Spermine: Its Emerging Role in Regulating Drought Stress Responses in Plants.
abscisic acid
antioxidant enzymes
drought
polyamines
stomata
Journal
Cells
ISSN: 2073-4409
Titre abrégé: Cells
Pays: Switzerland
ID NLM: 101600052
Informations de publication
Date de publication:
28 01 2021
28 01 2021
Historique:
received:
14
01
2021
revised:
23
01
2021
accepted:
26
01
2021
entrez:
2
2
2021
pubmed:
3
2
2021
medline:
15
10
2021
Statut:
epublish
Résumé
In recent years, research on spermine (Spm) has turned up a lot of new information about this essential polyamine, especially as it is able to counteract damage from abiotic stresses. Spm has been shown to protect plants from a variety of environmental insults, but whether it can prevent the adverse effects of drought has not yet been reported. Drought stress increases endogenous Spm in plants and exogenous application of Spm improves the plants' ability to tolerate drought stress. Spm's role in enhancing antioxidant defense mechanisms, glyoxalase systems, methylglyoxal (MG) detoxification, and creating tolerance for drought-induced oxidative stress is well documented in plants. However, the influences of enzyme activity and osmoregulation on Spm biosynthesis and metabolism are variable. Spm interacts with other molecules like nitric oxide (NO) and phytohormones such as abscisic acid, salicylic acid, brassinosteroids, and ethylene, to coordinate the reactions necessary for developing drought tolerance. This review focuses on the role of Spm in plants under severe drought stress. We have proposed models to explain how Spm interacts with existing defense mechanisms in plants to improve drought tolerance.
Identifiants
pubmed: 33525668
pii: cells10020261
doi: 10.3390/cells10020261
pmc: PMC7912026
pii:
doi:
Substances chimiques
Spermine
2FZ7Y3VOQX
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Review
Langues
eng
Sous-ensembles de citation
IM
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