Sodium-dependent succinate decarboxylation by a new anaerobic bacterium belonging to the genus Peptostreptococcus
Sodium-dependent succinate decarboxylation by a new anaerobic bacterium belonging to the genus Peptostreptococcus
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1996
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Antonie van Leeuwenhoek ; 70 (1996), 1. - S. 11-20. - ISSN 0003-6072. - eISSN 1572-9699
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 CO:, 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.
Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
570 Biowissenschaften, Biologie
Schlagwörter
anaerobic degradation,energetics,methylmalonyl-CoA decarboxylase,Peptostreptococcus,sodiumdependent energy conservation,succinate
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JANSSEN, Peter H., Werner LIESACK, Claudia KLUGE, Sabine SEELIGER, Bernhard SCHINK, Chris G. HARFOOT, 1996. Sodium-dependent succinate decarboxylation by a new anaerobic bacterium belonging to the genus Peptostreptococcus. In: Antonie van Leeuwenhoek. 70(1), pp. 11-20. ISSN 0003-6072. eISSN 1572-9699. Available under: doi: 10.1007/BF00393565BibTex
@article{Janssen1996Sodiu-7351, year={1996}, doi={10.1007/BF00393565}, title={Sodium-dependent succinate decarboxylation by a new anaerobic bacterium belonging to the genus Peptostreptococcus}, number={1}, volume={70}, issn={0003-6072}, journal={Antonie van Leeuwenhoek}, pages={11--20}, author={Janssen, Peter H. and Liesack, Werner and Kluge, Claudia and Seeliger, Sabine and Schink, Bernhard and Harfoot, Chris G.} }
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