Salirhabdus euzebyi gen. nov., sp. nov., a Gram-positive, halotolerant bacterium isolated from a sea salt evaporation pond

Int J Syst Evol Microbiol. 2007 Jul;57(Pt 7):1566-1571. doi: 10.1099/ijs.0.64999-0.

Abstract

A low-G+C, Gram-positive bacterium, designated CVS-14(T), was recovered from a sea salt evaporation pond on the island of Sal in the Cape Verde Archipelago. This organism was catalase- and oxidase-positive. Cells were motile, spore-forming aerobic rods, with an optimum growth temperature of about 35-40 degrees C and optimum pH between 7.0 and 8.5. Optimal growth occurred in media containing 4-6 % (w/v) NaCl, although the organism was able to grow in medium without added NaCl and in medium containing 16 % NaCl. The cell-wall peptidoglycan was of A1 gamma type and the major respiratory quinone was menaquinone 7 (MK-7). Major fatty acids were iso-15 : 0, anteiso-15 : 0, iso-17 : 0 and anteiso-17 : 0. The DNA G+C content was 37.0 mol%. Phylogenetic analysis of the 16S rRNA gene sequence indicated that strain CVS-14(T) formed a distinct new branch within the radiation of the moderately halophilic bacilli group, forming a separate lineage from species of the genera Salinibacillus, Paucisalibacillus, Oceanobacillus, Lentibacillus and Virgibacillus. Strain CVS-14(T) showed 16S rRNA gene pairwise similarity values of approximately 95 % with species of the genus Salinibacillus. On the basis of morphological, physiological, chemotaxonomic and phylogenetic characteristics, strain CVS-14(T) is considered to represent a novel species in a new genus, for which the name Salirhabdus euzebyi gen. nov., sp. nov. is proposed. The type strain is CVS-14(T) (=LMG 22839(T)=CIP 108577(T)).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Africa, Western
  • Bacillaceae / classification*
  • Bacillaceae / isolation & purification*
  • Bacterial Typing Techniques
  • Base Composition
  • Catalase / analysis
  • Cell Wall / chemistry
  • DNA, Bacterial / chemistry
  • DNA, Bacterial / genetics
  • DNA, Ribosomal / chemistry
  • DNA, Ribosomal / genetics
  • Fatty Acids / analysis
  • Genes, rRNA
  • Hydrogen-Ion Concentration
  • Locomotion
  • Microscopy, Phase-Contrast
  • Molecular Sequence Data
  • Oxidoreductases / analysis
  • Peptidoglycan / analysis
  • Phylogeny
  • Quinones / analysis
  • RNA, Bacterial / genetics
  • RNA, Ribosomal, 16S / genetics
  • Seawater / microbiology*
  • Sequence Analysis, DNA
  • Sequence Homology, Nucleic Acid
  • Sodium Chloride / metabolism
  • Spores, Bacterial
  • Temperature

Substances

  • DNA, Bacterial
  • DNA, Ribosomal
  • Fatty Acids
  • Peptidoglycan
  • Quinones
  • RNA, Bacterial
  • RNA, Ribosomal, 16S
  • Sodium Chloride
  • Oxidoreductases
  • Catalase

Associated data

  • GENBANK/AM292417