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231224s2012 xx |||||o 00| ||eng c |
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|a 10.1111/j.1469-8137.2012.04353.x
|2 doi
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|a eng
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| 100 |
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|a Zhang, Zengyan
|e verfasserin
|4 aut
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| 245 |
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|a An R2R3 MYB transcription factor in wheat, TaPIMP1, mediates host resistance to Bipolaris sorokiniana and drought stresses through regulation of defense- and stress-related genes
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|c 2012
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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 25.04.2013
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|a Date Revised 30.03.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2012 The Authors. New Phytologist © 2012 New Phytologist Trust.
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|a In this study, we report new insights into the function of a wheat (Triticum aestivum) MYB gene TaPIMP1 through overexpression and underexpression, and its underlying mechanism in wheat. Electrophoretic mobility shift and yeast-one-hybrid assays indicated that TaPIMP1 can bind to five MYB-binding sites including ACI, and activate the expression of the genes with the cis-element, confirming that TaPIMP1 is an MYB transcription activator. TaPIMP1-overexpressing transgenic wheat exhibited significantly enhanced resistance to the fungal pathogen Bipolaris sorokiniana and drought stresses, whereas TaPIMP1-underexpressing transgenic wheat showed more susceptibility to the stresses compared with untransformed wheat, revealing that TaPIMP1 positively modulates host-defense responses to B. sorokiniana and drought stresses. Microarray analysis showed that a subset of defense- and stress-related genes were up-regulated by TaPIMP1. These genes, including TaPIMP1, RD22, TLP4 and PR1a, were regulated by ABA and salicylic acid (SA). TaPIMP1-underexpressing transgenic wheat showed compromised induction of these stress-responsive genes following ABA and SA treatments. In summary, TaPIMP1, as a positive molecular linker, mediates resistance to B. sorokiniana and drought stresses by regulation of stress-related genes in ABA- and SA-signaling pathways in wheat. Furthermore, TaPIMP1 may provide a transgenic tool for engineering multiple-resistance wheat in breeding programs
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Plant Proteins
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|a Transcription Factors
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| 700 |
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|a Liu, Xin
|e verfasserin
|4 aut
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|a Wang, Xindong
|e verfasserin
|4 aut
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| 700 |
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|a Zhou, Miaoping
|e verfasserin
|4 aut
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|a Zhou, Xianyao
|e verfasserin
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|a Ye, Xingguo
|e verfasserin
|4 aut
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|a Wei, Xuening
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
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|g 196(2012), 4 vom: 23. Dez., Seite 1155-1170
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|x 1469-8137
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|g pages:1155-1170
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|u http://dx.doi.org/10.1111/j.1469-8137.2012.04353.x
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