Könneke, Martin;
Schubert, Daniel M.;
Brown, Philip C.;
Hügler, Michael;
Standfest, Sonja;
Schwander, Thomas;
Schada von Borzyskowski, Lennart;
Erb, Tobias J.;
Stahl, David A.;
Berg, Ivan A.
Ammonia-oxidizing archaea use the most energy-efficient aerobic pathway for CO 2 fixation
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Medientyp:
E-Artikel
Titel:
Ammonia-oxidizing archaea use the most energy-efficient aerobic pathway for CO 2 fixation
Beteiligte:
Könneke, Martin;
Schubert, Daniel M.;
Brown, Philip C.;
Hügler, Michael;
Standfest, Sonja;
Schwander, Thomas;
Schada von Borzyskowski, Lennart;
Erb, Tobias J.;
Stahl, David A.;
Berg, Ivan A.
Erschienen:
Proceedings of the National Academy of Sciences, 2014
Erschienen in:Proceedings of the National Academy of Sciences
Sprache:
Englisch
DOI:
10.1073/pnas.1402028111
ISSN:
0027-8424;
1091-6490
Entstehung:
Anmerkungen:
Beschreibung:
<jats:title>Significance</jats:title>
<jats:p>
CO
<jats:sub>2</jats:sub>
fixation is the most important biosynthesis process on Earth, enabling autotrophic organisms to synthesize their entire biomass from inorganic carbon at the expense of energy generated by photo- or chemotrophic processes. In the present study we demonstrate an autotrophy pathway that represents the most energy-efficient mechanism for fixing inorganic carbon in the presence of oxygen. This novel variant of the hydroxypropionate/hydroxybutyrate cycle appears to be common in a ubiquitous and abundant group of microorganisms that can thrive in nutrient-limited environments. This discovery offers a biochemical explanation for the remarkable ecological success of the ammonia-oxidizing archaea in extremely nutrient-limited environments typical of most of the open ocean.
</jats:p>