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Phytomelatonin: a review.

Sergio D Paredes1, Ahmet Korkmaz, Lucien C Manchester

  • 1Department of Cellular and Structural Biology, The University of Texas Health Science Center, 7703 Floyd Curl Drive, San Antonio, TX 78229, USA.

Journal of Experimental Botany
|November 27, 2008
PubMed
Summary

Melatonin, a compound previously thought to be animal-specific, is found in plants and acts as an antioxidant and growth promoter. Further research is encouraged to understand its full role in plant physiology.

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Area of Science:

  • Plant Science
  • Biochemistry
  • Molecular Biology

Background:

  • Melatonin (N-acetyl-5-methoxytryptamine) is increasingly detected in diverse plant species.
  • Evidence suggests plants synthesize and uptake melatonin, challenging its traditional classification as an animal-specific indole.

Purpose of the Study:

  • To review current research on melatonin in plants (phytomelatonin).
  • To update scientists on phytomelatonin knowledge and stimulate further investigation into its functions.

Main Methods:

  • Literature review of experimental investigations on plant melatonin.
  • Synthesis of existing data on melatonin's presence and actions in plants.

Main Results:

  • Melatonin's roles as an antioxidant and growth promoter in plants are strongly supported by evidence.
  • Potential functions include regulating photoperiodism, plant reproduction, and cellular defense against environmental stress and apoptosis.

Conclusions:

  • Melatonin is a significant phytomelatonin with diverse physiological roles.
  • Further research is crucial to elucidate the complete functions of melatonin in plants.