微管动态不稳定性及其微管排向的光调控  

Dynamic Instability of Microtubule and Regulation of Microtubule Layout by Light

作　　者：高素娟[1] 张丽丽[1] 王小菁[1] 

机构地区：[1]华南师范大学生命科学学院,广东广州510631

出　　处：《天水师范学院学报》2009年第5期16-19,共4页Journal of Tianshui Normal University

基　　金：国家自然科学基金(批准号:30570165);广东省科技攻关(批准号:2005B20901014和2006A20101007)阶段性成果

摘　　要：微管组织是细胞骨架系统的主要组成成分和功能组件.生物体内微管与微管蛋白之间始终处于一个动态的解聚组装过程,这是微管骨架行使诸多生理功能的重要保证.植物微管排向在植物生长发育过程中参与细胞分裂、细胞形状控制、下胚轴生长以及气孔运动等重要生理过程,且受到光、激素以及环境应激等多种复杂因素的调节.Microtubules （MTS） are the primary components and functional elements in cytoskeleton system. One of prominent features of MTS is their dynamics instability, which is the important guarantee for MTS to exercise a number of physiological functions. In addition, MTS layout, which is regulated by light, hormones and environmental stressors, plays the key role in many physiological processes such as cell mitosis, cell morphogenesis, hypocotyl growth and stomatal movement. The review mainly focuses on the dynamics instability of MTS and the regulation of MTS layout by light.

关 键 词：微管排向 动态不稳定性 光调控 下胚轴 气孔运动 

分 类 号：Q245[生物学—细胞生物学]