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通过抑制表达介导气孔运动以响应干旱胁迫。

mediates stomatal movement in response to drought stress by repressing expression.

作者信息

Xu Bing-Qin, Wang Jing-Jing, Peng Yi, Huang Huang, Sun Lu-Lu, Yang Rui, Suo Lin-Na, Wang Shao-Hui, Zhao Wen-Chao

机构信息

College of Plant Science and Technology, Beijing University of Agriculture, Beijing, China.

Bei Jing Bei Nong Enterprise Management Co., Ltd., Beijing, China.

出版信息

Front Plant Sci. 2022 Jul 22;13:952758. doi: 10.3389/fpls.2022.952758. eCollection 2022.

DOI:10.3389/fpls.2022.952758
PMID:35937339
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9354244/
Abstract

Drought stress limits plant development and reproduction. Multiple mechanisms in plants are activated to respond to stress. The MYC2 transcription factor is a core regulator of the jasmonate (JA) pathway and plays a vital role in the crosstalk between abscisic acid (ABA) and JA. In this study, we found that responded to drought stress and regulated stomatal aperture in tomato (). Overexpression of repressed expression and decreased the flavonol content, increased the reactive oxygen species (ROS) content in guard cells and promoted the accumulation of JA and ABA in leaves. Additionally, silencing the gene produced a phenotype that was similar to that of the overexpressing (-OE) strain, especially in terms of stomatal dynamics and ROS levels. Finally, we confirmed that directly repressed the expression of . Our study revealed that drove stomatal closure by modulating the accumulation of flavonol and the JA and ABA contents, helping us decipher the mechanism of stomatal movement under drought stress.

摘要

干旱胁迫限制植物的生长发育和繁殖。植物会激活多种机制来应对胁迫。MYC2转录因子是茉莉酸（JA）信号通路的核心调节因子，在脱落酸（ABA）和JA的信号互作中起关键作用。在本研究中，我们发现[具体基因名称]在番茄中响应干旱胁迫并调节气孔开度。[具体基因名称]的过表达抑制了[相关基因名称]的表达，降低了黄酮醇含量，增加了保卫细胞中的活性氧（ROS）含量，并促进了叶片中JA和ABA的积累。此外，沉默[具体基因名称]基因产生的表型与过表达（-OE）株系相似，尤其是在气孔动态和ROS水平方面。最后，我们证实[具体基因名称]直接抑制了[相关基因名称]的表达。我们的研究表明，[具体基因名称]通过调节黄酮醇的积累以及JA和ABA的含量来驱动气孔关闭，有助于我们解析干旱胁迫下气孔运动的机制。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7034/9354244/250c59f88443/fpls-13-952758-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7034/9354244/b41dc371ac8e/fpls-13-952758-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7034/9354244/1eac7c74ff70/fpls-13-952758-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7034/9354244/1dc0b5d0668a/fpls-13-952758-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7034/9354244/04464457b3f3/fpls-13-952758-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7034/9354244/c7df45eefae4/fpls-13-952758-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7034/9354244/fb023abea5d5/fpls-13-952758-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7034/9354244/3917879970da/fpls-13-952758-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7034/9354244/dd61789368d8/fpls-13-952758-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7034/9354244/b8b1d885a8c1/fpls-13-952758-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7034/9354244/250c59f88443/fpls-13-952758-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7034/9354244/b41dc371ac8e/fpls-13-952758-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7034/9354244/1eac7c74ff70/fpls-13-952758-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7034/9354244/1dc0b5d0668a/fpls-13-952758-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7034/9354244/04464457b3f3/fpls-13-952758-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7034/9354244/c7df45eefae4/fpls-13-952758-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7034/9354244/fb023abea5d5/fpls-13-952758-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7034/9354244/3917879970da/fpls-13-952758-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7034/9354244/dd61789368d8/fpls-13-952758-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7034/9354244/b8b1d885a8c1/fpls-13-952758-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7034/9354244/250c59f88443/fpls-13-952758-g010.jpg

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