School of Life Sciences, Oxford Brookes University, Gipsy Lane, Oxford, OX3 0BP, UK.
Biochem Soc Trans. 2010 Jun;38(3):833-8. doi: 10.1042/BST0380833.
Organelle movement in plants cells is extremely dynamic. Movement is driven by the acto-myosin system. Higher plant myosins fall into two classes: classes XI and VIII. Localization studies have highlighted that myosins are present throughout the cytosol, label motile puncta and decorate the nuclear envelope and plasma membrane. Functional studies through expression of dominant-negative myosin variants, RNAi (RNA interference) and T-DNA insertional analysis have shown that class XI myosins are required for organelle movement. Intriguingly, organelle movement is also linked to Arabidopsis growth and development. The present review tackles current findings relating to plant organelle movement and the role of myosins.
植物细胞中的细胞器运动是极其动态的。运动是由肌动球蛋白系统驱动的。高等植物肌球蛋白分为两类：XI 类和 VIII 类。定位研究强调肌球蛋白存在于整个细胞质中，标记运动性斑点，并装饰核膜和质膜。通过表达显性负性肌球蛋白变体、RNAi（RNA 干扰）和 T-DNA 插入分析的功能研究表明，XI 类肌球蛋白对于细胞器运动是必需的。有趣的是，细胞器运动也与拟南芥的生长和发育有关。本综述探讨了与植物细胞器运动和肌球蛋白作用相关的当前发现。
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