Response of salt stress resistance in highland barley (Hordeum vulgare L. var. nudum) through phenylpropane metabolic pathway

被引:4
|
作者
Xue, Zhenglian [1 ]
Wang, Bingsheng [1 ]
Qu, Changyu [1 ]
Tao, Mengdie [1 ]
Wang, Zhou [1 ]
Zhang, Guoqiang [1 ]
Zhao, Ming [1 ]
Zhao, Shiguang [1 ]
机构
[1] Anhui Polytech Univ, Coll Biol & Food Engn, Anhui Engn Lab Ind Microbiol Mol Breeding, Wuhu, Peoples R China
来源
PLOS ONE | 2023年 / 18卷 / 10期
关键词
ACCUMULATION;
D O I
10.1371/journal.pone.0286957
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Highland barley (Hordeum vulgare L. var. nudum) is a grain crop that grows on the plateau under poor and high salt conditions. Therefore, to cultivate high-quality highland barley varieties, it is necessary to study the molecular mechanism of strong resistance in highland barley, which has not been clearly explained. In this study, a high concentration of NaCl (240 mmol/L), simulating the unfavorable environment, was used to spray the treated highland barley seeds. Transcriptomic analysis revealed that the expression of more than 8,000 genes in highland barley seed cells was significantly altered, suggesting that the metabolic landscape of the cells was deeply changed under salt stress. Through the KEGG analysis, the phenylpropane metabolic pathway was significantly up-regulated under salt stress, resulting in the accumulation of polyphenols, flavonoids, and lignin, the metabolites for improving the stress resistance of highland barley seed cells, being increased 2.71, 1.22, and 1.17 times, respectively. This study discovered that the phenylpropane metabolic pathway was a significant step forward in understanding the stress resistance of highland barley, and provided new insights into the roles of molecular mechanisms in plant defense.
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页数:15
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