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（基因）的过表达影响多种行为，导致番茄对非生物胁迫具有耐受性，并影响赤霉素和生长素信号传导。 （注：原文句子结构不完整，推测这里有个基因名称缺失，以上译文是根据补充完整后的句子进行的翻译）

Overexpression of Affects Multiple Behaviors Leading to Confer Abiotic Stresses Tolerance and Impacts Gibberellin and Auxin Signaling in Tomato.

作者信息

Habib Sidra, Waseem Muhammad, Li Ning, Yang Lu, Li Zhengguo

机构信息

School of Life Science, Chongqing University, Chongqing 400044, China.

出版信息

Int J Genomics. 2019 Jul 1;2019:4051981. doi: 10.1155/2019/4051981. eCollection 2019.

DOI:10.1155/2019/4051981
PMID:31355243
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6636567/
Abstract

Abiotic stresses remain the key environmental issues that reduce plant development and therefore affect crop production. Transcription factors, such as the GRAS family, are involved in various functions of abiotic stresses and plant growth. The GRAS family of tomato (), , is described in this study. We produced overexpressing plants to learn more about the GRAS transcription factors. Plants overexpressing (-OE) showed multiple phenotypes related to many behaviors, including plant height, root and shoot length, and flowering time. We observed that many genes in the -OE seedlings that are associated with auxin and gibberellin (GA) are downregulated and have altered sensitivity to GA/IAA. was upregulated during abiotic stresses following treatment with sodium chloride (NaCl) and D-mannitol in the wild-type (WT) tomato. Tomato plants overexpressing showed more resistance to drought and salt stress comparison with WT. Our study of in tomato demonstrates how GRAS showed an integrative role, improving resistance to abiotic stresses and enhancing gibberellin/auxin signaling through reproductive as well as vegetative processes.

摘要

非生物胁迫仍然是影响植物生长发育进而影响作物产量的关键环境问题。转录因子，如GRAS家族，参与非生物胁迫和植物生长的多种功能。本研究对番茄的GRAS家族进行了描述。我们构建了过表达GRAS的植株，以进一步了解GRAS转录因子。过表达GRAS（GRAS -OE）的植株表现出与多种性状相关的多种表型，包括株高、根长和茎长以及开花时间。我们观察到，GRAS -OE幼苗中许多与生长素和赤霉素（GA）相关的基因表达下调，并且对GA/IAA的敏感性发生了改变。在野生型（WT）番茄中，用氯化钠（NaCl）和D-甘露醇处理后，GRAS在非生物胁迫期间表达上调。与WT相比，过表达GRAS的番茄植株对干旱和盐胁迫表现出更强的抗性。我们对番茄中GRAS的研究表明，GRAS发挥了整合作用，通过生殖和营养过程提高了对非生物胁迫的抗性，并增强了赤霉素/生长素信号传导。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a26d/6636567/64bda66b5aef/IJG2019-4051981.007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a26d/6636567/002715f29a40/IJG2019-4051981.001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a26d/6636567/fe7f75e38bb3/IJG2019-4051981.002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a26d/6636567/3b40cf133e7f/IJG2019-4051981.003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a26d/6636567/a374bbdf9f4b/IJG2019-4051981.004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a26d/6636567/1d3913385dd3/IJG2019-4051981.005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a26d/6636567/71d77cf59597/IJG2019-4051981.006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a26d/6636567/64bda66b5aef/IJG2019-4051981.007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a26d/6636567/002715f29a40/IJG2019-4051981.001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a26d/6636567/fe7f75e38bb3/IJG2019-4051981.002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a26d/6636567/3b40cf133e7f/IJG2019-4051981.003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a26d/6636567/a374bbdf9f4b/IJG2019-4051981.004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a26d/6636567/1d3913385dd3/IJG2019-4051981.005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a26d/6636567/71d77cf59597/IJG2019-4051981.006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a26d/6636567/64bda66b5aef/IJG2019-4051981.007.jpg

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