title: Haloarcula quadrata sp. nov., a square, motile archaeon isolated from a brine pool in Sinai (Egypt).
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.
authors.affiliation: Division of Microbial and Molecular Ecology, Institute of Life Sciences, Hebrew University of Jerusalem, Israel. orena@shum.cc.huji.ac.il
authors.forename: A
authors.initials: A
authors.lastname: Oren
authors.forename: A
authors.initials: A
authors.lastname: Ventosa
authors.forename: M C
authors.initials: MC
authors.lastname: Gutiérrez
authors.forename: M
authors.initials: M
authors.lastname: Kamekura
mesh_terms: D001482:Base Composition; D019641:DNA, Archaeal / Q000737:chemistry / Q000235:genetics; D004275:DNA, Ribosomal / Q000737:chemistry / Q000235:genetics; D004534:Egypt; D020459:Genes, rRNA; D019613:Haloarcula / Q000145:classification* / Q000166:cytology / Q000235:genetics / Q000302:isolation & purification / Q000502:physiology; D008055:Lipids / Q000032:analysis; D008969:Molecular Sequence Data; D009693:Nucleic Acid Hybridization; D010641:Phenotype; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D012623:Seawater / Q000382:microbiology*; D012965:Sodium Chloride / Q000378:metabolism
chemical_list: D019641:DNA, Archaeal; D004275:DNA, Ribosomal; D008055:Lipids; D012336:RNA, Ribosomal, 16S; D012965:Sodium Chloride