Walden R
Department of Plant Breeding and Biotechnology, Horticulture Research International, East Malling, West Malling, ME19 6BJ, UK. rick.walden@hri
Curr Opin Plant Biol. 1998 Oct;1(5):419-23. doi: 10.1016/s1369-5266(98)80266-5.
Recent work reveals a role for cyclic nucleotides as secondary signalling molecules in a variety of signal transduction pathways in plants. Evidence is accumulating that cGMP is involved in signalling during photomorphogenesis and that cADP-ribose triggers the release of sequestered Ca2+ during the response of plant cells to abscisic acid. Though more tentative, cAMP has been proposed as playing an important role in ion channel activity and cell cycle progression. Taken together, a picture emerges of differing signalling pathways, possibility interacting with each other, acting on an array of developmental processes.
近期研究表明，环核苷酸在植物多种信号转导途径中作为二级信号分子发挥作用。越来越多的证据表明，cGMP参与光形态建成过程中的信号传导，并且cADP-核糖在植物细胞对脱落酸的反应过程中触发了螯合的Ca2+的释放。虽然更具推测性，但cAMP已被认为在离子通道活性和细胞周期进程中发挥重要作用。综合来看，一幅不同信号通路相互作用、作用于一系列发育过程的图景浮现出来。
