Melatonin: A Multifunctional Factor in Plants

Melatonin ( -acetyl-5-methoxy-tryptamine) is a universal molecule that is present in animals and plants. It has been detected in different kinds of plants and organs in different levels. Melatonin in plants shares the same initial biosynthesis compound with auxin, and therefore functions as indole-3...

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Bibliographic Details
Published in:International journal of molecular sciences 2018-05, Vol.19 (5), p.1528
Main Authors: Fan, Jibiao, Xie, Yan, Zhang, Zaichao, Chen, Liang
Format: Article
Language:English
Subjects:
Acclimatization
Acetic acid
Biosynthesis
Biosynthetic Pathways
Cellular stress response
Cold tolerance
Disease Resistance
Drought
Gene expression
Gene Expression Regulation, Plant
Heavy metals
Hormones
Indoleacetic acid
Melatonin
Melatonin - genetics
Melatonin - metabolism
Metabolites
Molecular chains
Organs
Photosynthesis
plant
Plant Development
Plant Physiological Phenomena
Plant protection
Plant Proteins - genetics
Plant Proteins - metabolism
Plants (botany)
Plants - enzymology
Plants - genetics
Plants - metabolism
Reactive oxygen species
Review
stress tolerance
Stress, Physiological
Tryptamine
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Summary:Melatonin ( -acetyl-5-methoxy-tryptamine) is a universal molecule that is present in animals and plants. It has been detected in different kinds of plants and organs in different levels. Melatonin in plants shares the same initial biosynthesis compound with auxin, and therefore functions as indole-3-acetic acid like hormones. Moreover, melatonin is involved in regulating plant growth and development, protecting plants against biotic and abiotic stresses, such as salt, drought, cold, heat and heavy metal stresses. Melatonin improves the stress tolerance of plants via a direct pathway, which scavenges reactive oxygen species directly, and indirect pathways, such as increasing antioxidate enzymes activity, photosynthetic efficiency and metabolites content. In addition, melatonin plays a role in regulating gene expression, and hence affects performance of plants. In this review, the biosynthesis pathway, growth and development regulation, and the environment stress response of melatonin in plants are summarized and future research directions and priorities of melatonin in plants are speculated.
ISSN:1422-0067
1661-6596
1422-0067
DOI:10.3390/ijms19051528