Co-Consumption of Methanol and Succinate by Methylobacterium extorquens AM1

Verfasser / Beitragende:
[Rémi Peyraud, Patrick Kiefer, Philipp Christen, Jean-Charles Portais, Julia A. Vorholt]
Ort, Verlag, Jahr:
2012
Enthalten in:
PLoS ONE, 7 (11), p. e48271
Format:
Artikel (online)
ID: 528786911
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024 7 0 |a 10.3929/ethz-b-000059756  |2 doi 
024 7 0 |a 10.1371/journal.pone.0048271  |2 doi 
035 |a (ETHRESEARCH)oai:www.research-collecti.ethz.ch:20.500.11850/59756 
245 0 0 |a Co-Consumption of Methanol and Succinate by Methylobacterium extorquens AM1  |h [Elektronische Daten]  |c [Rémi Peyraud, Patrick Kiefer, Philipp Christen, Jean-Charles Portais, Julia A. Vorholt] 
246 0 |a PLoS ONE 
506 |a Open access  |2 ethresearch 
520 3 |a Methylobacterium extorquens AM1 is a facultative methylotrophic Alphaproteobacterium and has been subject to intense study under pure methylotrophic as well as pure heterotrophic growth conditions in the past. Here, we investigated the metabolism of M. extorquens AM1 under mixed substrate conditions, i.e., in the presence of methanol plus succinate. We found that both substrates were co-consumed, and the carbon conversion was two-thirds from succinate and one-third from methanol relative to mol carbon. 13C-methanol labeling and liquid chromatography mass spectrometry analyses revealed the different fates of the carbon from the two substrates. Methanol was primarily oxidized to CO2 for energy generation. However, a portion of the methanol entered biosynthetic reactions via reactions specific to the one-carbon carrier tetrahydrofolate. In contrast, succinate was primarily used to provide precursor metabolites for bulk biomass production. This work opens new perspectives on the role of methylotrophy when substrates are simultaneously available, a situation prevailing under environmental conditions. 
540 |a Creative Commons Attribution 3.0 Unported  |u http://creativecommons.org/licenses/by/3.0  |2 ethresearch 
700 1 |a Peyraud  |D Rémi  |e joint author 
700 1 |a Kiefer  |D Patrick  |e joint author 
700 1 |a Christen  |D Philipp  |e joint author 
700 1 |a Portais  |D Jean-Charles  |e joint author 
700 1 |a Vorholt  |D Julia A.  |e joint author 
773 0 |t PLoS ONE  |d Lawrence, KS, USA : Public Library of Science  |g 7 (11), p. e48271  |x 1932-6203 
856 4 0 |u http://hdl.handle.net/20.500.11850/59756  |q text/html  |z WWW-Backlink auf das Repository (Open access) 
908 |D 1  |a Journal Article  |2 ethresearch 
950 |B ETHRESEARCH  |P 856  |E 40  |u http://hdl.handle.net/20.500.11850/59756  |q text/html  |z WWW-Backlink auf das Repository (Open access) 
950 |B ETHRESEARCH  |P 700  |E 1-  |a Peyraud  |D Rémi  |e joint author 
950 |B ETHRESEARCH  |P 700  |E 1-  |a Kiefer  |D Patrick  |e joint author 
950 |B ETHRESEARCH  |P 700  |E 1-  |a Christen  |D Philipp  |e joint author 
950 |B ETHRESEARCH  |P 700  |E 1-  |a Portais  |D Jean-Charles  |e joint author 
950 |B ETHRESEARCH  |P 700  |E 1-  |a Vorholt  |D Julia A.  |e joint author 
950 |B ETHRESEARCH  |P 773  |E 0-  |t PLoS ONE  |d Lawrence, KS, USA : Public Library of Science  |g 7 (11), p. e48271  |x 1932-6203 
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949 |B ETHRESEARCH  |F ETHRESEARCH  |b ETHRESEARCH  |j Journal Article  |c Open access