对邻近植物的机械检测通过动力学引起了适应性叶子运动
Chrysoula K Pantazopoulou1, Sara Buti2, Chi Tam Nguyen3
1Plant-Environment Signaling, Institute of Environment Biology, Utrecht University, Utrecht, The Netherlands. c.pantazopoulou@uu.nl.
Nature communications
|September 21, 2023
概括
植物通过叶尖毛发感觉到触摸,从而触发了叶子向上运动 (hyponasty). 这种依赖的途径有助于在拥挤的环境中生存.
科学领域:
- 植物生物学 植物生物学
- 机械感应 机械感应
- 植物的信号传输.
背景情况:
- 植物通过光和触觉感知邻居.
- 触摸会引起低静止,但感知和信号机制尚不清楚.
研究的目的:
- 研究触摸感应和信号在hyponasty.
- 确定触摸诱导的低静止症的适应意义.
主要方法:
- 机械刺激的阿拉比多普西斯叶尖.
- 测量细胞质 ([Ca2+]cyt) 动态的测量.
- 对三体功能和反应突变物的分析.
- 植物竞争测试.植物竞争测试.
主要成果:
- 触摸触发了一种独特的,依赖的信号通道,用于催眠.
- 细胞质 ([Ca2+]cyt) 在叶尖三角体中增加,并扩散到树.
- 三合体和信号传递对于触摸诱导的低静止症至关重要.
- 低增强了植物在密集的树中的竞争力.
结论:
- 触摸诱导的低静止症由一种新的依赖的途径介导,涉及三体.
- 这种机制是适应性的,改善了密集植被中的植物生存.
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