Alteromonas hispanica sp. nov., a polyunsaturated-fatty-acid-producing, halophilic bacterium isolated from Fuente de Piedra, southern Spain.

Abstract

Strain F-32T, which produces exopolysaccharides and contains polyunsaturated fatty acids, was isolated from a hypersaline water sample collected from Fuente de Piedra (southern Spain). Phylogenetic analyses indicated conclusively that the strain in question belonged to the genus Alteromonas. Phenotypic tests showed that it could be assigned to the genus Alteromonas although it had a number of distinctive characteristics: it is moderately halophilic, growing best with 7.5-10 % w/v NaCl; it grows at 4 degrees C and produces H2S; it does not grow with d-cellobiose, d-fructose, d-galactose, d-glucose or lactose as sole sources of carbon and energy; and its fatty-acid profile is typical of Alteromonas but it also contains a large amount of an unusual acid with three double bonds [18 : 3omega6c (6, 9, 12); 5.01 %, w/v]. The major isoprenoid quinone is Q8. The DNA G+C content is 46.3 mol%. The phylogenetic, phenotypic and genetic properties of strain F-32T place it within a novel species, for which the name Alteromonas hispanica sp. nov. is proposed. The type strain is F-32T (=CECT 7067T=LMG 22958T).

• Authors: Fernando Martínez-Checa, Victoria Béjar, Inmaculada Llamas, Ana Del Moral, Emilia Quesada
• Journal: International journal of systematic and evolutionary microbiology (Int J Syst Evol Microbiol) Vol. 55 Issue Pt 6 Pg. 2385-2390 (Nov 2005) ISSN: 1466-5026 [Print] England
• PMID: 16280501 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• DNA, Bacterial
• DNA, Ribosomal
• Fatty Acids
• Fatty Acids, Unsaturated
• Quinones

Topics

• Alteromonas (classification, isolation & purification, physiology, ultrastructure)
• Base Composition
• DNA, Bacterial (chemistry, isolation & purification)
• DNA, Ribosomal (chemistry, isolation & purification)
• Fatty Acids (analysis)
• Fatty Acids, Unsaturated (metabolism)
• Molecular Sequence Data
• Phylogeny
• Quinones (analysis)
• Spain