WSL9Encodes an HNH Endonuclease Domain-Containing Protein that Is Essential for Early Chloroplast Development in Rice

文献类型： 外文期刊

第一作者： Zhu, Xingjie

作者： Zhu, Xingjie;Mou, Changling;Zhang, Fulin;Huang, Yunshuai;Yang, Chunyan;Ji, Jingli;Liu, Xi;Cao, Penghui;Thanhliem Nguyen;Lan, Jie;Zhou, Chunlei;Liu, Shijia;Jiang, Ling;Wan, Jianmin;Thanhliem Nguyen;Zhou, Chunlei;Zhou, Chunlei;Wan, Jianmin

作者机构：

关键词： Oryza sativa; Chloroplasts; RNA splicing

期刊名称：RICE （ 影响因子：4.783； 五年影响因子：5.23 ）

ISSN： 1939-8425

年卷期： 2020 年 13 卷 1 期

页码：

收录情况： SCI

摘要： Background The plant chloroplast is essential for photosynthesis and other cellular processes, but an understanding of the biological mechanisms of plant chloroplast development are incomplete. Results A new temperature-sensitivewhite stripe leaf 9(wsl9)rice mutant is described. The mutant develops white stripes during early leaf development, but becomes green after the three-leaf stage under field conditions. Thewsl9mutant was albinic when grown at low temperature. Gene mapping of theWSL9locus, together with complementation tests indicated thatWSL9encodes a novel protein with an HNH domain.WSL9was expressed in various tissues. Under low temperature, thewsl9mutation caused defects in splicing ofrpl2, but increased the editing efficiency ofrpoB.Expression levels of plastid genome-encoded genes, which are transcribed by plastid-coded RNA polymerase (PEP), chloroplast development genes and photosynthesis-related genes were altered in thewsl9mutant. Conclusion WSL9encodes an HNH endonuclease domain-containing protein that is essential for early chloroplast development. Our study provides opportunities for further research on regulatory mechanisms of chloroplast development in rice.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序