Abstract
A Gram-negative, aerobic, short rod-shaped and non-motile bacterium, designated SWA25T, was isolated from Chinese fermented fish sauce in Shantou, Guangdong Province, China. Strain SWA25T was moderately halophilic, formed colourless colonies and grew at 10–45 °C (optimum, 37 °C) and pH 4–9 (optimum, 6–7) in the presence of 0.5–22.5 % (w/v) NaCl (optimum, 3 %). The major cellular fatty acids (>10 %) were identified as C18:1 ω7C, C16:0, C16:1 ω7c, and C19:0 cyclo ω8c, and the predominant respiratory ubiquinone was Q-9. The genomic DNA G+C content was 61.3 ± 2.1 mol %. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain SWA25T belonged to the genus Halomonas in the family Halomonadaceae. The closest relatives were Halomonas xianhensis A-1T (96.5 % 16S rRNA gene sequence similarity), H. lutea DSM 23508T (96.5 %) and H. muralis LMG 20969T (96.1 %). DNA–DNA hybridization assays showed 30.7 ± 2.6 % relatedness between strain SWA25T and H. xianhensis A-1T, and 39.4 ± 4.1 % between strain SWA25T and H. lutea DSM 23508T. On the basis of phenotypic, chemotaxonomic and phylogenetic features, strain SWA25T should be placed in the genus Halomonas as a representative of a novel species. The name Halomonas shantousis sp. nov. is proposed, with SWA25T(=CCTCC AB 2013151T = JCM 19368T) as the type strain.
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The research was funded by Natural Science Foundation of China (No.31101330 and 31371731) and Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT 1188).
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Jiang, W., Li, C., Xu, B. et al. Halomonas shantousis sp. nov., a novel biogenic amines degrading bacterium isolated from Chinese fermented fish sauce. Antonie van Leeuwenhoek 106, 1073–1080 (2014). https://doi.org/10.1007/s10482-014-0275-4
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DOI: https://doi.org/10.1007/s10482-014-0275-4