Davies E
School of Biological Sciences, University of Nebraska, Lincoln 68588-0118.
Semin Cell Biol. 1993 Apr;4(2):139-47. doi: 10.1006/scel.1993.1017.
Electrical signals (action potentials) and hydraulic signals (evidenced as variation potentials, graded potentials or slow waves) are discussed as complements to hormones as major means of intercellular communication in plants. It is shown that all three types of signals can be transduced into similar intracellular signals via the appropriate Ca2+ channel (voltage-gated, mechano-sensitive, or hormone-dependent, respectively). A likely role for these signals in modulating gene expression through transcription and translation is presented with special reference given to (de)phosphorylation modulated via Ca(2+)-dependent cytoskeleton-associated proteins.
电信号(动作电位)和液压信号(表现为变异电位、分级电位或慢波)作为植物细胞间通讯的主要手段,被视为激素的补充而进行讨论。研究表明,所有这三种类型的信号都可以通过适当的Ca2+通道(分别为电压门控通道、机械敏感通道或激素依赖性通道)转导为相似的细胞内信号。本文特别提及通过Ca(2+)依赖性细胞骨架相关蛋白调节的(去)磷酸化作用,阐述了这些信号在通过转录和翻译调节基因表达方面可能发挥的作用。