数字农科院2.0

Insights into salicylic acid responses in cucumber (Cucumis sativus L.) cotyledons based on a comparative proteomic analysis

文献类型： 外文期刊

作者： Hao, J. H.;Dong, C. J.;Zhang, Z. G.;Wang, X. L.;Shang, Q. M.;Hao, J. H.;Dong, C. J.;Zhang, Z. G.;Wang, X. L.;Shang, Q. M.

作者机构：

关键词： Cucumber (Cucumis sativus L.);Proteome;Salicylic acid;Protein interaction network

期刊名称： PLANT SCIENCE

ISSN： 0168-9452

年卷期： 2012 年 187 卷

页码：

收录情况： SCI

摘要： To investigate the response of cucumber seedlings to exogenous salicylic acid (SA) and gain a better understanding of SA action mechanism, we generated a proteomic profile of cucumber (Cucumis sativus L) cotyledons treated with exogenous SA. Analysis of 1500 protein spots from each gel revealed 63 differentially expressed proteins, 59 of which were identified successfully. Of the identified proteins, 97% matched cucumber proteins using a whole cucumber protein database based on the newly completed genome established by our laboratory. The identified proteins were involved in various cellular responses and metabolic processes, including antioxidative reactions, cell defense, photosynthesis, carbohydrate metabolism, respiration and energy homeostasis, protein folding and biosynthesis. The two largest functional categories included proteins involved in antioxidative reactions (23.7%) and photosynthesis (18.6%). Furthermore, the SA-responsive protein interaction network revealed 13 key proteins, suggesting that the expression changes of these proteins could be critical for SA-induced resistance. An analysis of these changes suggested that SA-induced resistance and seedling growth might be regulated in part through pathways involving antioxidative reactions and photosynthesis. (C) 2012 Elsevier Ireland Ltd. All rights reserved.

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