RRC ID 3049
Author Vandieken V, Knoblauch C, Jørgensen BB.
Title Desulfotomaculum arcticum sp. nov., a novel spore-forming, moderately thermophilic, sulfate-reducing bacterium isolated from a permanently cold fjord sediment of Svalbard.
Journal Int J Syst Evol Microbiol
Abstract Strain 15T is a novel spore-forming, sulfate-reducing bacterium isolated from a permanently cold fjord sediment of Svalbard. Sulfate could be replaced by sulfite or thiosulfate. Hydrogen, formate, lactate, propionate, butyrate, hexanoate, methanol, ethanol, propanol, butanol, pyruvate, malate, succinate, fumarate, proline, alanine and glycine were used as electron donors in the presence of sulfate. Growth occurred with pyruvate as sole substrate. Optimal growth was observed at pH 7.1-7.5 and concentrations of 1-1.5 % NaCl and 0.4 % MgCl2. Strain 15T grew between 26 and 46.5 degrees C and optimal growth occurred at 44 degrees C. Therefore, strain 15T apparently cannot grow at in situ temperatures of Arctic sediments from where it was isolated, and it was proposed that it was present in the sediment in the form of spores. The DNA G+C content was 48.9 mol%. Strain 15T was most closely related to Desulfotomaculum thermosapovorans MLF(T) (93.5 % 16S rRNA gene sequence similarity). Strain 15T represents a novel species, for which the name Desulfotomaculum arcticum sp. nov. is proposed. The type strain is strain 15T (=DSM 17038T = JCM 12923T).
Volume 56(Pt 4)
Pages 687-690
Published 2006-4-1
DOI 10.1099/ijs.0.64058-0
PMID 16585677
MeSH Cold Temperature DNA, Bacterial / analysis DNA, Ribosomal / analysis Desulfotomaculum / classification* Desulfotomaculum / genetics Desulfotomaculum / growth & development* Desulfotomaculum / isolation & purification Geologic Sediments / microbiology* Molecular Sequence Data Phylogeny RNA, Ribosomal, 16S / analysis RNA, Ribosomal, 16S / genetics Spores, Bacterial Sulfates / metabolism* Sulfur-Reducing Bacteria / classification Sulfur-Reducing Bacteria / genetics Sulfur-Reducing Bacteria / isolation & purification Svalbard Thermosensing
IF 2.415
Times Cited 23
Pathogenic microorganisms JCM 12923?