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Related Concept Videos

Plant Hormones01:56

Plant Hormones

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Melatonin and Its Effects on Plant Systems.

Rahat Sharif1, Chen Xie2, Haiqiang Zhang3

  • 1College of Horticulture, Northwest A&F University, Yangling 712100, China. rahatsharif2016@nwafu.edu.cn.

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Summary

Melatonin, a plant molecule, acts as an antioxidant and stress regulator, enhancing crop resilience and postharvest life. Its versatile roles support environmentally friendly crop production and food safety.

Keywords:
abiotic stressantioxidantsbiotic stressgene expressionmelatoninmitochondriapostharvest

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Area of Science:

  • Plant Science
  • Biochemistry
  • Agriculture

Background:

  • Melatonin (N-acetyl-5-methoxytryptamine) is a naturally occurring molecule in plants and animals.
  • It functions as a crucial secondary messenger in stress response.
  • Melatonin is recognized for its antioxidant properties in postharvest applications.

Purpose of the Study:

  • To review the diverse roles of melatonin in plant systems.
  • To highlight its potential in enhancing crop production and food safety.
  • To explore strategies for utilizing melatonin against various stress conditions.

Main Methods:

  • Review of existing literature on melatonin's function in plants.
  • Analysis of melatonin's effects on stress alleviation and gene regulation.
  • Exploration of its interaction with other plant hormones.

Main Results:

  • Exogenous melatonin application mitigates oxidative stress and cell damage by repairing mitochondria.
  • Melatonin regulates stress-responsive genes and activates defense-related enzymes.
  • Its crosstalk with phytohormones broadens its application against uncharacterized stresses like viruses and nematodes.

Conclusions:

  • Melatonin is a versatile molecule with significant potential in agriculture.
  • It can enhance plant stress tolerance, prolong postharvest life, and improve crop yields.
  • Harnessing endogenous melatonin activity offers a sustainable approach to crop production and food safety.