A non-tandem CCCH-type zinc-finger protein, IbC3H18, functions as a nuclear transcriptional activator and enhances abiotic stress tolerance in sweet potato

A non-tandem CCCH-type zinc-finger protein, IbC3H18, functions as a nuclear transcriptional activator and enhances abiotic stress tolerance in sweet potato

© 2019 The Authors. New Phytologist © 2019 New Phytologist Trust.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 223(2019), 4 vom: 01. Sept., Seite 1918-1936
1. Verfasser: Zhang, Huan (VerfasserIn)
Weitere Verfasser: Gao, Xiaoru, Zhi, Yuhai, Li, Xu, Zhang, Qian, Niu, Jinbiao, Wang, Jun, Zhai, Hong, Zhao, Ning, Li, Jigang, Liu, Qingchang, He, Shaozhen
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2019
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't IbC3H18 IbPR5 nontandem CCCH-type zinc-finger protein oxidation tolerance salt and drought tolerance sweet potato Plant Proteins Reactive Oxygen Species mehr... Trans-Activators Sodium Chloride 451W47IQ8X Abscisic Acid 72S9A8J5GW
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245 1 2 |a A non-tandem CCCH-type zinc-finger protein, IbC3H18, functions as a nuclear transcriptional activator and enhances abiotic stress tolerance in sweet potato 
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520 |a © 2019 The Authors. New Phytologist © 2019 New Phytologist Trust. 
520 |a CCCH-type zinc-finger proteins play essential roles in regulating plant development and stress responses. However, the molecular and functional properties of non-tandem CCCH-type zinc-finger (non-TZF) proteins have been rarely characterized in plants. Here, we report the biological and molecular characterization of a sweet potato non-TZF gene, IbC3H18. We show that IbC3H18 exhibits tissue- and abiotic stress-specific expression, and could be effectively induced by abiotic stresses, including NaCl, polyethylene glycol (PEG) 6000, H2 O2 and abscisic acid (ABA) in sweet potato. Accordingly, overexpression of IbC3H18 led to increased, whereas knock-down of IbC3H18 resulted in decreased tolerance of sweet potato to salt, drought and oxidation stresses. In addition, IbC3H18 functions as a nuclear transcriptional activator and regulates the expression of a range of abiotic stress-responsive genes involved in reactive oxygen species (ROS) scavenging, ABA signaling, photosynthesis and ion transport pathways. Moreover, our data demonstrate that IbC3H18 physically interacts with IbPR5, and that overexpression of IbPR5 enhances salt and drought tolerance in transgenic tobacco plants. Collectively, our data indicate that IbC3H18 functions in enhancing abiotic stress tolerance in sweet potato, which may serve as a candidate gene for use in improving abiotic stress resistance in crops 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a IbC3H18 
650 4 |a IbPR5 
650 4 |a nontandem CCCH-type zinc-finger protein 
650 4 |a oxidation tolerance 
650 4 |a salt and drought tolerance 
650 4 |a sweet potato 
650 7 |a Plant Proteins  |2 NLM 
650 7 |a Reactive Oxygen Species  |2 NLM 
650 7 |a Trans-Activators  |2 NLM 
650 7 |a Sodium Chloride  |2 NLM 
650 7 |a 451W47IQ8X  |2 NLM 
650 7 |a Abscisic Acid  |2 NLM 
650 7 |a 72S9A8J5GW  |2 NLM 
700 1 |a Gao, Xiaoru  |e verfasserin  |4 aut 
700 1 |a Zhi, Yuhai  |e verfasserin  |4 aut 
700 1 |a Li, Xu  |e verfasserin  |4 aut 
700 1 |a Zhang, Qian  |e verfasserin  |4 aut 
700 1 |a Niu, Jinbiao  |e verfasserin  |4 aut 
700 1 |a Wang, Jun  |e verfasserin  |4 aut 
700 1 |a Zhai, Hong  |e verfasserin  |4 aut 
700 1 |a Zhao, Ning  |e verfasserin  |4 aut 
700 1 |a Li, Jigang  |e verfasserin  |4 aut 
700 1 |a Liu, Qingchang  |e verfasserin  |4 aut 
700 1 |a He, Shaozhen  |e verfasserin  |4 aut 
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773 1 8 |g volume:223  |g year:2019  |g number:4  |g day:01  |g month:09  |g pages:1918-1936 
856 4 0 |u http://dx.doi.org/10.1111/nph.15925  |3 Volltext 
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