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Volume 46, Issue 4

sp. nov., a Modern Lineage of Extremely Thermophilic Marine Bacteria Free

Abstract

A novel extremely thermophilic bacterium was isolated from a shallow marine hydrothermal vent environment (depth, 22 m) in Tachibana Bay, Nagasaki Prefecture, Japan. The cells of this organism were gramnegative rods. Growth occurred at temperatures between 50 and 85°C (optimum temperature, 80°C; doubling time at optimum temperature, 90 min), at pH 5.5 and 9.0 (optimum pH, 7.0), and in the presence of 1 and 5% NaCl (optimum NaCl concentration, 3%). The new isolate was an aerobic heterotroph which utilized the following compounds as sole energy and carbon sources: Yeast extract, peptone, starch, casein, Casamino Acids, a variety of sugars, some carboxylic acids, and amino acids. As determined by a sequence analysis of the 16S rRNA, the new isolate belongs to the genus and represents a modern lineage of extreme thermophiles within the domain . On the basis of the physiological and molecular properties of the new isolate, we describe a new species, . The type strain of is strain OKD7 (= JCM 9785).

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Copyright © 1996 International Union of Microbiological Societies
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1996-10-01
2024-04-25
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Rhodothermus obamensis sp. nov., a Modern Lineage of Extremely Thermophilic Marine Bacteria
Int J Syst Evol Microbiol 46, 1099 (1996); https://doi.org/10.1099/00207713-46-4-1099
/content/journal/ijsem/10.1099/00207713-46-4-1099
/content/journal/ijsem/10.1099/00207713-46-4-1099
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