Thermodesulfobium acidiphilum sp. nov., a thermoacidophilic, sulfate-reducing, chemoautotrophic bacterium from a thermal site.
Int J Syst Evol Microbiol
; 67(5): 1482-1485, 2017 May.
Article
em En
| MEDLINE
| ID: mdl-27995866
ABSTRACT
An obligately anaerobic, sulfate-reducing micro-organism, strain 3127-1T, was isolated from geothermally heated soil (Oil Site, Uzon Caldera, Kamchatka, Russia). The new isolate was a moderately thermoacidophilic anaerobe able to grow with H2 or formate by respiration of sulfate or thiosulfate. The pH range for growth was 3.7-6.5, with an optimum at 4.8-5.0. The temperature range for growth was 37-65 °C, with an optimum at 55 °C. The G+C content of the genomic DNA was 33.7 mol%. The genome of strain 3127-1T contained two almost identical 16S rRNA genes, differing by a single nucleotide substitution. The closest 16S rRNA gene sequence of a validly published species belonged to Thermodesulfobium narugense Na82T (99.5â% similarity). However, the average nucleotide identity of the genomes of strain 3127-1T and T. narugense Na82T and the predicted DNA-DNA hybridization value (GGDC 2.1 blast+, formula 2) were as low as 86 and 32.5±2.5â%, respectively. This, together with phenotypic data, showed the new isolate to belong to a novel species, for which the name Thermodesulfobium acidiphilum sp. nov. is proposed. The type strain is 3127-1T (=DSM 102892T=VKM B-3043T).
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01-internacional
Base de dados:
MEDLINE
Assunto principal:
Filogenia
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Microbiologia do Solo
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Fontes Termais
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Firmicutes
País/Região como assunto:
Asia
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Europa
Idioma:
En
Ano de publicação:
2017
Tipo de documento:
Article