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The Roles of Gibberellins in Regulating Leaf Development

文献类型： 外文期刊

作者： Ritonga, Faujiah Nurhasanah 1 ; Zhou, Dandan 1 ; Zhang, Yihui 1 ; Song, Runxian 4 ; Li, Cheng 1 ; Li, Jingjuan 1 ; Gao, Jianwei 1 ;

作者机构： 1.Shandong Acad Agr Sci, Inst Vegetables & Flowers, Natl Vegetable Improvement Ctr, Shandong Branch, Jinan 250100, Peoples R China

2.Padjadjaran State Univ, Grad Sch, Bandung 40132, West Java, Indonesia

3.Shandong Normal Univ, Coll Life Sci, Jinan 250100, Peoples R China

4.Northeast Forestry Univ, State Key Lab Tree Genet & Breeding, Harbin 150040, Peoples R China

关键词： bioactive; biosynthesis; crosstalk; metabolism; phytohormones

期刊名称：PLANTS-BASEL （ 影响因子：4.5； 五年影响因子：4.8 ）

ISSN：

年卷期： 2023 年 12 卷 6 期

页码：

收录情况： SCI

摘要： Plant growth and development are correlated with many aspects, including phytohormones, which have specific functions. However, the mechanism underlying the process has not been well elucidated. Gibberellins (GAs) play fundamental roles in almost every aspect of plant growth and development, including cell elongation, leaf expansion, leaf senescence, seed germination, and leafy head formation. The central genes involved in GA biosynthesis include GA20 oxidase genes (GA20oxs), GA3oxs, and GA2oxs, which correlate with bioactive GAs. The GA content and GA biosynthesis genes are affected by light, carbon availability, stresses, phytohormone crosstalk, and transcription factors (TFs) as well. However, GA is the main hormone associated with BR, ABA, SA, JA, cytokinin, and auxin, regulating a wide range of growth and developmental processes. DELLA proteins act as plant growth suppressors by inhibiting the elongation and proliferation of cells. GAs induce DELLA repressor protein degradation during the GA biosynthesis process to control several critical developmental processes by interacting with F-box, PIFS, ROS, SCLl3, and other proteins. Bioactive GA levels are inversely related to DELLA proteins, and a lack of DELLA function consequently activates GA responses. In this review, we summarized the diverse roles of GAs in plant development stages, with a focus on GA biosynthesis and signal transduction, to develop new insight and an understanding of the mechanisms underlying plant development.

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