CAJ | 학술논문

褪黑素广泛存在于植物体内，对植物生长和发育方面有着重要的作用。其中，最为人们关注的是褪黑素在植物抵御干旱、高盐、极端温度和氧化胁迫等不良影响中所发挥的重要功能。随着人们对褪黑素研究的深入，褪黑素在植物体中发挥的作用和功能也更加明确，国内外在褪黑素与植物抗逆性关系的研究也取得了丰硕的成果。主要从植物体中褪黑素的合成途径、褪黑素在植物抗性反应中的作用以及内源褪黑素含量与逆境等方面进行了综述，并提出今后的研究方向。可以归纳为：植物体内褪黑素的合成机制与动物体内相似，但是确切的生物合成途径和具体的合成位点尚未明确；外源褪黑素处理能够增强植物抵御逆境的能力；逆境胁迫能够促进植物自身合成褪黑素，过表达褪黑素合成相关基因能够增加植物体内褪黑素的含量。
퇴흑소엄범존재우식물체내，대식물생장화발육방면유착중요적작용。기중，최위인문관주적시퇴흑소재식물저어간한、고염、겁단온도화양화협박등불량영향중소발휘적중요공능。수착인문대퇴흑소연구적심입，퇴흑소재식물체중발휘적작용화공능야경가명학，국내외재퇴흑소여식물항역성관계적연구야취득료봉석적성과。주요종식물체중퇴흑소적합성도경、퇴흑소재식물항성반응중적작용이급내원퇴흑소함량여역경등방면진행료종술，병제출금후적연구방향。가이귀납위：식물체내퇴흑소적합성궤제여동물체내상사，단시학절적생물합성도경화구체적합성위점상미명학；외원퇴흑소처리능구증강식물저어역경적능력；역경협박능구촉진식물자신합성퇴흑소，과표체퇴흑소합성상관기인능구증가식물체내퇴흑소적함량。
Evidence has confirmed that the presence of melatonin in plants is universal. Melatonin has importance roles in many aspects of plant growth and development. The most frequently mentioned functions of melatonin are related to abiotic stresses such as drought, salt stress, extreme temperature, and oxidative stresses. Nowadays, with understanding deepening of melatonin, studies about the effect of melatonin on abiotic stresses resistance in plants have made plentiful and substantial achievements. This review mainly focuses on the biosynthesis pathway of melatonin, exogenously applied melatonin affects stress tolerance and melatonin levels in plants under stress conditions, and also proposes the potential subjects of melatonin in plant. The findings are as follows, although it has been suggested that plant melatonin is synthesized via similar biosynthetic pathways to those in animals, the exact biosynthetic pathway and the specific sites remain unclear. Evidence indicates that exogenously applied melatonin can also improve abiotic stress resistance in plants. Environmental stress can enhance the level of endogenous melatonin in plants, and overexpression of the melatonin biosynthetic genes can also increase melatonin levels.