谷氨酸触发了基于的长距离植物防御信号
Masatsugu Toyota1,2,3, Dirk Spencer2, Satoe Sawai-Toyota2
1Department of Biochemistry and Molecular Biology, Saitama University, Saitama 338-8570, Japan. mtoyota@mail.saitama-u.ac.jp sgilroy@wisc.edu.
Science (New York, N.Y.)
|September 15, 2018
概括
谷氨酸是一种已知的动物神经递质,在植物中也起到伤口信号的作用. 植物的谷氨酸受体类通道检测到这个信号,触发的增加和远程防御反应.
科学领域:
- 植物生物学 植物生物学
- 分子信号传递是分子信号传递.
- 生物化学 生化学
背景情况:
- 动物使用谷氨酸作为神经递质进行快速,远程信号传输.
- 植物还拥有远程信号,以协调对局部刺激的反应,如草食动物的攻击.
研究的目的:
- 研究谷氨酸作为植物中信号分子的作用.
- 为了确定参与感知谷氨酸中介信号的植物受体.
主要方法:
- 对植物对受伤反应的实验分析.
- 研究氨酸受体类似 (GLR) 通道的功能.
- 测量细胞内离子度变化.
主要成果:
- 谷氨酸被确定为植物中受伤诱导的信号.
- 研究人员发现,类似谷氨酸受体的道可以作为谷氨酸传感器.
- 信号转导涉及细胞内的增加,它传播到遥远的组织.
结论:
- 谷氨酸在植物中作为远程伤口信号起作用.
- GLR通道介导着谷氨酸信号转化为基于的传播.
- 这种机制允许植物快速激活系统性防御反应.
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