NtERF283 positively regulates water deficit tolerance in tobacco (Nicotianatabacum L.) by enhancing antioxidant capacity

Copyright © 2024 Elsevier Masson SAS. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Plant physiology and biochemistry : PPB. - 1991. - 207(2024) vom: 15. Feb., Seite 108413
1. Verfasser: Xu, Li (VerfasserIn)
Weitere Verfasser: Liu, Pingping, Li, Xuemei, Mi, Qili, Zheng, Qingxia, Xing, Jiaxin, Yang, Wenwu, Zhou, Huina, Cao, Peijian, Gao, Qian, Xu, Guoyun
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Plant physiology and biochemistry : PPB
Schlagworte:Journal Article Antioxidant capacity Ethylene responsive factor ROS Tobacco Water deficit Antioxidants Reactive Oxygen Species Water 059QF0KO0R Plant Proteins
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520 |a Ethylene responsive factor (ERF) is a plant-specific transcription factor that plays a pivotal regulatory role in various stress responses. Although the genome of tobacco harbors 375 ER F genes, the functional roles of the majority of these genes remain unknown. Expression pattern analysis revealed that NtERF283 was induced by water deficit and salt stresses and mainly expressed in the roots and leaves. Subcellular localization and transcriptional activity assays confirmed that NtERF283 was localized in the nucleus and exhibited transcriptional activity. In comparison to the wild-type (WT), the NtERF283-overexpressing transgenic plants (OE) exhibited enhanced water deficit tolerance, whereas the knockout mutant erf283 displayed contrasting phenotypes. Transcriptional analysis demonstrated that several oxidative stress response genes were significantly altered in OE plants under water deficit conditions. 3,3'-diaminobenzidine (DAB) and nitroblue tetrazolium (NBT) staining showed that erf283 accumulated a higher level of reactive oxygen species (ROS) compared to the WT under water deficit conditions. Conversely, OE plants displayed the least amount of ROS accumulation. Furthermore, the activities of POD and SOD were higher in OE plants and lower in erf283, suggesting that NtERF283 enhanced the capacity to effectively eliminate ROS, consequently enhancing water deficit tolerance in tobacco. These findings strongly indicate the significance of NtERF283 in promoting tobacco water deficit tolerance through the activation of the antioxidant system 
650 4 |a Journal Article 
650 4 |a Antioxidant capacity 
650 4 |a Ethylene responsive factor 
650 4 |a ROS 
650 4 |a Tobacco 
650 4 |a Water deficit 
650 7 |a Antioxidants  |2 NLM 
650 7 |a Reactive Oxygen Species  |2 NLM 
650 7 |a Water  |2 NLM 
650 7 |a 059QF0KO0R  |2 NLM 
650 7 |a Plant Proteins  |2 NLM 
700 1 |a Liu, Pingping  |e verfasserin  |4 aut 
700 1 |a Li, Xuemei  |e verfasserin  |4 aut 
700 1 |a Mi, Qili  |e verfasserin  |4 aut 
700 1 |a Zheng, Qingxia  |e verfasserin  |4 aut 
700 1 |a Xing, Jiaxin  |e verfasserin  |4 aut 
700 1 |a Yang, Wenwu  |e verfasserin  |4 aut 
700 1 |a Zhou, Huina  |e verfasserin  |4 aut 
700 1 |a Cao, Peijian  |e verfasserin  |4 aut 
700 1 |a Gao, Qian  |e verfasserin  |4 aut 
700 1 |a Xu, Guoyun  |e verfasserin  |4 aut 
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773 1 8 |g volume:207  |g year:2024  |g day:15  |g month:02  |g pages:108413 
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