MES7 Modulates Seed Germination via Regulating Salicylic Acid Content in Arabidopsis.

MES7 Modulates Seed Germination via Regulating Salicylic Acid Content in Arabidopsis.
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MES7 通过调节拟南芥中的水杨酸含量来调节种子萌发

DOI:
10.3390/plants10050903
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发表时间:
2021-04-30
期刊:
Plants (Basel, Switzerland)
影响因子:
--
通讯作者:
Zhang X
Zhang X
中科院分区:
其他
文献类型:
--
作者:
Gao W;Liu Y;Huang J;Chen Y;Chen C;Lu L;Zhao H;Men S;Zhang X

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种子萌发是被子植物的重要过渡阶段,种子对不同的环境条件非常敏感。虽然种子萌发受水杨酸和其他激素的调控,但这些调控的分子机制仍然是一个谜。在这项研究中,我们测定了SA甲基酯酶(MES)家族基因在种子萌发过程中的表达。我们发现,摄取种子后,MES7的表达显著降低,MES7功能障碍导致SA含量降低。此外,MES7在正常和盐胁迫条件下分别降低和促进种子萌发。SA的施用可以恢复mes7突变体在不同条件下的种子萌发缺陷。综上所述,我们的观察发现MeSA水解酶MES7在正常和非生物胁迫条件下通过改变SA滴度来调节种子萌发。
Seed germination is an important phase transitional period of angiosperm plants during which seeds are highly sensitive to different environmental conditions. Although seed germination is under the regulation of salicylic acid (SA) and other hormones, the molecular mechanism underlying these regulations remains mysterious. In this study, we determined the expression of SA methyl esterase (MES) family genes during seed germination. We found that MES7 expression decreases significantly in imbibed seeds, and the dysfunction of MES7 decreases SA content. Furthermore, MES7 reduces and promotes seed germination under normal and salt stress conditions, respectively. The application of SA restores the seed germination deficiencies of mes7 mutants under different conditions. Taking together, our observations uncover a MeSA hydrolytic enzyme, MES7, regulates seed germination via altering SA titer under normal and abiotic stress conditions.
DOI: 10.1038/s41598-018-32204-9
发表时间: 2018-09-19
期刊: Scientific reports
影响因子: 4.6
作者:
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发表时间: 2010-01-01
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