Annexin5 is essential for pollen development in Arabidopsis.
Annexin5 is essential for pollen development in Arabidopsis.
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DOI：
10.1093/mp/sst171
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发表时间：
2014-04
期刊：
影响因子：
27.5
通讯作者：
Jingen Zhu;Shunjie Yuan;G. Wei;Dong Qian;Xiaorong Wu;Honglei Jia;Mengyuan Gui;Wenzhe Liu;
中科院分区：
文献类型：
--
作者：
Jingen Zhu;Shunjie Yuan;G. Wei;Dong Qian;Xiaorong Wu;Honglei Jia;Mengyuan Gui;Wenzhe Liu;
花粉发育是由小孢子产生成熟花粉粒的减数分裂后过程，是研究植物生殖、细胞分化、细胞命运决定、信号转导、膜转运、融合和极性生长等重要生理过程的理想模型。花粉发育调控是一个复杂的生物学过程，对开花植物有性生殖至关重要（Yamamoto et al., 2003; Durbarry et al., 2005; Twell, 2011；张et al., 2013）。膜联蛋白家族是一类能够以依赖Ca~（2+）的方式与膜、磷脂和肌动蛋白结合的蛋白质。这个家族的成员共享一种进化上保守的结构，这种结构可以在多种真核细胞中发现（Gerke和Moss, 2002； Moss和Morgan, 2004； Gerke等人，2005）。近年来，从许多不同植物中分离出了膜联蛋白，并对其功能进行了研究。与动物中的膜联蛋白一样，植物中的膜联蛋白也保留了蛋白家族的功能，并参与许多重要的生理活动（Lee et al., 2004; Laohavisit and Davies, 2011）。它们在许多细胞事件中发挥着多种作用，作为Ca~（2+）信号、肌动蛋白细胞骨架和花粉发育和花粉管生长所需的膜之间的“连接物”。然而，植物膜联蛋白在花粉中的作用仍然知之甚少。
Pollen development is a post-meiotic process that produces mature pollen grains from microspores and can be regarded as an ideal model for the study of important plant physiological processes such as reproduction, cellular differentiation, cell fate determination, signal transduction, membrane transport, and fusion and polar growth. The regulation of pollen development is a complicated biological process that is crucial for sexual reproduction in flowering plants (Yamamoto et al., 2003; Durbarry et al., 2005; Twell, 2011; Cheung et al., 2013). The annexin family is a class of proteins that can bind to the membrane, phospholipids, and actin in a Ca~(2+)-dependent manner. The members of this family share an evolutionarily conserved structure that can be found in a wide variety of eukaryotic cells (Gerke and Moss, 2002; Moss and Morgan, 2004; Gerke et al., 2005). In recent years, annexins from many different plants were isolated, and their functions were studied. As with annexins in animals, those in plants have conserved the function of the protein family and also participate in many significant physiological activities (Lee et al., 2004; Laohavisit and Davies, 2011). They play multiple roles in numerous cellular events by acting as a putative ‘linker’ between Ca~(2+) signaling, the actin cytoskeleton, and the membrane, which are required for pollen development and pollen tube growth. However, the function of plant annexins in pollen remains poorly understood.