Tamarix hispida aquaporin ThPIP2;5 confers salt and osmotic stress tolerance to transgenic Tamarix and Arabidopsis

2018 ◽  
Vol 152 ◽  
pp. 158-166 ◽  
Author(s):  
Liuqiang Wang ◽  
Chunrui Zhang ◽  
Yanmin Wang ◽  
Yucheng Wang ◽  
Chuanping Yang ◽  
...  
Keyword(s):  
Osmotic Stress ◽  
Stress Tolerance ◽  
Tamarix Hispida ◽  
Osmotic Stress Tolerance ◽  
Salt And Osmotic Stress

scholarly journals The NAC Protein from Tamarix hispida, ThNAC7, Confers Salt and Osmotic Stress Tolerance by Increasing Reactive Oxygen Species Scavenging Capability

Plants ◽  
2019 ◽  
Vol 8 (7) ◽  
pp. 221 ◽  
Author(s):  
Zihang He ◽  
Ziyi Li ◽  
Huijun Lu ◽  
Lin Huo ◽  
Zhibo Wang ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Abiotic Stress ◽  
Osmotic Stress ◽  
Stress Tolerance ◽  
Oxygen Species ◽  
Tamarix Hispida ◽  
Ros Scavenging ◽  
Transcription Level ◽  
Osmotic Stress Tolerance ◽  
Salt And Osmotic Stress

Plant specific NAC (NAM, ATAF1/2 and CUC2) transcription factors (TFs) play important roles in response to abiotic stress. In this study, we identified and characterized a NAC protein, ThNAC7, from Tamarix hispida. ThNAC7 is a nuclear localized protein and has transcriptional activation activity. ThNAC7 expression was markedly induced by salt and osmotic stresses. Transiently transformed T. hispida seedlings overexpressing ThNAC7 (OE) or with RNA interference (RNAi) silenced ThNAC7 were generated to investigate abiotic stress tolerance via the gain- and loss- of function. Overexpressing ThNAC7 showed an increased reactive oxygen species (ROS) scavenging capabilities and proline content, which was accomplished by enhancing the activities of superoxide dismutase (SOD) and peroxidase (POD) in transiently transformed T. hispida and stably transformed Arabidopsis plants. Additionally, ThNAC7 activated these physiological changes by regulating the transcription level of P5CS, SOD and POD genes. RNA-sequencing (RNA-seq) comparison between wild-type and ThNAC7-transformed Arabidopsis showed that more than 40 known salt tolerance genes might regulated by ThNAC7, including stress tolerance-related genes and TF genes. The results indicated that ThNAC7 induces the transcription level of genes associated with stress tolerance to enhance salt and osmotic stress tolerance via an increase in osmotic potential and enhanced ROS scavenging.

scholarly journals The grapevine VvWRKY2 gene enhances salt and osmotic stress tolerance in transgenic Nicotiana tabacum

3 Biotech ◽  
2018 ◽  
Vol 8 (6) ◽  
Author(s):  
Rim Mzid ◽  
Walid Zorrig ◽  
Rayda Ben Ayed ◽  
Karim Ben Hamed ◽  
Mariem Ayadi ◽  
...  
Keyword(s):  
Nicotiana Tabacum ◽  
Osmotic Stress ◽  
Stress Tolerance ◽  
Osmotic Stress Tolerance ◽  
Salt And Osmotic Stress ◽  
Transgenic Nicotiana Tabacum
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