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Melatonin in higher plants: occurrence and possible functions
1Institute of Experimental Botany, Academy of Sciences of the Czech Republic, Prague, Czech Republic.
Journal of Pineal Research
|October 7, 2005
Summary
Melatonin is widespread in plants, with reliable detection via chromatography-mass spectrometry. This plant hormone influences flowering, acts as an antioxidant, and may mediate plant interactions with pests.
Area of Science:
- Plant Science
- Biochemistry
- Phytochemistry
Background:
- Melatonin, a hormone, is increasingly recognized for its presence and potential roles within the plant kingdom.
- Understanding melatonin's functions in plants is crucial for agricultural and ecological applications.
Purpose of the Study:
- To review methods for determining melatonin in plant tissues.
- To explore the diverse potential functions of melatonin in plants.
Main Methods:
- Evaluation of analytical techniques for melatonin quantification in plants.
- Literature review of experimental findings on melatonin's physiological effects in various plant species.
Main Results:
- Reliable melatonin detection requires advanced methods like liquid chromatography-mass spectrometry (LC-MS) or gas chromatography-mass spectrometry (GC-MS) post-extraction.
- Observed functions include delaying flower induction, aiding cyst formation in dinoflagellates, antioxidant activity, auxin-like effects, and mediating plant-pest interactions.
Conclusions:
- Melatonin is a ubiquitous plant compound with significant, yet not fully understood, physiological roles.
- Further research is essential to elucidate the precise functions and signaling pathways of melatonin in plants.