Control of anther cell differentiation: a teamwork of receptor-like kinases.

Sexual Plant Reproduction Pub Date : 2009-12-01 Epub Date: 2009-08-06 DOI:10.1007/s00497-009-0106-3

Dazhong Zhao

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引用次数: 53

Abstract

Successful sexual reproduction depends on normal cell differentiation during early anther development in flowering plants. The anther typically has four lobes, each of which contains highly specialized reproductive (microsporocyte) and somatic cells (epidermis, endothecium, middle layer, and tapetum). To date, six leucine-rich repeat receptor-like protein kinases (LRR-RLK) have been identified to have roles in regulation of anther cell patterning in Arabidopsis thaliana. EXCESS MICROSPOROCYTES1 (EMS1)/EXTRA SPOROGENOUS CELLS (EXS) and SOMATIC EMBRYOGENESIS RECEPTOR-LIKE KINASES1/2 (SERK1/2) signal the differentiation of the tapetum. BARELY ANY MERISTEM1/2 (BAM1/2) defines anther somatic cell layers, including the endothecium, middle layer, and tapetum. Moreover, RECEPTOR-LIKE PROTEIN KINASE2 (RPK2) is required for the differentiation of middle layer cells. In addition to process of anther cell differentiation, conserved regulation of anther cell differentiation in different plant species, this review mainly discusses how these receptor-like kinases and other regulators work together to control anther cell fate determination in Arabidopsis.

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花药细胞分化的控制:受体样激酶的协同作用。

成功的有性生殖依赖于开花植物早期花药发育过程中的正常细胞分化。花药通常有四个裂片，每个裂片包含高度特化的生殖细胞(小孢子细胞)和体细胞(表皮、内胚层、中间层和绒毡层)。迄今为止，六种富含亮氨酸的重复受体样蛋白激酶(LRR-RLK)已被确定在拟南芥花药细胞模式的调控中发挥作用。过量的小孢子细胞1 (EMS1)/额外的孢子细胞(EXS)和体细胞胚胎发生受体样激酶1/2 (SERK1/2)是绒毡层分化的信号。几乎没有MERISTEM1/2 (BAM1/2)定义花药体细胞层，包括内胚层、中间层和绒毡层。此外，受体样蛋白激酶2 (RPK2)是中间层细胞分化所必需的。除了花药细胞分化过程、花药细胞分化在不同植物物种中的保守调控外，本文主要讨论这些受体样激酶和其他调控因子是如何共同调控拟南芥花药细胞命运的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Sexual Plant Reproduction 生物-生殖生物学

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3 months