背景回顾：Animals possess specialized systems, e.g., neuromuscular systems, to sense the environment and then move their bodies quickly in response. Mimosa pudica, the sensitive plant, moves its leaves within seconds in response to external stimuli; e.g., touch or wounding. 

提出问题：However, neither the plant-wide signaling network that triggers these rapid movements nor the physiological roles of the movements themselves have been determined. 

结果1-调控机制：Here by simultaneous recording of cytosolic Ca²⁺ and electrical signals, we show that rapid changes in Ca²⁺ coupled with action and variation potentials trigger rapid movements in wounded M. pudica. 

结果2-生理作用：Furthermore, pharmacological manipulation of cytosolic Ca²⁺ dynamics and CRISPR-Cas9 genome editing technology revealed that an immotile M. pudica is more vulnerable to attacks by herbivorous insects.  

结论：Our findings provide evidence that rapid movements based on propagating Ca²⁺ and electrical signals protect this plant from insect attacks.

昆虫袭击增加含羞草胞质钙离子浓度和叶片移动

动物具有神经肌肉等专门的系统来感知外界环境，然后快速移动身体响应这些环境的变化。含羞草是一种敏感植物，它会在响应触摸或者损伤的几秒钟内，移动叶片。然而，无论是植物中作用于这种快速移动的信号转导网络，亦或是这种快速移动本身所具备的生理作用，都还不清楚。本文中，作者通过同时记录胞质的钙离子和电信号，发现钙离子的快速变化与动作电位和变异电位一起，在受伤的含羞草中触发快速移动。此外，对胞质钙离子动态的药理调控以及借助CRISPR/Cas9基因组编辑技术，作者发现一个不具备叶片快速移动特性的含羞草更容易遭到草食动物的攻击。本文的研究结果揭示了通过钙离子和电信号的传播所诱导的植物器官快速移动可以保护这种植物免受昆虫的攻击。

创伤诱导含羞草叶片的快速移动