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SiYGL2参与调控柳枝稷叶片衰老和光系统II效率

SiYGL2 Is Involved in the Regulation of Leaf Senescence and Photosystem II Efficiency in (L.) P. Beauv.

作者信息

Zhang Shuo, Zhi Hui, Li Wen, Shan Jianguo, Tang Chanjuan, Jia Guanqing, Tang Sha, Diao Xianmin

机构信息

Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China.

出版信息

Front Plant Sci. 2018 Sep 4;9:1308. doi: 10.3389/fpls.2018.01308. eCollection 2018.

DOI:10.3389/fpls.2018.01308
PMID:30233633
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6131628/
Abstract

A yellow-green leaf mutant was isolated from EMS-mutagenized lines of variety Yugu1. Map-based cloning revealed the mutant gene is a homolog of . EGY1 (ethylene-dependent gravitropism-deficient and yellow-green 1) is an ATP-independent metalloprotease (MP) that is required for chloroplast development, photosystem protein accumulation, hypocotyl gravitropism, leaf senescence, and ABA signal response in . However, the function of EGY1 in monocotyledonous C plants has not yet been described. The mutant is phenotypically characterized by chlorotic organs, premature senescence, and damaged PS II function. Sequence comparisons of the AtEGY1 and SiYGL2 proteins reveals the potential for SiYGL2 to encode a partially functional protein. Phenotypic characterization and gene expression analysis suggested that SiYGL2 participates in the regulation of chlorophyll content, leaf senescence progression, and PS II function. Additionally, our research will contribute to further characterization of the mechanisms regulating leaf senescence and photosynthesis in , and in C plants in general.

摘要

从豫谷1号品种的EMS诱变株系中分离出一个黄绿叶片突变体。基于图谱的克隆显示，该突变基因是一个……的同源基因。EGY1（乙烯依赖型重力向性缺陷和黄绿1）是一种不依赖ATP的金属蛋白酶（MP），它是叶绿体发育、光系统蛋白积累、下胚轴重力向性、叶片衰老和ABA信号响应所必需的。然而，EGY1在单子叶C植物中的功能尚未见报道。该突变体的表型特征为器官黄化、早衰和PS II功能受损。AtEGY1和SiYGL2蛋白的序列比较表明，SiYGL2有可能编码一种部分功能的蛋白。表型特征和基因表达分析表明，SiYGL2参与叶绿素含量、叶片衰老进程和PS II功能的调控。此外，我们的研究将有助于进一步阐明谷子以及一般C植物中叶片衰老和光合作用调控机制的特征。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3094/6131628/b9dac7c8050b/fpls-09-01308-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3094/6131628/6c6b370dcae6/fpls-09-01308-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3094/6131628/7d9da7f326aa/fpls-09-01308-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3094/6131628/ecce98a43522/fpls-09-01308-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3094/6131628/81409f68ef7b/fpls-09-01308-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3094/6131628/b66f23e239b5/fpls-09-01308-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3094/6131628/2174dca54d42/fpls-09-01308-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3094/6131628/18bd55d7b16b/fpls-09-01308-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3094/6131628/47142253e57c/fpls-09-01308-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3094/6131628/5ade44ed47c2/fpls-09-01308-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3094/6131628/b9dac7c8050b/fpls-09-01308-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3094/6131628/6c6b370dcae6/fpls-09-01308-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3094/6131628/7d9da7f326aa/fpls-09-01308-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3094/6131628/ecce98a43522/fpls-09-01308-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3094/6131628/81409f68ef7b/fpls-09-01308-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3094/6131628/b66f23e239b5/fpls-09-01308-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3094/6131628/2174dca54d42/fpls-09-01308-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3094/6131628/18bd55d7b16b/fpls-09-01308-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3094/6131628/47142253e57c/fpls-09-01308-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3094/6131628/5ade44ed47c2/fpls-09-01308-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3094/6131628/b9dac7c8050b/fpls-09-01308-g010.jpg

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