Insights to Nitric oxide-Melatonin Crosstalk and N-nitrosomelatonin Functioning in Plants: Where do We Stand?

08:00 EDT 20th August 2019 | BioPortfolio

Summary of "Insights to Nitric oxide-Melatonin Crosstalk and N-nitrosomelatonin Functioning in Plants: Where do We Stand?"

The present review summarizes the current understanding of Nitric oxide-melatonin crosstalk in plants manifested by redox homoeostasis, regulation of gene expression and developmental changes. It further addresses the question of the possible role of NO-melatonin crosstalk to be operative through N-nitrosomelatonin formation (NOmela) in plants. Although NOmela appears to be a nascent molecule in plant systems, investigations on nitric oxide-melatonin cross talk in relation to abiotic stress tolerance, fruit ripening and morphogenesis in plants have emerged as new avenues of research in the recent past. Similar to animal systems, plants have also been suggested to possess both positive and antagonistic interactions between nitric oxide and melatonin. In this context, N-nitrosomelatonin is likely to function as another unique biomolecule associated with redox signaling and long-distance communication in plants. Localization and quantification of N-nitrosomelatonin are expected to provide new insights to the current understanding of NO-melatonin cross talk in plants. Methodological advances in imaging, isolation, and quantification of such transient molecule requires further attention. The present review provides an update on the prospects of NO-melatonin cross talk and N-nitrosomelatonin biology in plants. The quest for the biological role of NOmela in plants must lure physiologists to pursue the investigation with solid experimental evidences.


Journal Details

This article was published in the following journal.

Name: Journal of experimental botany
ISSN: 1460-2431


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Medical and Biotech [MESH] Definitions

A free radical gas produced endogenously by a variety of mammalian cells, synthesized from ARGININE by NITRIC OXIDE SYNTHASE. Nitric oxide is one of the ENDOTHELIUM-DEPENDENT RELAXING FACTORS released by the vascular endothelium and mediates VASODILATION. It also inhibits platelet aggregation, induces disaggregation of aggregated platelets, and inhibits platelet adhesion to the vascular endothelium. Nitric oxide activates cytosolic GUANYLATE CYCLASE and thus elevates intracellular levels of CYCLIC GMP.

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A CALCIUM-dependent, constitutively-expressed form of nitric oxide synthase found primarily in ENDOTHELIAL CELLS.

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