Cortical microtubule rearrangements and cell wall patterning.

Cortical microtubule rearrangements and cell wall patterning.
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DOI:
10.3389/fpls.2015.00236
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发表时间:
2015
影响因子:
5.6
通讯作者:
Oda Y
Oda Y
中科院分区:
生物学2区
文献类型:
--
作者:
Oda Y

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植物皮层微管在质膜下形成高度有序的阵列,通过指导细胞表面纤维素和非纤维素化合物的排列,在决定细胞形状和功能方面发挥重要作用。皮层微管间相横向阵列通过其动态不稳定性和微管间相互作用以及分支状微管成核和切断自组织。最近的研究表明,包括ROP、GTPase、细胞几何和机械应力在内的不同空间信号在亚细胞和超细胞水平上调节皮层微管的行为,导致皮层微管阵列在响应内部和外部信号时发生剧烈的重排。越来越多的证据表明,微管的负调节因子也有助于皮层微管阵列的重排。在这篇综述中,我总结了最近关于皮层微管阵列的重排如何导致适当的、灵活的细胞壁图案的见解。
Plant cortical microtubules, which form a highly ordered array beneath the plasma membrane, play essential roles in determining cell shape and function by directing the arrangement of cellulosic and non-cellulosic compounds on the cell surface. Interphase transverse arrays of cortical microtubules self-organize through their dynamic instability and inter-microtubule interactions, and by branch-form microtubule nucleation and severing. Recent studies revealed that distinct spatial signals including ROP GTPase, cellular geometry, and mechanical stress regulate the behavior of cortical microtubules at the subcellular and supercellular levels, giving rise to dramatic rearrangements in the cortical microtubule array in response to internal and external cues. Increasing evidence indicates that negative regulators of microtubules also contribute to the rearrangement of the cortical microtubule array. In this review, I summarize recent insights into how the rearrangement of the cortical microtubule array leads to proper, flexible cell wall patterning.
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