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Phytomelatonin: An overview of the importance and mediating functions of melatonin against environmental stresses
Author(s) -
Altaf Muhammad Ahsan,
Shahid Rabia,
Ren MingXun,
MoraPoblete Freddy,
Arnao Marino B.,
Naz Safina,
Anwar Muhammad,
Altaf Muhammad Mohsin,
Shahid Sidra,
Shakoor Awais,
Sohail Hamza,
Ahmar Sunny,
Kamran Muhammad,
Chen JenTsung
Publication year - 2021
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/ppl.13262
Subject(s) - melatonin , abiotic component , biology , auxin , salinity , germination , shoot , plant growth , senescence , botany , abiotic stress , explant culture , environmental stress , microbiology and biotechnology , ecology , biochemistry , gene , neuroscience , in vitro
Recently, melatonin has gained significant importance in plant research. The presence of melatonin in the plant kingdom has been known since 1995. It is a molecule that is conserved in a wide array of evolutionary distant organisms. Its functions and characteristics have been found to be similar in both plants and animals. The review focuses on the role of melatonin pertaining to physiological functions in higher plants. Melatonin regulates physiological functions regarding auxin activity, root, shoot, and explant growth, activates germination of seeds, promotes rhizogenesis (growth of adventitious and lateral roots), and holds up impelled leaf senescence. Melatonin is a natural bio‐stimulant that creates resistance in field crops against various abiotic stress, including heat, chemical pollutants, cold, drought, salinity, and harmful ultra‐violet radiation. The full potential of melatonin in regulating physiological functions in higher plants still needs to be explored by further research.