Title：
Comparative physiological and proteomic analyses reveal the actions of melatonin in the reduction of oxidative stress in Bermuda grass ( (L). Pers.)Cynodon dactylon
Authors：
Corresponding
Author：
Haitao Shi, Xin Wang,Dun-Xian Tan, Russel J. Reiter and Zhulong Chan*
Pubyear：
2015
Title of
Journal：
Journal of Pineal Research
Paper
Code：
Volume：
59
Number：
Page：
120–131
Others：
Classification：
Source：
Abstract：
The fact of melatonin as an important antioxidant in animals led plant researchers to speculate that melatonin also acts in the similar manner in plants. Although melatonin has significant effects on alleviating stresstriggered reactive oxygen species (ROS), the involvement of melatonin in direct oxidative stress and the underlying physiological and molecular mechanisms remain unclear in plants. In this study, we found that exogenous melatonin significantly alleviated hydrogen peroxide (H2O2)-modulated plant growth, cell damage, and ROS accumulation in Bermuda grass. Additionally, 76 proteins significantly influenced by melatonin during mock or H2O2 treatment were identified by gel-free proteomics using iTRAQ (isobaric tags for relative and absolute quantitation). Metabolic pathway analysis showed that several pathways were markedly enhanced by melatonin and H2O2 treatments, including polyamine metabolism, ribosome pathway, major carbohydrate metabolism, photosynthesis, redox, and amino acid metabolism. Taken together, this study provides more comprehensive insights into the physiological and molecular mechanisms of melatonin in Bermuda grass responses to direct oxidative stress. This may relate to the activation of antioxidants, modulation of metabolic pathways, and extensive proteome reprograming.
Copyright 2002 - 2023 Wuhan Botanical Garden,Chinese Academy Of
Sciences
Email: wbgoffice@wbgcas.cn ICP: 05004779-1
