GhHB14_D10 and GhREV_D5, two HD-ZIP III transcription factors, play a regulatory role in cotton fiber secondary cell wall biosynthesis

文献类型： 外文期刊

第一作者： Li, Shuaijie

作者： Li, Shuaijie;Qanmber, Ghulam;Feng, Mengru;Yang, Zuoren;Zhang, Jie;Yu, Mengli;Hussain, Ghulam;Yang, Zuoren;Zhang, Jie;Wang, Yichen;Yang, Zuoren

作者机构：

关键词： Cotton (Gossypium hirsutum) fiber; Secondary cell wall; Cellulose; HD-ZIP III; Ectopic overexpression; Silencing

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： 2024 年 43 卷 3 期

页码：

收录情况： SCI

摘要： Cotton serves as an important source of natural fiber, and the biosynthesis of the secondary cell wall plays a pivotal role in determining cotton fiber quality. Nevertheless, the intricacies of this mechanism in cotton fiber remain insufficiently elucidated. This study investigates the functional roles of GhHB14_D10 and GhREV_D5, two HD-ZIP III transcription factors, in secondary cell wall biosynthesis in cotton fibers. Both GhHB14_D10 and GhREV_D5 were found to be localized in the nucleus with transcriptional activation activity. Ectopic overexpression of GhHB14_D10 and GhREV_D5 in Arabidopsis resulted in changed xylem differentiation, secondary cell wall deposition, and expression of genes related to the secondary cell wall. Silencing of GhHB14_D10 and GhREV_D5 in cotton led to enhanced fiber length, reduced cell wall thickness, cellulose contents and expression of secondary cell wall-related genes. Moreover, GhHB14_D10's direct interaction with GhREV_D5, and transcriptional regulation of cellulose biosynthesis genes GhCesA4-4 and GhCesA7-2 revealed their collaborative roles in secondary cell wall during cotton fiber development. Overall, these results shed light on the roles of GhHB14_D10 and GhREV_D5 in secondary cell wall biosynthesis, offering a strategy for the genetic improvement of cotton fiber quality.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序