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Trends Plant Sci. 2013 Apr;18(4):227-33. doi: 10.1016/j.tplants.2012.12.002. Epub 2013 Jan 3.

Plant mechanosensing and Ca2+ transport.

Author information

1
Department of Applied Biological Science, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan.

Abstract

Mechanical stimuli generate Ca(2+) signals and influence growth and development in plants. Recently, candidates for Ca(2+)-permeable mechanosensitive (MS) channels have been identified. These channels are thought to be responsible for sensing osmotic shock, touch, and gravity. One candidate is the MscS-like (MSL) protein family, a homolog of the typical bacterial MS channels. Some of the MSL proteins are localized to plastids to maintain their shape and size. Another candidate is the mid1-complementing activity (MCA) protein family, which is structurally unique to the plant kingdom. MCA proteins are localized in the plasma membrane and are suggested to be involved in mechanosensing and to be functionally related to reactive oxygen species (ROS) signaling. Here, we review their structural features and role in planta.

PMID:
23291244
DOI:
10.1016/j.tplants.2012.12.002
[Indexed for MEDLINE]

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