Skip to Main content Skip to Navigation
Journal articles

Nautilia abyssi sp. nov., a thermophilic, chemolithoautotrophic, sulfur-reducing bacterium isolated from an East Pacific Rise hydrothermal vent

Abstract : A novel strictly anaerobic, thermophilic, sulfur-reducing bacterium, designated PH1209(T), was isolated from an East Pacific Rise hydrothermal vent (1 degrees N) sample and studied using a polyphasic taxonomic approach. Cells were Gram-negative, motile rods (approx. 1.60 x 0.40 microm) with a single polar flagellum. Strain PH1209(T) grew at temperatures between 33 and 65 degrees C (optimum 60 degrees C), from pH 5.0 to 8.0 (optimum 6.0-6.5), and between 2 and 4 % (w/v) NaCl (optimum 3 %). Cells grew chemolithoautotrophically with H(2) as an energy source, S(0) as an electron acceptor and CO(2) as a carbon source. Strain PH1209(T) was also able to use peptone and yeast extract as carbon sources. The G+C content of the genomic DNA was 35 mol%. Phylogenetic analyses based on 16S rRNA gene sequencing showed that strain PH1209(T) fell within the order Nautiliales, in the class Epsilonproteobacteria. Comparative 16S rRNA gene sequence analysis indicated that strain PH1209(T) belonged to the genus Nautilia and shared 97.2 and 98.7 % 16S rRNA gene sequence identity, respectively, with the type strains of Nautilia lithotrophica and Nautilia profundicola. It is proposed, from the polyphasic evidence, that the strain represents a novel species, Nautilia abyssi sp. nov.; the type strain is PH1209(T) (=DSM 21157(T)=JCM 15390(T)).
Document type :
Journal articles
Complete list of metadatas

https://hal.univ-brest.fr/hal-00561034
Contributor : Karine Alain <>
Submitted on : Sunday, July 31, 2011 - 7:00:04 AM
Last modification on : Thursday, January 11, 2018 - 6:16:39 AM
Long-term archiving on: : Tuesday, November 1, 2011 - 2:20:12 AM

File

Alain_et_al_Nautilia_abyssi_sp...
Files produced by the author(s)

Identifiers

Collections

Citation

Karine Alain, Nolwenn Callac, Marianne Guégan, Françoise Lesongeur, Philippe Crassous, et al.. Nautilia abyssi sp. nov., a thermophilic, chemolithoautotrophic, sulfur-reducing bacterium isolated from an East Pacific Rise hydrothermal vent. International Journal of Systematic and Evolutionary Microbiology, Microbiology Society, 2009, 59 (Pt 6), pp.1310-1315. ⟨10.1099/ijs.0.005454-0⟩. ⟨hal-00561034⟩

Share

Metrics

Record views

527

Files downloads

402