Phytomelatonin in Ornamental Horticulture: A Comprehensive Review of Growth Promotion, Stress Tolerance, and Post-Harvest Quality
Eman Abdelhakim Eisa, Andrea Tilly-Mándy, Péter Honfi

TL;DR
This review explores how phytomelatonin boosts growth, stress tolerance, and post-harvest quality in ornamental plants, offering sustainable solutions for the horticulture industry.
Contribution
The paper provides a comprehensive synthesis of phytomelatonin's roles in ornamental horticulture, including its molecular mechanisms and practical applications.
Findings
Phytomelatonin acts as a ROS scavenger and signaling molecule, enhancing plant stress tolerance and growth.
Melatonin synergizes with auxins to improve rhizogenesis and seed germination in ornamental plants.
Melatonin extends post-harvest vase life by suppressing senescence genes and ethylene production.
Abstract
The ornamental plant industry faces escalating threats from erratic climate patterns and post-harvest perishability. Phytomelatonin (N-acetyl-5-methoxytryptamine) has emerged as a potent biostimulant capable of addressing these critical bottlenecks. This review synthesizes current knowledge on melatonin’s multifaceted roles in ornamental horticulture, clarifying the molecular pathways where it acts as both a direct Reactive Oxygen Species (ROS) scavenger and a signaling molecule orchestrating crosstalk with auxins, abscisic acid, and ethylene. We highlight applications in propagation, where melatonin synergizes with auxins to enhance rhizogenesis and promotes seed germination via hormopriming. Furthermore, we examine melatonin-mediated tolerance to abiotic stresses including drought, salinity, and temperature extremes emphasizing its role in preserving photosynthetic machinery and ion…
Genes, proteins, chemicals, diseases, species, mutations and cell lines named across the full text — each resolved to its canonical identifier and authoritative record.
Click any figure to enlarge with its caption.
Figure 1Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsPlant Molecular Biology Research · Light effects on plants · Postharvest Quality and Shelf Life Management
