褪黑素是一种重要的植物生长调节剂，在植物中具有多种功效。鉴于褪黑素在植物中的多种功能作用，为了给褪黑素在农业生产中的应用提供理论依据，通过查阅并梳理相关文献，阐述了植物中褪黑素的合成及代谢途径，褪黑素对植物生长发育的调控及对植物响应逆境胁迫的影响和褪黑素诱导作用的机制。褪黑素不仅参与植物种子萌发、根系发育、开花结果等生长发育过程，还能充当胁迫缓解剂，调节植物对多种生物胁迫/非生物胁迫的响应，且用外源褪黑素处理能够有效地缓解低温、干旱、盐碱以及病虫害等对植物的损伤程度，今后的研究应将盆栽试验与田间试验结合起来，以加速褪黑素在农业中的广泛应用。

As a master plant growth regulator, melatonin possesses multiple functions in plants. Given the multiple functional roles of melatonin in plants, the synthesis and metabolic pathways of phytomelatonin, the regulation of plant growth and development, the effects on plant response to adversity stress by melatonin and the mechanism of melatonin-induced effects are elaborated through literature review to provide theoretical bases for melatonin's application in agricultural production. Melatonin is not only involved in the growth and development stages such as seed germination, root development, flowering, and fruiting, but also acts as stress mitigator to regulate the response of plants to a wide range of biotic/abiotic stresses, and the treatment with exogenous melatonin could effectively alleviate the damage of plants caused by low temperatures, droughts, salinity, as well as diseases and pests. Future research should link pot trials with field trials to accelerate the extensive use of melatonin in agriculture.

S482.8

国家自然科学基金项目(32060711)。