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Comparative proteomics of leaves found at different stem positions of maize seedlings

文献类型： 外文期刊

作者： Chen, Yi-Bo 1 ; Wang, Dan 2 ; Ge, Xuan-Liang 3 ; Zhao, Biligen-Gaowa 1 ; Wang, Xu-Chu 2 ; Wang, Bai-Chen 1 ;

作者机构： 1.Chinese Acad Sci, Key Lab Photobiol, Photosynth Res Ctr, Inst Bot, Beijing, Peoples R China

2.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Key Lab Biol & Genet Resources Trop Crops, Haikou, Hainan, Peoples R China

3.Heilongjiang Acad Agr Sci, Inst Cultivat & Tillage, Haerbin, Heilongjiang, Peoples R China

关键词： C4 photosynthesis;Leaf position;Proteomics;Two-dimensional difference gel;electrophoresis;Tandem mass spectrometry

期刊名称：JOURNAL OF PLANT PHYSIOLOGY （ 影响因子：3.549； 五年影响因子：4.164 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： To better understand the roles of leaves at different stem positions during plant development, we measured the physiological properties of leaves 1-4 on maize seedling stems, and performed a proteomics study to investigate the differences in protein expression in the four leaves using two-dimensional difference gel electrophoresis and tandem mass spectrometry in conjunction with database searching. A total of 167 significantly differentially expressed protein spots were found and identified. Of these, 35% are involved in photosynthesis. By further analysis of the data, we speculated that in leaf 1 the seedling has started to transition from a heterotroph to an autotroph, development of leaf 2 is the time at which the seedling fully transitions from a heterotroph to an autotroph, and leaf maturity was reached only with fully expanded leaves 3 and 4, although there were still some protein expression differences in the two leaves. These results suggest that the different leaves make different contributions to maize seedling growth via modulation of the expression of the photosynthetic proteins. Together, these results provide insight into the roles of the different maize leaves as the plant develops from a heterotroph to an autotroph. (C) 2016 Elsevier GmbH. All rights reserved.

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