PMID: 9429339Jan 16, 1998Paper

New actions of melatonin and their relevance to biometeorology

International Journal of Biometeorology
R Hardeland

Abstract

Melatonin is not only produced by the pineal gland, retina and parietal but also by various other tissues and cells from vertebrates, invertebrates, fungi, plants, multicellular algae and by unicells. In plants, many invertebrates and unicells, its concentration often exceeds that found in vertebrate blood by several orders of magnitude. The action of melatonin is highly pleiotropic. It involves firstly, direct effects, via specific binding sites in various peripheral tissues and cells of vertebrates, including immunomodulation; secondly, systemic influences on the cytoskeleton and nitric oxide formation, mediated by calmodulin; and thirdly, antioxidative protection, perhaps also in the context of photoprotection in plants and unicells. In some dinoflagellates, melatonin conveys temperature signals. On the basis of these comparisons, melatonin appears to mediate and modulate influences from several major environmental factors, such as the photoperiod, radiation intensity and temperature.

Citations

Nov 4, 2000·Journal of Biomedical Science·R J ReiterE Gitto
Oct 14, 1998·Progress in Neurobiology·R J Reiter
Nov 30, 2006·International Journal of Toxicology·Challa SureshC S Chetty
Nov 27, 2008·Journal of Experimental Botany·Sergio D ParedesRussel J Reiter
Mar 1, 2016·Frontiers in Plant Science·Rüdiger Hardeland
Jan 19, 2010·Journal of Photochemistry and Photobiology. B, Biology·C Haldar, R Ahmad
Feb 24, 2015·Progress in Neurobiology·Rüdiger HardelandSeithikurippu R Pandi-Perumal
Sep 5, 2002·Journal of Neuroscience Research·Francisco Martinez-CruzJuan M Guerrero
Mar 29, 2003·Journal of Pineal Research·Rüdiger Hardeland, Burkhard Poeggeler

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