Characterization of the plasma membrane proteins and receptor-like kinases associated with secondary vascular differentiation in poplar.
Characterization of the plasma membrane proteins and receptor-like kinases associated with secondary vascular differentiation in poplar.
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DOI：
10.1007/s11103-011-9771-3
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发表时间：
2011-05
影响因子：
5.1
通讯作者：
Li, Laigeng
中科院分区：
文献类型：
--
作者：
Song, Dongliang;Xi, Wang;Shen, Junhui;Bi, Ting;Li, Laigeng
关键词：
质膜蛋白，特别是膜整合蛋白的组成与植物细胞的分化密切相关。次生维管分化是植物体体积增长的关键过程，它导致植物茎粗的增加。然而，很少有人知道质膜蛋白，特别是在血管分化过程中发挥作用。对白杨次生维管组织分化过程中的膜蛋白进行了蛋白质组学分析，共鉴定出226个与木质部和韧皮部组织分化有关的整合蛋白。鉴定的大多数整合蛋白是受体（55种蛋白）、转运蛋白（34种蛋白）、细胞壁形成相关蛋白（27种蛋白）或细胞内运输蛋白（17种蛋白）。发育中的血管细胞中的基因表达分析进一步表明，形成层分化涉及一组受体激酶的表达，这些受体激酶在次生血管分化期间介导一系列信号传导途径。本文提供了一个轮廓的蛋白质组成的质膜在分化次生血管组织和阐明受体激酶在次生血管发育过程中的作用。本文的在线版本（doi：10.1007/s11103-011-9771-3）包含补充材料，可供授权用户使用。
The constituents of plasma membrane proteins, particularly the integral membrane proteins, are closely associated with the differentiation of plant cells. Secondary vascular differentiation, which gives rise to the increase in plant stem diameter, is the key process by which the volume of the plant body grows. However, little is known about the plasma membrane proteins that specifically function in the vascular differentiation process. Proteomic analysis of the membrane proteins in poplar differentiating secondary vascular tissues led to the identification 226 integral proteins in differentiating xylem and phloem tissues. A majority of the integral proteins identified were receptors (55 proteins), transporters (34 proteins), cell wall formation related (27 proteins) or intracellular trafficking (17 proteins) proteins. Gene expression analysis in developing vascular cells further demonstrated that cambium differentiation involves the expression of a group of receptor kinases which mediate an array of signaling pathways during secondary vascular differentiation. This paper provides an outline of the protein composition of the plasma membrane in differentiating secondary vascular tissues and sheds light on the role of receptor kinases during secondary vascular development. The online version of this article (doi:10.1007/s11103-011-9771-3) contains supplementary material, which is available to authorized users.
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