» Articles » PMID: 33578910

Anthocyanins Are Key Regulators of Drought Stress Tolerance in Tobacco

Overview
Journal Biology (Basel)
Publisher MDPI
Specialty Biology
Date 2021 Feb 13
PMID 33578910
Citations 40
Authors
Affiliations
Soon will be listed here.
Abstract

Abiotic stresses will be one of the major challenges for worldwide food supply in the near future. Therefore, it is important to understand the physiological mechanisms that mediate plant responses to abiotic stresses. When subjected to UV, salinity or drought stress, plants accumulate specialized metabolites that are often correlated with their ability to cope with the stress. Among them, anthocyanins are the most studied intermediates of the phenylpropanoid pathway. However, their role in plant response to abiotic stresses is still under discussion. To better understand the effects of anthocyanins on plant physiology and morphogenesis, and their implications on drought stress tolerance, we used transgenic tobacco plants (AN1), which over-accumulated anthocyanins in all tissues. AN1 plants showed an altered phenotype in terms of leaf gas exchanges, leaf morphology, anatomy and metabolic profile, which conferred them with a higher drought tolerance compared to the wild-type plants. These results provide important insights for understanding the functional reason for anthocyanin accumulation in plants under stress.

Citing Articles

Exploring the Genetic Basis of Drought Tolerance in : A Comprehensive Transcriptome Study of Osmotic Stress Adaptations.

Tang G, Li X, Zeng F, Ma J, Guan P, Zhang B Int J Mol Sci. 2024; 25(23).

PMID: 39684437 PMC: 11641545. DOI: 10.3390/ijms252312725.


Evolutionary analysis of anthocyanin biosynthetic genes: insights into abiotic stress adaptation.

Buitrago S, Yang X, Wang L, Pan R, Zhang W Plant Mol Biol. 2024; 115(1):6.

PMID: 39680184 DOI: 10.1007/s11103-024-01540-y.


Integrated Analysis of Transcriptome and Metabolome Provides Insights into Flavonoid Biosynthesis of Blueberry Leaves in Response to Drought Stress.

Feng X, Bai S, Zhou L, Song Y, Jia S, Guo Q Int J Mol Sci. 2024; 25(20).

PMID: 39456917 PMC: 11508776. DOI: 10.3390/ijms252011135.


Transcriptomic and Metabolomic Profiling of Root Tissue in Drought-Tolerant and Drought-Susceptible Wheat Genotypes in Response to Water Stress.

Ling Hu , Lv X, Zhang Y, Du W, Fan S, Kong L Int J Mol Sci. 2024; 25(19).

PMID: 39408761 PMC: 11476764. DOI: 10.3390/ijms251910430.


Exogenous Substances Used to Relieve Plants from Drought Stress and Their Associated Underlying Mechanisms.

Feng D, Liu W, Chen K, Ning S, Gao Q, Chen J Int J Mol Sci. 2024; 25(17).

PMID: 39273198 PMC: 11395679. DOI: 10.3390/ijms25179249.


References
1.
DAmelia V, Raiola A, Carputo D, Filippone E, Barone A, Rigano M . A basic Helix-Loop-Helix (SlARANCIO), identified from a Solanum pennellii introgression line, affects carotenoid accumulation in tomato fruits. Sci Rep. 2019; 9(1):3699. PMC: 6403429. DOI: 10.1038/s41598-019-40142-3. View

2.
Hughes N, Carpenter K, Cannon J . Estimating contribution of anthocyanin pigments to osmotic adjustment during winter leaf reddening. J Plant Physiol. 2012; 170(2):230-3. DOI: 10.1016/j.jplph.2012.09.006. View

3.
Carillo P, Mastrolonardo G, Nacca F, Parisi D, Verlotta A, Fuggi A . Nitrogen metabolism in durum wheat under salinity: accumulation of proline and glycine betaine. Funct Plant Biol. 2020; 35(5):412-426. DOI: 10.1071/FP08108. View

4.
Lo Piccolo E, Landi M, Pellegrini E, Agati G, Giordano C, Giordani T . Multiple Consequences Induced by Epidermally-Located Anthocyanins in Young, Mature and Senescent Leaves of . Front Plant Sci. 2018; 9:917. PMC: 6036500. DOI: 10.3389/fpls.2018.00917. View

5.
Yokoyama T, Kadla J, Chang H . Microanalytical method for the characterization of fiber components and morphology of woody plants. J Agric Food Chem. 2002; 50(5):1040-4. DOI: 10.1021/jf011173q. View