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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erab185
|2 doi
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|a eng
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|a Liu, Xin-Yuan
|e verfasserin
|4 aut
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|a ZmPPR26, a DYW-type pentatricopeptide repeat protein, is required for C-to-U RNA editing at atpA-1148 in maize chloroplasts
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|c 2021
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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 09.08.2021
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|a Date Revised 09.08.2021
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|a published: Print
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|a Citation Status MEDLINE
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|a © The Author(s) 2021. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com.
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|a Pentatricopeptide repeat (PPR) proteins are involved in the C-to-U RNA editing of organellar transcripts. The maize genome contains over 600 PPR proteins and few have been found to function in the C-to-U RNA editing in chloroplasts. Here, we report the function of ZmPPR26 in the C-to-U RNA editing and chloroplast biogenesis in maize. ZmPPR26 encodes a DYW-type PPR protein targeted to chloroplasts. The zmppr26 mutant exhibits albino seedling-lethal phenotype. Loss of function of ZmPPR26 abolishes the editing at atpA-1148 site, and decreases the editing at ndhF-62, rpl20-308, rpl2-2, rpoC2-2774, petB-668, rps8-182, and ndhA-50 sites. Overexpression of ZmPPR26 in zmppr26 restores the editing efficiency and rescues the albino seedling-lethal phenotype. Abolished editing at atpA-1148 causes a Leu to Ser change at AtpA-383 that leads to a reduction in the abundance of chloroplast ATP synthase in zmppr26. The accumulation of photosynthetic complexes are also markedly reduced in zmppr26, providing an explanation for the albino seedling-lethal phenotype. These results indicate that ZmPPR26 is required for the editing at atpA-1148 and is important for editing at the other seven sites in maize chloroplasts. The editing at atpA-1148 is critical for AtpA function, assembly of ATP synthase complex, and chloroplast biogenesis in maize
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a ATP synthase
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|a RNA editing
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|a ZmPPR26
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|a chloroplast
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|a maize
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|a pentatricopeptide repeat proteins
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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 Jiang, Rui-Cheng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Yong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tang, Jiao-Jiao
|e verfasserin
|4 aut
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| 700 |
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|a Sun, Feng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yang, Yan-Zhuo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tan, Bao-Cai
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 72(2021), 13 vom: 22. Juni, Seite 4809-4821
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
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|g volume:72
|g year:2021
|g number:13
|g day:22
|g month:06
|g pages:4809-4821
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|u http://dx.doi.org/10.1093/jxb/erab185
|3 Volltext
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