Melatonin Mediates Enhancement of Stress Tolerance in Plants

International Journal of Molecular Sciences
Biswojit DebnathDongliang Qiu

Abstract

Melatonin is a multifunctional signaling molecule, ubiquitously distributed in different parts of plants and responsible for stimulating several physiological responses to adverse environmental conditions. In the current review, we showed that the biosynthesis of melatonin occurred in plants by themselves, and accumulation of melatonin fluctuated sharply by modulating its biosynthesis and metabolic pathways under stress conditions. Melatonin, with its precursors and derivatives, acted as a powerful growth regulator, bio-stimulator, and antioxidant, which delayed leaf senescence, lessened photosynthesis inhibition, and improved redox homeostasis and the antioxidant system through a direct scavenging of reactive oxygen species (ROS) and reactive nitrogen species (RNS) under abiotic and biotic stress conditions. In addition, exogenous melatonin boosted the growth, photosynthetic, and antioxidant activities in plants, confirming their tolerances against drought, unfavorable temperatures, salinity, heavy metals, acid rain, and pathogens. However, future research, together with recent advancements, would support emerging new approaches to adopt strategies in overcoming the effect of hazardous environments on crops and may have potent...Continue Reading

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Citations

Feb 23, 2020·Journal of Experimental Botany·Hannah M SchneiderJonathan P Lynch
Jun 24, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Md Shakhawat HossainBaili Feng
May 28, 2020·International Journal of Molecular Sciences·Juan C Mayo, Rosa M Sainz
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Oct 23, 2019·International Journal of Molecular Sciences·Ok Jin Hwang, Kyoungwhan Back
Dec 11, 2019·International Journal of Molecular Sciences·Ying ZhuXuan Huang
Dec 12, 2020·Physiologia Plantarum·Rahul Kumar TiwariGaurav Zinta
Feb 11, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Biswojit DebnathDongliang Qiu
Oct 23, 2020·Physiology and Molecular Biology of Plants : an International Journal of Functional Plant Biology·Tanveer Ahmad KhanMohd Saleem
Mar 29, 2020·Food Chemistry·Su-Yan WangPedro Laborda
May 12, 2021·Plant Cell Reports·Xianrong ZhouVinay Kumar
Jun 6, 2021·Environmental Science and Pollution Research International·Rana RoyMd Ghulam Rabbany
Jun 25, 2021·Plant Physiology and Biochemistry : PPB·Yandi WuChonghuai Liu

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Methods Mentioned

BETA
environmental stress
transgenic

Software Mentioned

HIOMT

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