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Photosynthesis in C(3)–C(4) intermediate Moricandia species

Evolution of C(4) photosynthesis is not distributed evenly in the plant kingdom. Particularly interesting is the situation in the Brassicaceae, because the family contains no C(4) species, but several C(3)–C(4) intermediates, mainly in the genus Moricandia. Investigation of leaf anatomy, gas exchang...

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Autores principales: Schlüter, Urte, Bräutigam, Andrea, Gowik, Udo, Melzer, Michael, Christin, Pascal-Antoine, Kurz, Samantha, Mettler-Altmann, Tabea, Weber, Andreas PM
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5853546/
https://www.ncbi.nlm.nih.gov/pubmed/28110276
http://dx.doi.org/10.1093/jxb/erw391
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author Schlüter, Urte
Bräutigam, Andrea
Gowik, Udo
Melzer, Michael
Christin, Pascal-Antoine
Kurz, Samantha
Mettler-Altmann, Tabea
Weber, Andreas PM
author_facet Schlüter, Urte
Bräutigam, Andrea
Gowik, Udo
Melzer, Michael
Christin, Pascal-Antoine
Kurz, Samantha
Mettler-Altmann, Tabea
Weber, Andreas PM
author_sort Schlüter, Urte
collection PubMed
description Evolution of C(4) photosynthesis is not distributed evenly in the plant kingdom. Particularly interesting is the situation in the Brassicaceae, because the family contains no C(4) species, but several C(3)–C(4) intermediates, mainly in the genus Moricandia. Investigation of leaf anatomy, gas exchange parameters, the metabolome, and the transcriptome of two C(3)–C(4) intermediate Moricandia species, M. arvensis and M. suffruticosa, and their close C(3) relative M. moricandioides enabled us to unravel the specific C(3)–C(4) characteristics in these Moricandia lines. Reduced CO(2) compensation points in these lines were accompanied by anatomical adjustments, such as centripetal concentration of organelles in the bundle sheath, and metabolic adjustments, such as the balancing of C and N metabolism between mesophyll and bundle sheath cells by multiple pathways. Evolution from C(3) to C(3)–C(4) intermediacy was probably facilitated first by loss of one copy of the glycine decarboxylase P-protein, followed by dominant activity of a bundle sheath-specific element in its promoter. In contrast to recent models, installation of the C(3)–C(4) pathway was not accompanied by enhanced activity of the C(4) cycle. Our results indicate that metabolic limitations connected to N metabolism or anatomical limitations connected to vein density could have constrained evolution of C(4) in Moricandia.
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spelling pubmed-58535462018-07-27 Photosynthesis in C(3)–C(4) intermediate Moricandia species Schlüter, Urte Bräutigam, Andrea Gowik, Udo Melzer, Michael Christin, Pascal-Antoine Kurz, Samantha Mettler-Altmann, Tabea Weber, Andreas PM J Exp Bot Research Paper Evolution of C(4) photosynthesis is not distributed evenly in the plant kingdom. Particularly interesting is the situation in the Brassicaceae, because the family contains no C(4) species, but several C(3)–C(4) intermediates, mainly in the genus Moricandia. Investigation of leaf anatomy, gas exchange parameters, the metabolome, and the transcriptome of two C(3)–C(4) intermediate Moricandia species, M. arvensis and M. suffruticosa, and their close C(3) relative M. moricandioides enabled us to unravel the specific C(3)–C(4) characteristics in these Moricandia lines. Reduced CO(2) compensation points in these lines were accompanied by anatomical adjustments, such as centripetal concentration of organelles in the bundle sheath, and metabolic adjustments, such as the balancing of C and N metabolism between mesophyll and bundle sheath cells by multiple pathways. Evolution from C(3) to C(3)–C(4) intermediacy was probably facilitated first by loss of one copy of the glycine decarboxylase P-protein, followed by dominant activity of a bundle sheath-specific element in its promoter. In contrast to recent models, installation of the C(3)–C(4) pathway was not accompanied by enhanced activity of the C(4) cycle. Our results indicate that metabolic limitations connected to N metabolism or anatomical limitations connected to vein density could have constrained evolution of C(4) in Moricandia. Oxford University Press 2017-01-21 2016-10-19 /pmc/articles/PMC5853546/ /pubmed/28110276 http://dx.doi.org/10.1093/jxb/erw391 Text en © The Author 2016. Published by Oxford University Press on behalf of the Society for Experimental Biology. http://creativecommons.org/licenses/by/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Paper
Schlüter, Urte
Bräutigam, Andrea
Gowik, Udo
Melzer, Michael
Christin, Pascal-Antoine
Kurz, Samantha
Mettler-Altmann, Tabea
Weber, Andreas PM
Photosynthesis in C(3)–C(4) intermediate Moricandia species
title Photosynthesis in C(3)–C(4) intermediate Moricandia species
title_full Photosynthesis in C(3)–C(4) intermediate Moricandia species
title_fullStr Photosynthesis in C(3)–C(4) intermediate Moricandia species
title_full_unstemmed Photosynthesis in C(3)–C(4) intermediate Moricandia species
title_short Photosynthesis in C(3)–C(4) intermediate Moricandia species
title_sort photosynthesis in c(3)–c(4) intermediate moricandia species
topic Research Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5853546/
https://www.ncbi.nlm.nih.gov/pubmed/28110276
http://dx.doi.org/10.1093/jxb/erw391
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