Melatonin Functions and Stress Adaptation in Plants
A special issue of Biomolecules (ISSN 2218-273X). This special issue belongs to the section "Natural and Bio-derived Molecules".
Deadline for manuscript submissions: 31 January 2027 | Viewed by 240
Editor
Interests: plant melatonin biosynthesis; transgenic plants; serotonin N-acetyltransferase; herbicide resistance
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
In plants, melatonin biosynthesis is triggered by tryptophan, an aromatic amino acid synthesized through the shikimate pathway in chloroplasts. Melatonin, an amphipathic molecule, is present in all cellular organelles and functions not only as an antioxidant but also as a crucial signaling molecule for optimal functioning of chloroplasts and the endoplasmic reticulum. Like melatonin, melatonin metabolites, such as 2-hydroxymelatonin and 3-hydroxymelatonin, also play a crucial role in plant growth and development. The multifaceted roles of melatonin and its metabolites are believed to involve receptors and various downstream signaling pathways, altering the expression levels of multiple genes. These genes play a crucial role in enhancing resistance to various biotic and abiotic stresses, including extreme temperatures, water shortages, high-light conditions, heavy metals, pesticides, bacteria, fungi, and viruses. To fulfill these beneficial roles, melatonin's steady-state levels are precisely regulated by melatonin biosynthetic and degradation genes in response to the aforementioned stresses. This Special Issue welcomes all areas of melatonin research related to melatonin synthesis, degradation, related genes, quantification of melatonin and its metabolites, possible signaling pathway components, and functions of melatonin and its metabolites in plants.
Prof. Dr. Kyoungwhan Back
Guest Editor
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Keywords
- melatonin biosynthesis
- melatonin metabolites
- biotic stresses
- abiotic stresses
- plant growth and development
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