Journal
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
Volume 62, Issue -, Pages 3013-3017Publisher
MICROBIOLOGY SOC
DOI: 10.1099/ijs.0.036871-0
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- Republic of China's Council of Agriculture
- National Science Council
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A Gram-staining negative, motile, non-spore-forming, short rod-shaped (0.8-1.5x1.5-2.0 mu m), halophilic bacterium, designated strain NTU-107(T), was isolated from brine samples collected from the abandoned Beimen saltern in southern Taiwan. The novel strain grew with 0-15 % (w/v) NaCl (optimum between 5 % and 10 %), at 15-55 degrees C (optimum 40 degrees C) and at pH 5.5-9.5 (optimum pH 7.5). The major cellular fatty acids were C-18:1 omega 7c, C-16:0 and C-19:0 cyclo omega 8c, the genomic DNA G+C content was 66.5 mol%, and the predominant ubiquinone was Q-9. The major polar lipids included phosphatidylglycerol, diphosphatidylglycerol and phosphatidylethanolamine. In a phylogenetic analysis based on 16S rRNA gene sequences, strain NTU-107(T) clustered with members of the genus Halomonas. In hybridization experiments, however, the levels of DNA DNA relatedness between strain NTU-107(T) and the type strains of its closest phylogenetic neighbours (Halomonas koreensis, H. organivorans and H. ventosae) were all found to be less than 40%. Based on the phenotypic, chemotaxonomic and genetic data, strain NTU-107(T) represents a novel species Within the genus Halomonas, for which the name Halomonas beimenensis sp. nov. is proposed. The type strain is NTU-107(T) (=BCRC 17999(T)=KCTC 22876(T)=JCM 16084(T)).
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