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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1111/nph.19100
|2 doi
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|a pubmed25n1196.xml
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|a (DE-627)NLM359047041
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|a (NLM)37403528
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Wen, Jingjing
|e verfasserin
|4 aut
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| 245 |
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|a Alternative splicing of TaHSFA6e modulates heat shock protein-mediated translational regulation in response to heat stress in wheat
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 18.08.2023
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|a Date Revised 20.08.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2023 The Authors New Phytologist © 2023 New Phytologist Foundation.
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|a Heat stress greatly threatens crop production. Plants have evolved multiple adaptive mechanisms, including alternative splicing, that allow them to withstand this stress. However, how alternative splicing contributes to heat stress responses in wheat (Triticum aestivum) is unclear. We reveal that the heat shock transcription factor gene TaHSFA6e is alternatively spliced in response to heat stress. TaHSFA6e generates two major functional transcripts: TaHSFA6e-II and TaHSFA6e-III. TaHSFA6e-III enhances the transcriptional activity of three downstream heat shock protein 70 (TaHSP70) genes to a greater extent than does TaHSFA6e-II. Further investigation reveals that the enhanced transcriptional activity of TaHSFA6e-III is due to a 14-amino acid peptide at its C-terminus, which arises from alternative splicing and is predicted to form an amphipathic helix. Results show that knockout of TaHSFA6e or TaHSP70s increases heat sensitivity in wheat. Moreover, TaHSP70s are localized in stress granule following exposure to heat stress and are involved in regulating stress granule disassembly and translation re-initiation upon stress relief. Polysome profiling analysis confirms that the translational efficiency of stress granule stored mRNAs is lower at the recovery stage in Tahsp70s mutants than in the wild types. Our finding provides insight into the molecular mechanisms by which alternative splicing improves the thermotolerance in wheat
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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4 |
|a TaHSFA6e
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| 650 |
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4 |
|a alternative splicing
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| 650 |
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|a polysome profiling
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| 650 |
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|a thermotolerance
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| 650 |
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4 |
|a wheat
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| 650 |
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|a Heat-Shock Proteins
|2 NLM
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| 650 |
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|a Plant Proteins
|2 NLM
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| 700 |
1 |
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|a Qin, Zhen
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sun, Lv
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Yumei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Dongli
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Peng, Huiru
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yao, Yingyin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hu, Zhaorong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ni, Zhongfu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sun, Qixin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xin, Mingming
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t The New phytologist
|d 1979
|g 239(2023), 6 vom: 19. Sept., Seite 2235-2247
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnas
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| 773 |
1 |
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|g volume:239
|g year:2023
|g number:6
|g day:19
|g month:09
|g pages:2235-2247
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| 856 |
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|u http://dx.doi.org/10.1111/nph.19100
|3 Volltext
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|d 239
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