Comparative biochemistry of CO2 fixation and the evolution of autotrophy
NAGIOS: RODERIC FUNCIONANDO

Comparative biochemistry of CO2 fixation and the evolution of autotrophy

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Comparative biochemistry of CO2 fixation and the evolution of autotrophy

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dc.contributor.author Peretó, Juli
dc.contributor.author Velasco, Ana Maria
dc.contributor.author Becerra, Arturo
dc.contributor.author Lezcano, Antonio
dc.date.accessioned 2010-06-03T07:42:46Z
dc.date.available 2010-06-03T07:42:46Z
dc.date.issued 1999
dc.identifier.uri http://hdl.handle.net/10550/12852
dc.description.abstract Carbon dioxide fixation is a polyphyletic trait that has evolved in widely separated prokaryotic branches. The three principal CO2-assimilation pathways are (i) the reductive pentose-phosphate cycle, i. e. the Calvin-Benson cycle; (ii) the reductive citric acid (or Arnon) cycle; and (iii) the net synthesis of acetyl-CoA from CO/CO2, or Wood pathway. Sequence analysis and the comparative biochemistry of these routes suggest that all of them were shaped to a considerable extent by the evolutionary recruitment of enzymes. Molecular phylogenetic trees show that the Calvin-Benson cycle was a relatively late development in the (eu)bacterial branch, suggesting that some form(s) of carbon assimilation may have been operative before chlorophyll-based photosynthesis. On the other hand, the ample phylogenetic distribution of both the Arnon and the Wood pathways does not allow us to infer which one of them is older. However, different lines of evidence, including experimental reports on the NiS/FeS-mediated C–C bond formation from CO and CH3SH are used here to argue that the first CO2-fixation route may have been a semienzymatic Wood-like pathway. en
dc.language.iso en en
dc.relation http://www.im.microbios.org/05march99/03%20Pereto.pdf en
dc.source Pereto Magraner, Juli; Velasco, Ana Maria; Becerra, Arturo; Lezcano, Antonio. Comparative biochemistry of CO2 fixation and the evolution of autotrophy. En International Microbiology, Nº 2 (1): 3-10, 1999 en
dc.subject Calvin-Benson cycle; Arnon cycle; Wood pathway; Semi-enzymatic synthesis; Carbon dioxide assimilation en
dc.title Comparative biochemistry of CO2 fixation and the evolution of autotrophy en
dc.type info:eu-repo/semantics/article en
dc.type info:eu-repo/semantics/publishedVersion en
dc.subject.unesco UNESCO::CIENCIAS DE LA VIDA::Microbiología en
dc.description.private pereto@uv.es; en

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