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Drought stress impact on leaf proteome variations of faba bean (Vicia faba L.) in the Qinghai-Tibet Plateau of China

文献类型： 外文期刊

作者： Li, Ping 1 ; Zhang, Yanxia 3 ; Wu, Xuexia 1 ; Liu, Yujiao 1 ;

作者机构： 1.Qinghai Univ, State Key Lab Plateau Ecol & Agr, Xining, Qinghai, Peoples R China

2.Qinghai Acad Agr & Forestry Sci, Xining, Qinghai, Peoples R China

3.Sichuan Agr Univ, Rice Res Inst, Chengdu, Sichuan, Peoples R China

4.Minist Agr, Qinghai Res Stn Crop Gene Resource & Germplasm En, Xining, Qinghai, Peoples R China

关键词： Faba bean;Drought resistance;2-DE;Proteome;Function

期刊名称：3 BIOTECH （ 影响因子：2.406； 五年影响因子：3.203 ）

ISSN： 2190-572X

年卷期： 2018 年 8 卷

页码：

收录情况： SCI

摘要： Water scarcity is a major abiotic stress factor that strongly influences growth, development and yield of grain legumes in arid and semi-arid area of the world. Drought stress frequently occurs during the seedling stage and finally affects yield of faba bean (Vicia faba L.). However, the responses of plant leaf to drought have not been documented very well at the proteomic level. "Ga da dou" of the drought-tolerant faba bean cultivar was exposed to drought to examine the proteome changes of leaves. In this study, 2-week-old seedlings were subjected to water deficit by 7 days drought stress, whereas control plants were regularly irrigated. After withdrawing water, plants exposed to drought for 7 days and control plants at the same developmental stage were included in quantitative proteomic analysis using two-dimensional electrophoresis gels of proteins in combination with mass spectrometry. Over 300 proteins were detected by 2-DE, 50 differentially expressed proteins were detected by t test and 30 proteins were successfully identified by MALDI-TOF/TOF, in which 25 proteins were clearly downregulated and five proteins were upregulated. The quantified proteins were grouped into five functional groups, mainly regulatory proteins (46.7%), energy metabolism (23.3%), cell cytoskeleton (6.7%), other functions (20%) and unknown function (3.3%). Chitinase was upregulated under drought, suggesting that it was an important part of the plant defense system, playing an important role in stress resistance. 50S ribosomal protein was upregulated under drought, suggesting its role in protecting plants against stress by re-establishing normal protein conformations. The abundance of proteins involved in protein synthesis such as chitinase, Bet protein and glutamate-glyoxylate aminotransferase was upregulated under drought stress. These proteins could play important roles in drought tolerance and contribute to the relatively stronger drought tolerance of " Ga da dou".

  • 相关文献

[1]Structure and function of seed storage proteins in faba bean (Vicia faba L.). Liu, Yujiao,Wu, Xuexia,Hou, Wanwei,Li, Ping,Sha, Weichao,Tian, Yingying. 2017

[2]Genetic diversity analysis of faba bean (Vicia faba L.) germplasms using sodium dodecyl sulfate-polyacrylamide gel electrophoresis. Hou, W. W.,Shi, J. B.,Liu, Y. J.,Zhang, X. J.. 2015

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