Thalassobaculum salexigens sp. nov., a new member of the family Rhodospirillaceae from the NW Mediterranean Sea, and emended description of the genus Thalassobaculum.
A novel Gram-negative bacteria, named CZ41_10a(T), was isolated from coastal surface waters of the north-western Mediterranean Sea. Cells were motile, pleomorphic rods, 1.6 mum long and 0.7 mum wide and formed cream colonies on marine agar medium. The G+C content of the genomic DNA was 65 mol%. Phylogenetic analysis of 16S rRNA gene sequences placed the new isolate in the genus Thalassobaculum, a member of the family Rhodospirillaceae, class Alphaproteobacteria. Unlike Thalassobaculum litoreum CL-GR58(T), its closest relative, strain CZ41_10a(T) was unable to grow anaerobically and did not exhibit nitrate reductase activity. On the basis of DNA-DNA hybridization, fatty acid content and physiological and biochemical characteristics, this isolate represents a novel species for which the name Thalassobaculum salexigens sp. nov. is proposed. The type strain is CZ41_10a(T) (=DSM 19539(T)=CIP 109604(T)=MOLA [corrected] 84(T)). An emended description of the genus Thalassobaculum is also given.
Urios
Laurent
L
UPMC Univ Paris 6, Laboratoire ARAGO, UMR 7621, Observatoire Océanologique, F-66651 Banyuls/mer, France.
Michotey
Valérie
V
Laboratoire de Microbiologie, de Géochimie et d'Ecologie Marines, CNRS-UMR 6117, Centre d'Océanologie de Marseille, Campus de Luminy, Case 901, 13288 Marseille Cedex 9, France.
Intertaglia
Laurent
L
UPMC Univ Paris 6, Laboratoire ARAGO, UMR 7621, Observatoire Océanologique, F-66651 Banyuls/mer, France.
Lesongeur
Françoise
F
Laboratoire de Microbiologie des Environnements Extrêmes, UMR 6197, IFREMER, Centre de Brest, BP 70, 29280 Plouzané, France.
Lebaron
Philippe
P
UPMC Univ Paris 6, Laboratoire ARAGO, UMR 7621, Observatoire Océanologique, F-66651 Banyuls/mer, France.
D001482:Base Composition; D004269:DNA, Bacterial / Q000235:genetics; D004275:DNA, Ribosomal / Q000235:genetics; D005227:Fatty Acids / Q000378:metabolism; D019083:Mediterranean Region; D008969:Molecular Sequence Data; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D012244:Rhodospirillaceae / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification* / Q000378:metabolism; D012623:Seawater / Q000382:microbiology*
D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D005227:Fatty Acids; D012336:RNA, Ribosomal, 16S