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231224s2016 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erw041
|2 doi
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| 041 |
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|a eng
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|a Döring, Florian
|e verfasserin
|4 aut
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|a Most photorespiratory genes are preferentially expressed in the bundle sheath cells of the C4 grass Sorghum bicolor
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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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|a ƒa Online-Ressource
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|a Date Completed 01.09.2017
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|a Date Revised 25.03.2024
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|a published: Print-Electronic
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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 One of the hallmarks of C4 plants is the division of labor between two different photosynthetic cell types, the mesophyll and the bundle sheath cells. C4 plants are of polyphyletic origin and, during the evolution of C4 photosynthesis, the expression of thousands of genes was altered and many genes acquired a cell type-specific or preferential expression pattern. Several lines of evidence, including computational modeling and physiological and phylogenetic analyses, indicate that alterations in the expression of a key photorespiration-related gene, encoding the glycine decarboxylase P subunit, was an early and important step during C4 evolution. Restricting the expression of this gene to the bundle sheath led to the establishment of a photorespiratory CO2 pump. We were interested in whether the expression of genes related to photorespiration remains bundle sheath specific in a fully optimized C4 species. Therefore we analyzed the expression of photorespiratory and C4 cycle genes using RNA in situ hybridization and transcriptome analysis of isolated mesophyll and bundle sheath cells in the C4 grass Sorghum bicolor It turns out that the C4 metabolism of Sorghum is based solely on the NADP-dependent malic enzyme pathway. The majority of photorespiratory gene expression, with some important exceptions, is restricted to the bundle sheath
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a C4 photosynthesis
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|a CO2 fixation
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|a Sorghum bicolor.
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| 650 |
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|a differential gene expression
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|a evolution
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|a photorespiration
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| 650 |
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|a RNA, Plant
|2 NLM
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|a Streubel, Monika
|e verfasserin
|4 aut
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|a Bräutigam, Andrea
|e verfasserin
|4 aut
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| 700 |
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|a Gowik, Udo
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 67(2016), 10 vom: 15. Mai, Seite 3053-64
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
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|g volume:67
|g year:2016
|g number:10
|g day:15
|g month:05
|g pages:3053-64
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|u http://dx.doi.org/10.1093/jxb/erw041
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