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231224s2016 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erw122
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|a DE-627
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|e rakwb
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|a eng
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|a Fang, Linchuan
|e verfasserin
|4 aut
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|a Expression of Vitis amurensis NAC26 in Arabidopsis enhances drought tolerance by modulating jasmonic acid synthesis
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|c 2016
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 16.11.2017
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|a Date Revised 25.03.2024
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|a published: Print
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|a Citation Status MEDLINE
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|a © The Author 2016. Published by Oxford University Press on behalf of the Society for Experimental Biology.
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|a The growth and fruit quality of grapevines are widely affected by abnormal climatic conditions such as water deficits, but many of the precise mechanisms by which grapevines respond to drought stress are still largely unknown. Here, we report that VaNAC26, a member of the NAC transcription factor family, was upregulated dramatically during cold, drought and salinity treatments in Vitis amurensis, a cold and drought-hardy wild Vitis species. Heterologous overexpression of VaNAC26 enhanced drought and salt tolerance in transgenic Arabidopsis. Higher activities of antioxidant enzymes and lower concentrations of H2O2 and O2 (-) were found in VaNAC26-OE lines than in wild type plants under drought stress. These results indicated that scavenging by reactive oxygen species (ROS) was enhanced by VaNAC26 in transgenic lines. Microarray-based transcriptome analysis revealed that genes related to jasmonic acid (JA) synthesis and signaling were upregulated in VaNAC26-OE lines under both normal and drought conditions. VaNAC26 showed a specific binding ability on the NAC recognition sequence (NACRS) motif, which broadly exists in the promoter regions of upregulated genes in transgenic lines. Endogenous JA content significantly increased in the VaNAC26-OE lines 2 and 3. Our data suggest that VaNAC26 responds to abiotic stresses and may enhance drought tolerance by transcriptional regulation of JA synthesis in Arabidopsis
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Drought stress
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|a JA biosynthesis
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|a ROS
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|a VaNAC26
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|a Vitis amurensis.
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|a transcriptional regulation
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|a Antioxidants
|2 NLM
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|a Cyclopentanes
|2 NLM
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|a Oxylipins
|2 NLM
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|a Plant Growth Regulators
|2 NLM
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|a Transcription Factors
|2 NLM
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|a jasmonic acid
|2 NLM
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|a 6RI5N05OWW
|2 NLM
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|a Su, Lingye
|e verfasserin
|4 aut
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|a Sun, Xiaoming
|e verfasserin
|4 aut
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|a Li, Xinbo
|e verfasserin
|4 aut
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|a Sun, Mengxiang
|e verfasserin
|4 aut
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|a Karungo, Sospeter Karanja
|e verfasserin
|4 aut
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|a Fang, Shuang
|e verfasserin
|4 aut
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|a Chu, Jinfang
|e verfasserin
|4 aut
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|a Li, Shaohua
|e verfasserin
|4 aut
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|a Xin, Haiping
|e verfasserin
|4 aut
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 67(2016), 9 vom: 24. Apr., Seite 2829-45
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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|g volume:67
|g year:2016
|g number:9
|g day:24
|g month:04
|g pages:2829-45
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|u http://dx.doi.org/10.1093/jxb/erw122
|3 Volltext
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