:SlPRE3 lines displayed elevated levels of GA(3) (gibberellin A3) and reduced starch accumulation. Furthermore, utilizing the Y2H (Yeast two-hybrid) and the BiFC (Bimolecular Fluorescent Complimentary) techniques, we identified physical interactions between SlPRE3 and SlAIF1 (ATBS1-interacting factor 1)/SlAIF2 (ATBS1-interacting factor 2)/SlPAR1 (PHYTOCHROME RAPIDLY REGULATED 1)/SlIBH1 (ILI1-binding bHLH 1). RNA-seq analysis of root tissues revealed significant alterations in transcript levels of genes involved in gibberellin metabolism and signal transduction, cell expansion, and root development. In summary, our study sheds light on the crucial regulatory role of SlPRE3 in determining plant morphology and root development.
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