Ackermann Frank, Stanislas Thomas
Center for Plant Molecular Biology, University of Tuebingen, 72076 Tuebingen, Baden-Wuerttemberg, Germany.
Plants (Basel). 2020 Apr 14;9(4):505. doi: 10.3390/plants9040505.
Plants are able to sense their mechanical environment. This mechanical signal is used by the plant to determine its phenotypic features. This is true also at a smaller scale. Morphogenesis, both at the cell and tissue level, involves mechanical signals that influence specific patterns of gene expression and trigger signaling pathways. How a mechanical stress is perceived and how this signal is transduced into the cell remains a challenging question in the plant community. Among the structural components of plant cells, the plasma membrane has received very little attention. Yet, its position at the interface between the cell wall and the interior of the cell makes it a key factor at the nexus between biochemical and mechanical cues. So far, most of the key players that are described to perceive and maintain mechanical cell status and to respond to a mechanical stress are localized at or close to the plasma membrane. In this review, we will focus on the importance of the plasma membrane in mechano-sensing and try to illustrate how the composition of this dynamic compartment is involved in the regulatory processes of a cell to respond to mechanical stress.
植物能够感知其机械环境。植物利用这种机械信号来确定其表型特征。在较小尺度上也是如此。细胞和组织水平的形态发生都涉及影响特定基因表达模式并触发信号通路的机械信号。机械应力如何被感知以及该信号如何转导到细胞内，仍然是植物学界一个具有挑战性的问题。在植物细胞的结构成分中，质膜很少受到关注。然而，它位于细胞壁与细胞内部的界面位置，使其成为生化和机械信号之间联系的关键因素。到目前为止，大多数被描述为感知和维持细胞机械状态以及对机械应力作出反应的关键分子都定位在质膜或其附近。在这篇综述中，我们将聚焦质膜在机械传感中的重要性，并试图阐明这个动态区室的组成如何参与细胞对机械应力作出反应的调节过程。
