Caniato Rosamaria, Filippini Raffaella, Piovan Anna, Puricelli Lucia, Borsarini Anna, Cappelletti Elsa M
Dipartimento di Biologia, via U. Bassi 58/B 35131 Padova, Italy.
Adv Exp Med Biol. 2003;527:593-7. doi: 10.1007/978-1-4615-0135-0_68.
A widespread occurrence of melatonin in plant kingdom has been reported. The circadian rhythm in the level of melatonin observed in both unicellular algae and higher plants, suggests a role in regulation of photoperiodic and rhythmic phenomena, i.e. a similar function for melatonin in both plants and animals. Evidence has been obtained for a role of melatonin in plant morphogenesis, but more research is needed to ascertain other suggested physiological roles in higher plants (seed dormancy regulation, radical scavenger activity, interaction with calmodulin) as well the ecological significance of the high melatonin levels recorded in alpine plants. Setting-up more reliable analytical methods for melatonin detection and quantification is a basic requirement to get more insight into melatonin roles in plant physiology and ecology.
据报道，褪黑素在植物界广泛存在。在单细胞藻类和高等植物中均观察到褪黑素水平的昼夜节律，这表明其在光周期和节律现象的调节中发挥作用，即在植物和动物中具有相似的功能。已获得证据表明褪黑素在植物形态发生中起作用，但需要更多研究来确定其在高等植物中的其他假定生理作用（种子休眠调节、自由基清除活性、与钙调蛋白的相互作用）以及高山植物中高褪黑素水平的生态意义。建立更可靠的褪黑素检测和定量分析方法是更深入了解褪黑素在植物生理学和生态学中作用的基本要求。
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