Dioscorea composita WRKY12 is involved in the regulation of salt tolerance by directly activating the promoter of AtRCI2A

Copyright © 2023 Elsevier Masson SAS. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Plant physiology and biochemistry : PPB. - 1991. - 196(2023) vom: 15. März, Seite 746-758
1. Verfasser: Yu, Shangjie (VerfasserIn)
Weitere Verfasser: He, Zhanxin, Gao, Kaixiang, Zhou, Jianchan, Lan, Xin, Zhong, Chunmei, Xie, Jun
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2023
Zugriff auf das übergeordnete Werk:Plant physiology and biochemistry : PPB
Schlagworte:Journal Article DcWRKY12 Dioscorea composita Osmotic stress Salt stress WRKY Transcription Factors Abscisic Acid 72S9A8J5GW Plant Proteins
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520 |a Dioscorea composita (D. composita) is an important medicinal plant worldwide with high economic value. However, its large-scale cultivation was limited by soil salinization. Identification of genes and their mechanisms of action in response to salt stress are critically important. In the present study, we isolated a classical WRKY transcription factor from D. composita, namely DcWRKY12, and analyzed its function in salt tolerance. Expression pattern analysis showed DcWRKY12 is mainly expressed in roots and significantly induced by NaCl, polyethylene glycol-6000 (PEG-6000), and abscisic acid (ABA). Phenotypic and physiological analyses revealed that heterologous expression of DcWRKY12 enhanced salt and osmotic stress tolerance by increasing antioxidant enzyme activity, osmoregulatory substance content, maintaining relative water content and ion homeostasis, decreasing reactive oxygen species and malondialdehyde content. Correspondingly, the overexpression of DcWRKY12 modulated the expression of salt stress-responsive and ion transport-related genes. Dual luciferase assay and Y1H were further confirmed that DcWRKY12 activates the promoter of AtRCI2A through directly binding to the specific W-box cis-acting elements. These results suggest that DcWRKY12 is a positive regulator of salt tolerance in D. composita and has potential applications in salt stress 
650 4 |a Journal Article 
650 4 |a DcWRKY12 
650 4 |a Dioscorea composita 
650 4 |a Osmotic stress 
650 4 |a Salt stress 
650 4 |a WRKY 
650 7 |a Transcription Factors  |2 NLM 
650 7 |a Abscisic Acid  |2 NLM 
650 7 |a 72S9A8J5GW  |2 NLM 
650 7 |a Plant Proteins  |2 NLM 
700 1 |a He, Zhanxin  |e verfasserin  |4 aut 
700 1 |a Gao, Kaixiang  |e verfasserin  |4 aut 
700 1 |a Zhou, Jianchan  |e verfasserin  |4 aut 
700 1 |a Lan, Xin  |e verfasserin  |4 aut 
700 1 |a Zhong, Chunmei  |e verfasserin  |4 aut 
700 1 |a Xie, Jun  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Plant physiology and biochemistry : PPB  |d 1991  |g 196(2023) vom: 15. März, Seite 746-758  |w (DE-627)NLM098178261  |x 1873-2690  |7 nnns 
773 1 8 |g volume:196  |g year:2023  |g day:15  |g month:03  |g pages:746-758 
856 4 0 |u http://dx.doi.org/10.1016/j.plaphy.2023.02.020  |3 Volltext 
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