Abstract:
:A bacterial isolate from the Baltic Sea, BA160(T), was characterized for its physiological and biochemical features, fatty acid profile, G+C content and phylogenetic position based on 16S rRNA gene sequences. The strain was isolated from the surface water of the central Baltic Sea during the decay of a plankton bloom. Phylogenetic analyses of the 16S rRNA gene sequence revealed a clear affiliation with the family 'Flexibacteraceae', and showed the closest phylogenetic relationship with the species Belliella baltica and Cyclobacterium marinum. The G+C content of the DNA was 38.4 mol%. The strain was red-coloured due to carotenoids, Gram-negative, rod-shaped, and catalase- and oxidase-positive. Growth was observed at salinities from 0 to 6 %, with an optimum around 1.5 %. Temperature for growth ranged from 4 to 40 degrees C, with an optimum around 30 degrees C. The fatty acids were dominated by branched-chain fatty acids (>87 %), with a high abundance of iso-C(15 : 0) (23 %) and anteiso-C(15 : 0) (19 %). According to its morphology, physiology, fatty acid composition, G+C content and 16S rRNA gene sequence, strain BA160(T) is considered to represent a new genus of the family 'Flexibacteraceae'. Due to its aquatic origin, the name Aquiflexum balticum gen. nov, sp. nov. is suggested for the type species (type strain, BA160(T)=DSM 16537(T)=LMG 22565(T)=CIP 108445(T)) of the new genus.
journal_name
Int J Syst Evol Microbiolauthors
Brettar I,Christen R,Höfle MGdoi
10.1099/ijs.0.63255-0keywords:
subject
Has Abstractpub_date
2004-11-01 00:00:00pages
2335-2341issue
Pt 6eissn
1466-5026issn
1466-5034journal_volume
54pub_type
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