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  Sodium-dependent succinate decarboxylation by a new anaerobic bacterium belonging to the genus Peptostreptococcus

Janssen, P., Liesack, W., Kluge, C., Seeliger, S., Schink, B., & Harfoot, C. (1996). Sodium-dependent succinate decarboxylation by a new anaerobic bacterium belonging to the genus Peptostreptococcus. ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY, 70(1), 11-20. doi:10.1007/BF00393565.

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Janssen, PH1, Autor
Liesack, W2, Autor                 
Kluge, C1, Autor
Seeliger, S1, Autor
Schink, B1, Autor
Harfoot, CG1, Autor
Affiliations:
1external, ou_persistent22              
2Department of Biogeochemistry, Alumni, Max Planck Institute for Terrestrial Microbiology, Max Planck Society, ou_3266312              

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 Zusammenfassung: An anaerobic bacterium was isolated from a polluted sediment, with succinate and yeast extract as carbon and energy sources. The new strain was Gram-positive, the cells were coccal shaped, the mol% G+C content of the genomic DNA was 29, and the peptidoglycan was of the L-ornithine-D-glutamic acid type. Comparative sequence analysis of the 16S rRNA gene showed the new strain to belong to the genus Peptostreptococcus. Succinate, fumarate, pyruvate, 3-hydroxybutyrate and lysine supported growth. Succinate was degraded to propionate and presumably CO2, with a stoichiometric cell yield. Key enzymes of the methylmalonyl-CoA decarboxylase pathway were present. The methylmalonyl-CoA decarboxylase activity was avidin-sensitive and sodium dependent, and about 5 mM Na+ was required for maximal activity. Whole cells, however, required at least 50 mM sodium for maximal succinate decarboxylation activity and to support the maximum growth rate. Sodium-dependent energy conservation coupled to succinate decarboxylation is shown for the first time to occur in a bacterium belonging to the group of Gram-positive bacteria containing the peptostreptococci and their relatives.

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 Datum: 1996
 Publikationsstatus: Erschienen
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 Identifikatoren: ISI: A1996UZ29100002
DOI: 10.1007/BF00393565
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Titel: ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 70 (1) Artikelnummer: - Start- / Endseite: 11 - 20 Identifikator: ISSN: 0003-6072