Current research and future directions of melatonin's role in seed germination

Abstract Seed germination is a complex process regulated by internal and external factors. Melatonin (N-acetyl-5-methoxytryptamine) is a ubiquitous signaling molecule, playing an important role in regulating seed germination under normal and stressful conditions. In this review, we aim to provide a...

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Main Authors: Ze Liu, Hengrui Dai, Jinjiang Hao, Rongrong Li, Xiaojun Pu, Miao Guan, Qi Chen
Format: Article
Language:English
Published: Springer 2023-12-01
Series:Stress Biology
Subjects:
Online Access:https://doi.org/10.1007/s44154-023-00139-5
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author Ze Liu
Hengrui Dai
Jinjiang Hao
Rongrong Li
Xiaojun Pu
Miao Guan
Qi Chen
author_facet Ze Liu
Hengrui Dai
Jinjiang Hao
Rongrong Li
Xiaojun Pu
Miao Guan
Qi Chen
author_sort Ze Liu
collection DOAJ
description Abstract Seed germination is a complex process regulated by internal and external factors. Melatonin (N-acetyl-5-methoxytryptamine) is a ubiquitous signaling molecule, playing an important role in regulating seed germination under normal and stressful conditions. In this review, we aim to provide a comprehensive overview on melatonin's effects on seed germination on the basis of existing literature. Under normal conditions, exogenous high levels of melatonin can suppress or delay seed germination, suggesting that melatonin may play a role in maintaining seed dormancy and preventing premature germination. Conversely, under stressful conditions (e.g., high salinity, drought, and extreme temperatures), melatonin has been found to accelerate seed germination. Melatonin can modulate the expression of genes involved in ABA and GA metabolism, thereby influencing the balance of these hormones and affecting the ABA/GA ratio. Melatonin has been shown to modulate ROS accumulation and nutrient mobilization, which can impact the germination process. In conclusion, melatonin can inhibit germination under normal conditions while promoting germination under stressful conditions via regulating the ABA/GA ratios, ROS levels, and metabolic enzyme activity. Further research in this area will deepen our understanding of melatonin's intricate role in seed germination and may contribute to the development of improved seed treatments and agricultural practices.
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spelling doaj.art-497cb01f832a4cd089be94c3df32f77f2023-12-10T12:07:59ZengSpringerStress Biology2731-04502023-12-013111110.1007/s44154-023-00139-5Current research and future directions of melatonin's role in seed germinationZe Liu0Hengrui Dai1Jinjiang Hao2Rongrong Li3Xiaojun Pu4Miao Guan5Qi Chen6Faculty of Life Science and Technology, Kunming University of Science and TechnologyFaculty of Life Science and Technology, Kunming University of Science and TechnologyFaculty of Life Science and Technology, Kunming University of Science and TechnologyFaculty of Life Science and Technology, Kunming University of Science and TechnologyFaculty of Life Science and Technology, Kunming University of Science and TechnologyFaculty of Life Science and Technology, Kunming University of Science and TechnologyFaculty of Life Science and Technology, Kunming University of Science and TechnologyAbstract Seed germination is a complex process regulated by internal and external factors. Melatonin (N-acetyl-5-methoxytryptamine) is a ubiquitous signaling molecule, playing an important role in regulating seed germination under normal and stressful conditions. In this review, we aim to provide a comprehensive overview on melatonin's effects on seed germination on the basis of existing literature. Under normal conditions, exogenous high levels of melatonin can suppress or delay seed germination, suggesting that melatonin may play a role in maintaining seed dormancy and preventing premature germination. Conversely, under stressful conditions (e.g., high salinity, drought, and extreme temperatures), melatonin has been found to accelerate seed germination. Melatonin can modulate the expression of genes involved in ABA and GA metabolism, thereby influencing the balance of these hormones and affecting the ABA/GA ratio. Melatonin has been shown to modulate ROS accumulation and nutrient mobilization, which can impact the germination process. In conclusion, melatonin can inhibit germination under normal conditions while promoting germination under stressful conditions via regulating the ABA/GA ratios, ROS levels, and metabolic enzyme activity. Further research in this area will deepen our understanding of melatonin's intricate role in seed germination and may contribute to the development of improved seed treatments and agricultural practices.https://doi.org/10.1007/s44154-023-00139-5MelatoninSeed germinationNormal conditionsStressful conditionsABAGA
spellingShingle Ze Liu
Hengrui Dai
Jinjiang Hao
Rongrong Li
Xiaojun Pu
Miao Guan
Qi Chen
Current research and future directions of melatonin's role in seed germination
Stress Biology
Melatonin
Seed germination
Normal conditions
Stressful conditions
ABA
GA
title Current research and future directions of melatonin's role in seed germination
title_full Current research and future directions of melatonin's role in seed germination
title_fullStr Current research and future directions of melatonin's role in seed germination
title_full_unstemmed Current research and future directions of melatonin's role in seed germination
title_short Current research and future directions of melatonin's role in seed germination
title_sort current research and future directions of melatonin s role in seed germination
topic Melatonin
Seed germination
Normal conditions
Stressful conditions
ABA
GA
url https://doi.org/10.1007/s44154-023-00139-5
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