United in diversity: mechanosensitive ion channels in plants.

United in diversity: mechanosensitive ion channels in plants.
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DOI:
10.1146/annurev-arplant-043014-114700
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发表时间:
2015
影响因子:
23.9
通讯作者:
Haswell ES
Haswell ES
中科院分区:
生物学1区
文献类型:
--
作者:
Hamilton ES;Schlegel AM;Haswell ES

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机械敏感(MS)离子通道是感知和响应机械力的一种常见机制。这类机械感受器能够将膜张力直接转换为离子通量。在植物系统中,MS离子通道被认为扮演着广泛的角色,从感知触摸和重力到细胞内细胞器的渗透平衡。植物MS离子通道有三个家族:类MSCs(MSL)、MID1互补活性(MCA)和双孔钾(TPK)家族。这些家族的通道在结构和功能上差异很大,定位于多个细胞间隔,并传导氯、钙和/或钾离子。然而,它们仍然可能只代表植物系统中MS离子通道多样性的一小部分。
Mechanosensitive (MS) ion channels are a common mechanism for perceiving and responding to mechanical force. This class of mechanoreceptors is capable of transducing membrane tension directly into ion flux. In plant systems, MS ion channels have been proposed to play a wide array of roles, from the perception of touch and gravity to the osmotic homeostasis of intracellular organelles. Three families of plant MS ion channels have been identified: the MscS-like (MSL), Mid1-complementing activity (MCA), and two-pore potassium (TPK) families. Channels from these families vary widely in structure and function, localize to multiple cellular compartments, and conduct chloride, calcium, and/or potassium ions. However, they are still likely to represent only a fraction of the MS ion channel diversity in plant systems.
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