Plant mechanosensing and Ca²⁺ transport

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• 作者：Takamitsu Kurusu¹ ; ² ; ³ ; Kazuyuki Kuchitsu¹ ; ² ; ^{kuchitsu@rs.noda.tus.ac.jp} ; Masataka Nakano⁴ ; Yoshitaka Nakayama⁴ ; Hidetoshi Iida⁴ ; ^{iida@u-gakugei.ac.jp}
• 刊名：Trends in Plant Science
• 出版年：2013
• 出版时间：April, 2013
• 年：2013
• 卷：18
• 期：4
• 页码：227-233
• 全文大小：501 K

文摘

Mechanical stimuli generate Ca²⁺ signals and influence growth and development in plants. Recently, candidates for Ca²⁺-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.