Carboxydocella thermautotrophica gen. nov., sp. nov., a novel anaerobic, CO-utilizing thermophile from a Kamchatkan hot spring
T. G. Sokolova, N. A. Kostrikina, N. A. Chernyh, T. P. Tourova, T. V. Kolganova and E. A. Bonch-Osmolovskaya Institute of Microbiology, Russian Academy of Sciences, Prospect 60 Let Oktyabrya 7/2, 117811 Moscow, Russia A novel anaerobic, thermophilic, CO-utilizing bacterium, strain 41(T), was isolate...
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Published in | International journal of systematic and evolutionary microbiology Vol. 52; no. 6; pp. 1961 - 1967 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Soc General Microbiol
01.11.2002
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Online Access | Get full text |
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Summary: | T. G. Sokolova, N. A. Kostrikina, N. A. Chernyh, T. P. Tourova, T. V. Kolganova and E. A. Bonch-Osmolovskaya
Institute of Microbiology, Russian Academy of Sciences, Prospect 60 Let Oktyabrya 7/2, 117811 Moscow, Russia
A novel anaerobic, thermophilic, CO-utilizing bacterium, strain 41(T), was
isolated from a terrestrial hot vent on the Kamchatka Peninsula. Strain
41(T) was found to be a Gram-positive bacterium, its cells being short,
straight, motile rods. Chains of three to five cells were often observed.
The isolate grew only chemolithoautotrophically on CO, producing equimolar
quantities of H(2) and CO(2) (according to the equation CO+H(2)O ->
CO(2)+H(2)). Growth was observed in the temperature range 40--68 degrees C,
with an optimum at 58 degrees C, and in the pH range 6.5--7.6, with an
optimum at pH 7.0. The generation time under optimal conditions for
chemolithotrophic growth was 1.1 h. The DNA G+C content was 46 +/- 1 mol%.
Growth was completely inhibited by penicillin, ampicillin, streptomycin,
kanamycin and neomycin. On the basis of the phenotypic and phylogenetic
features, it is proposed that this isolate represents a new genus and
species, Carboxydocella thermautotrophica gen. nov., sp. nov. (type strain
41(T)=DSM 12356(T)=VKM B-2282(T)). |
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ISSN: | 1466-5026 1466-5034 |
DOI: | 10.1099/ijs.0.02173-0 |