文献类型： 外文期刊

作者： Xu, Heng-Heng ¹ ; Liu, Shu-Jun ¹ ; Song, Shun-Hua ² ; Wang, Rui-Xia ³ ; Wang, Wei-Qing ¹ ; Song, Song-Quan ¹ ;

作者机构： 1.Chinese Acad Sci, Inst Bot, Beijing 100093, Peoples R China

2.Beijing Acad Agr & Forestry Sci, Beijing Vegetable Res Ctr, Beijing 100097, Peoples R China

3.Linyi Univ, Coll Life Sci, Linyi 276005, Peoples R China

关键词： Dormancy;Dongxiang wild rice;Germination;Non-dormancy;Proteome analysis;Cultivated rice Yannong S

期刊名称：PLANT PHYSIOLOGY AND BIOCHEMISTRY （ 影响因子：4.27； 五年影响因子：4.816 ）

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收录情况： SCI

摘要： Seed germination is a complex trait which is influenced by many genetic, endogenous and environmental factors, but the key event(s) associated with seed germination are still poorly understood. In present study, the non-dormant cultivated rice Yannong S and the dormant Dongxiang wild rice seeds were used as experimental materials, we comparatively investigated the water uptake, germination time course, and the differential proteome of the effect of embryo and endosperm on germination of these two types of seeds. A total of 231 and 180 protein spots in embryo and endosperm, respectively, showed a significant change in abundance during germination. We observed that the important proteins associated with seed germination included those involved in metabolism, energy production, protein synthesis and destination, storage protein, cell growth and division, signal transduction, cell defense and rescue. The contribution of embryo and endosperm to seed germination is different. In embryo, the proteins involved in amino acid activation, sucrose cleavage, glycolysis, fermentation and protein synthesis increased; in endosperm, the proteins involved in sucrose cleavage and glycolysis decreased, and those with ATP and CoQsynthesis and proteolysis increased. Our results provide some new knowledge to understand further the mechanism of seed germination. (C) 2016 Elsevier Masson SAS. All rights reserved.