Article ; Online: Melatonin as a master regulatory hormone for genetic responses to biotic and abiotic stresses in model plant
Functional plant biology : FPB
2024 Volume 51
Abstract: Melatonin is a naturally occurring biologically active amine produced by plants, animals and microbes. This review explores the biosynthesis of melatonin in plants, with a particular focus on its diverse roles in Arabidopsis thaliana , a model species. ... ...
Abstract | Melatonin is a naturally occurring biologically active amine produced by plants, animals and microbes. This review explores the biosynthesis of melatonin in plants, with a particular focus on its diverse roles in Arabidopsis thaliana , a model species. Melatonin affects abiotic and biotic stress resistance in A. thaliana . Exogenous and endogenous melatonin is addressed in association with various conditions, including cold stress, high light stress, intense heat and infection with Botrytis cinerea or Pseudomonas , as well as in seed germination and lateral root formation. Furthermore, melatonin confers stress resistance in Arabidopsis by initiating the antioxidant system, remedying photosynthesis suppression, regulating transcription factors involved with stress resistance (CBF, DREB, ZAT, CAMTA, WRKY33, MYC2, TGA) and other stress-related hormones (abscisic acid, auxin, ethylene, jasmonic acid and salicylic acid). This article additionally addresses other precursors, metabolic components, expression of genes (COR , CBF , SNAT , ASMT , PIN , PR1 , PDF1.2 and HSFA ) and proteins (JAZ, NPR1) associated with melatonin and reducing both biological and environmental stressors. Furthermore, the future perspective of melatonin rich agri-crops is explored to enhance plant tolerance to abiotic and biotic stresses, maximise crop productivity and enhance nutritional worth, which may help improve food security. |
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MeSH term(s) | Arabidopsis/genetics ; Melatonin/metabolism ; Plants/genetics ; Arabidopsis Proteins/genetics ; Cold-Shock Response |
Chemical Substances | Melatonin (JL5DK93RCL) ; Arabidopsis Proteins |
Language | English |
Publishing date | 2024-02-05 |
Publishing country | Australia |
Document type | Review ; Journal Article |
ZDB-ID | 2071582-1 |
ISSN | 1445-4416 ; 1445-4408 |
ISSN (online) | 1445-4416 |
ISSN | 1445-4408 |
DOI | 10.1071/FP23248 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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