Crosstalk between Melatonin and Reactive Oxygen Species in Plant Abiotic Stress Responses: An Update

Melatonin acts as a multifunctional molecule that takes part in various physiological processes, especially in the protection against abiotic stresses, such as salinity, drought, heat, cold, heavy metals, etc. These stresses typically elicit reactive oxygen species (ROS) accumulation. Excessive ROS...

Full description

Saved in:
Bibliographic Details
Published in:International journal of molecular sciences 2022-05, Vol.23 (10), p.5666
Main Authors: Gu, Quan, Xiao, Qingqing, Chen, Ziping, Han, Yi
Format: Article
Language:English
Subjects:
Abiotic stress
Antioxidants
Biosynthesis
Cold
Corn
Crop growth
Crosstalk
Drought
Enzymes
Flavonoids
Heavy metals
Homeostasis
Homology
Hydrogen sulfide
Melatonin
Metabolism
Metabolites
Nitric oxide
Oxidative stress
Plant tolerance
Rape plants
RBOHs
Reactive oxygen species
Respiratory burst oxidase
Review
Rice
Salinity
signaling networks
Stress response
Tomatoes
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Melatonin acts as a multifunctional molecule that takes part in various physiological processes, especially in the protection against abiotic stresses, such as salinity, drought, heat, cold, heavy metals, etc. These stresses typically elicit reactive oxygen species (ROS) accumulation. Excessive ROS induce oxidative stress and decrease crop growth and productivity. Significant advances in melatonin initiate a complex antioxidant system that modulates ROS homeostasis in plants. Numerous evidences further reveal that melatonin often cooperates with other signaling molecules, such as ROS, nitric oxide (NO), and hydrogen sulfide (H S). The interaction among melatonin, NO, H S, and ROS orchestrates the responses to abiotic stresses via signaling networks, thus conferring the plant tolerance. In this review, we summarize the roles of melatonin in establishing redox homeostasis through the antioxidant system and the current progress of complex interactions among melatonin, NO, H S, and ROS in higher plant responses to abiotic stresses. We further highlight the vital role of respiratory burst oxidase homologs (RBOHs) during these processes. The complicated integration that occurs between ROS and melatonin in plants is also discussed.
ISSN:1422-0067
1661-6596
1422-0067
DOI:10.3390/ijms23105666