Haloarcula quadrata sp. nov., a square, motile archaeon isolated from a brine pool in Sinai (Egypt)

Int J Syst Bacteriol. 1999 Jul:49 Pt 3:1149-55. doi: 10.1099/00207713-49-3-1149.

Abstract

The motile, predominantly square-shaped, red archaeon strain 801030/1T, isolated from a brine pool in the Sinai peninsula (Egypt), was characterized taxonomically. On the basis of its polar lipid composition, the nucleotide sequences of its two 16S rRNA genes, the DNA G+C content (60.1 mol%) and its growth characteristics, the isolate could be assigned to the genus Haloarcula. However, phylogenetic analysis of the two 16S rRNA genes detected in this organism and low DNA-DNA hybridization values with related Haloarcula species showed that strain 801030/1T is sufficiently different from the recognized Haloarcula species to warrant its designation as a new species. A new species, Haloarcula quadrata, is therefore proposed, with strain 801030/1T (= DSM 11927T) as the type strain.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Base Composition
  • DNA, Archaeal / chemistry
  • DNA, Archaeal / genetics
  • DNA, Ribosomal / chemistry
  • DNA, Ribosomal / genetics
  • Egypt
  • Genes, rRNA
  • Haloarcula / classification*
  • Haloarcula / cytology
  • Haloarcula / genetics
  • Haloarcula / isolation & purification
  • Haloarcula / physiology
  • Lipids / analysis
  • Molecular Sequence Data
  • Nucleic Acid Hybridization
  • Phenotype
  • Phylogeny
  • RNA, Ribosomal, 16S / genetics
  • Seawater / microbiology*
  • Sodium Chloride / metabolism

Substances

  • DNA, Archaeal
  • DNA, Ribosomal
  • Lipids
  • RNA, Ribosomal, 16S
  • Sodium Chloride

Associated data

  • GENBANK/AB010964
  • GENBANK/AB010965