PubMed · 7811855
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E Wolinsky. 1994. Conventional diagnostic methods for tuberculosis.. https://doi.org/10.1093/clinids%2F19.3.396
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A disc-shaped methanogenic bacterium designated strain SEBR 4847T (T = type strain) was isolated from a sample collected from an African offshore oil field. Strain SEBR 4847T was non-motile, had a G + C content of 50 mol% and produced methane from H2 + CO2, formate, and CO2 + propanol. Strain SEBR 4847T grew optimally at 37 degrees C; no growth was observed at 25 degrees C or 45 degrees C. It grew in the presence of up to 50 g/l NaCl; 10-30 g/l was required for optimal growth. The optimum pH for growth was 7.0. Doubling time was about 10 h under optimal conditions. Based on 16S rRNA sequence analysis, the isolate was identified as a new species of the genus Methanoplanus and designated Methanoplanus petrolearius sp. nov. The type strain is SEBR 4847T (= OCM 486).
A strictly anaerobic, moderately halophilic, Gram-negative, non-motile rod-shaped bacterium was isolated from an oil-well head sample of an offshore Congolese oil field. The strain, designated SEBR 4224T (T = type strain), grew optimally at 42 degrees C and pH 7.0 in a complex medium containing 10% NaCl with a generation time of 2.5 h. Strain SEBR 4224T grew on a range of carbohydrates including fructose, galactose, D-glucose, maltose, D-mannose, D-ribose, sucrose, and trehalose. Yeast extract and/or bio-Trypcase was required for growth on carbohydrates and could not be replaced with amino acids and/or vitamins. The end-products from glucose fermentation were acetate, H2, and CO2. Thiosulfate and elemental sulfur were used as electron acceptors. Thiosulfate improved carbohydrate utilization and biomass yields. The G + C content of the isolate was 34 mol%. Ribosomal 16S rRNA sequence analysis showed that strain SEBR 4224T is a new member of the genus Haloanaerobium. The lack of DNA homology with H. acetoethylicum, its closest relative, as determined by DNA-DNA hybridization supports the designation of strain SEBR 4224T as a new species, Haloanaerobium congolense sp. nov. The type strain is SEBR 4224T (= DSM 11287).
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