RdreB1BI enhances drought tolerance by activating AQP-related genes in transgenic strawberry

Copyright © 2017 Elsevier Masson SAS. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Plant physiology and biochemistry : PPB. - 1991. - 119(2017) vom: 02. Okt., Seite 33-42
1. Verfasser: Gu, Xianbin (VerfasserIn)
Weitere Verfasser: Gao, Zhihong, Yan, Yichao, Wang, Xiuyun, Qiao, Yushan, Chen, Yahua
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2017
Zugriff auf das übergeordnete Werk:Plant physiology and biochemistry : PPB
Schlagworte:Journal Article Drought stress PIPs RdreB1BI Strawberry Aquaporins Plant Proteins Transcription Factors
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520 |a Copyright © 2017 Elsevier Masson SAS. All rights reserved. 
520 |a The dehydration-responsive element binding protein (DREB) family of transcription factors is associated with abiotic stress responses during plant growth and development. This study focussed on the subfamily member DREB1B, which was initially described as highly and specifically responsive to low temperature. However, here it is shown that DREB1B is not only involved in cold tolerance but also other abiotic stress tolerances, such as that of drought. To further understand the genetic improvement effects of the drought tolerance provided by RdreB1BI in transgenic strawberry, drought stress responses of transgenic plants were evaluated at the morphological, physiological, and transcriptional levels. Transactivation assays revealed that RdreB1BI could activate the FvPIP2;1 like 1 promoter. RdreB1BI transgenic plants showed enhanced drought tolerance on the basis of lower rates of electrolyte leakage (EL), higher relative water content (RWC), and less stomatal aperture as well as increased peroxidase (POD) and superoxide dismutase (SOD) activities and less malondialdehyde (MDA) accumulation. The transgenic plants also accumulated higher levels of drought-related regulatory genes and functional gene transcripts, including those of PIP, NAC, RD22, ABI, and NCED. Together, these results demonstrate that RdreB1BI plays an essential role in the regulation of the drought stress response. DREB1B transcription constitutes a useful strategy to exploit in transgenic plants for coping with abiotic stresses, at least cold and drought stresses. The approach may be helpful for genetic engineering horticultural plants to have increased environmental adaptations 
650 4 |a Journal Article 
650 4 |a Drought stress 
650 4 |a PIPs 
650 4 |a RdreB1BI 
650 4 |a Strawberry 
650 7 |a Aquaporins  |2 NLM 
650 7 |a Plant Proteins  |2 NLM 
650 7 |a Transcription Factors  |2 NLM 
700 1 |a Gao, Zhihong  |e verfasserin  |4 aut 
700 1 |a Yan, Yichao  |e verfasserin  |4 aut 
700 1 |a Wang, Xiuyun  |e verfasserin  |4 aut 
700 1 |a Qiao, Yushan  |e verfasserin  |4 aut 
700 1 |a Chen, Yahua  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Plant physiology and biochemistry : PPB  |d 1991  |g 119(2017) vom: 02. Okt., Seite 33-42  |w (DE-627)NLM098178261  |x 1873-2690  |7 nnns 
773 1 8 |g volume:119  |g year:2017  |g day:02  |g month:10  |g pages:33-42 
856 4 0 |u http://dx.doi.org/10.1016/j.plaphy.2017.08.013  |3 Volltext 
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