Calcium-Dependent Protein Kinase GhCDPK16 Exerts a Positive Regulatory Role in Enhancing Drought Tolerance in Cotton

Cotton is essential for the textile industry as a primary source of natural fibers. However, environmental factors like drought present significant challenges to its cultivation, adversely affecting both production levels and fiber quality. Enhancing cotton's drought resilience has the potentia...

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Veröffentlicht in:International journal of molecular sciences 2024-08, Vol.25 (15), p.8308
Hauptverfasser: Yan, Mengyuan, Chai, Meijie, Li, Libei, Dong, Zhiwei, Jin, Hongmiao, Tan, Ming, Ye, Ziwei, Yu, Shuxun, Feng, Zhen
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container_issue 15
container_start_page 8308
container_title International journal of molecular sciences
container_volume 25
creator Yan, Mengyuan
Chai, Meijie
Li, Libei
Dong, Zhiwei
Jin, Hongmiao
Tan, Ming
Ye, Ziwei
Yu, Shuxun
Feng, Zhen
description Cotton is essential for the textile industry as a primary source of natural fibers. However, environmental factors like drought present significant challenges to its cultivation, adversely affecting both production levels and fiber quality. Enhancing cotton's drought resilience has the potential to reduce yield losses and support the growth of cotton farming. In this study, the cotton calcium-dependent protein kinase GhCDPK16 was characterized, and the transcription level of was significantly upregulated under drought and various stress-related hormone treatments. Physiological analyses revealed that the overexpression of improved drought stress resistance in Arabidopsis by enhancing osmotic adjustment capacity and boosting antioxidant enzyme activities. In contrast, silencing in cotton resulted in increased dehydration compared with the control. Furthermore, reduced antioxidant enzyme activities and downregulation of ABA-related genes were observed in -silenced plants. These findings not only enhanced our understanding of the biological functions of and the mechanisms underlying drought stress resistance but also underscored the considerable potential of in improving drought resilience in cotton.
doi_str_mv 10.3390/ijms25158308
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source MDPI - Multidisciplinary Digital Publishing Institute; MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; PubMed Central
subjects Abiotic stress
Abscisic acid
Amino acids
Arabidopsis - genetics
Arabidopsis - physiology
Cotton
Cotton industry
Cytoplasm
Drought
Drought Resistance - genetics
Environmental conditions
Gene Expression Regulation, Plant
Genes
Gossypium - genetics
Gossypium - metabolism
Gossypium - physiology
Hormones
Kinases
Localization
Phosphorylation
Plant Proteins - genetics
Plant Proteins - metabolism
Plant resistance
Plants, Genetically Modified
Protein kinases
Protein Kinases - genetics
Protein Kinases - metabolism
Proteins
Stress, Physiological
title Calcium-Dependent Protein Kinase GhCDPK16 Exerts a Positive Regulatory Role in Enhancing Drought Tolerance in Cotton
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