sp. nov., isolated from an estuarine wetland Free

Abstract

A bacterium, designated strain CJ16, was isolated from the estuarine wetland of the Han River. Cells of the isolate were yellow-pigmented, Gram-stain-negative, non-motile and rod-shaped. Growth of strain CJ16 was observed in TSB at 5–37 °C (optimum 30 °C), at pH 5.0–9.0 (optimum pH 6.0) and with 0–3 % (w/v) NaCl (optimum 0 %). Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain CJ16 was most closely related to KCTC 22545 (97.2 % 16S rRNA gene sequence similarity). Genomic relatedness based on DNA–DNA hybridization between strain CJ16 and KCTC 22545 was 23 % (strain CJ16 as probe) and 19 % (strain KCTC 22545 as probe). Chemotaxonomic analysis revealed that strain CJ16 possessed MK-6 as the major isoprenoid quinone and -homospermidine as the predominant polyamine. The predominant fatty acids were iso-C (26.9 %), iso-C 3-OH (16.8 %) and summed feature 9 (comprising C 10-methyl and/or iso-Cω9; 10.5 %). The DNA G+C content of strain CJ16 was 37.9 mol%. Based on phenotypic, genotypic and phylogenetic studies, strain CJ16 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is CJ16 ( = KACC 16560  = JCM 18078).

Funding
This study was supported by the:
  • National Institute of Biological Resources (NIBR)
  • Technology Development Program for Agriculture and Forestry (TDPAF) of the Ministry for Agriculture, Forestry and Fisheries
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2013-03-01
2024-03-29
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