1887

Abstract

A Gram-stain-negative, aerobic, non-motile, rod-shaped bacterial strain, designated CAU 1488, was isolated from tidal flat sediment, and its taxonomic position was investigated using a polyphasic approach. The organism grew optimally at a temperature of 30 °C, at pH 7.0–7.5 and in the presence of 0–6 % (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain CAU 1488 forms a lineage distinct from ZGT 118 (97.9 %), ZH17 (97.6 %), ITI 1157 (97.5 %), DSS-3 (97.1 %), ZGT108 (97.0 %), CC-GIMAT-2 (96.8 %), CECT 4292 (96.7 %) and J95 (95.9 %). Genome sequencing revealed that CAU 1488 had a genome size of 4.23 Mbp and a G+C content of 63.2 mol%. Overall genome related indexes including average nucleotide identity and digital DNA–DNA hybridization values were 75.0–83.0 % and 26.2 %, which are below the cutoffs of 95 and 70 %, respectively, indicating that strain CAU 1488 represents a distinct species from the members of the genus . The predominant quinone was ubiquinone-10 (Q-10). The major fatty acids were summed feature 8 (C ω7ω6; 60.7 %) and its polar lipids consisted of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylcholine and unidentified aminolipids. On the basis of phenotypic, chemotaxonomic and genomic data, strain CAU 1488 constitutes a novel species of the genus , for which the name sp. nov. is proposed. The type strain is CAU 1488 (=KCTC 62996=NBRC 113693).

Funding
This study was supported by the:
  • Chung-Ang University (Award 2018)
    • Principle Award Recipient: Wonyong Kim
  • National Institute of Biological Resources (Award oo)
    • Principle Award Recipient: Wonyong Kim
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2020-03-20
2024-03-28
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