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Volume 67, Issue 9

sp. nov., isolated from a tidal flat Free

Abstract

A Gram-stain-negative, strictly aerobic bacterium, designated KJ21, was isolated from a tidal flat in South Korea. Cells were non-motile rods showing oxidase- and catalase-positive activities. Growth of strain KJ21 was observed at 10–35 °C (optimum, 30 °C), at pH 6.0–8.5 (optimum, pH 7.0) and in the presence of 1–5 % (w/v) NaCl (optimum, 2 %). Strain KJ21 contained summed feature 8 (comprising Cω7/C ω6), C, 10-methyl C and C 3-OH as the major fatty acids and ubiquinone-10 as the major isoprenoid quinone. Phosphatidylglycerol, diphosphatidylglycerol, phosphatidylcholine, an unknown aminolipid and an unknown lipid were detected as the major polar lipids. The G+C content of the genomic DNA was 53.9 mol%. Phylogenic analysis based on 16S rRNA gene sequences showed that strain KJ21 formed a tight phylogenetic lineage with the members of the genus with a 100 % bootstrap value. Strain KJ21 was most closely related to KMM 9031 (98.7 %) and HDW-9 (98.4 %), and the DNA–DNA relatedness values between strain KJ21 and the type strains of and were 46.9±4.2 % and 39.8±5.7, respectively. On the basis of phenotypic, chemotaxonomic and molecular properties, it is clear that strain KJ21 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is KJ21 (=KACC 19098=JCM 31805).

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  • Accepted:
  • Published Online:
Keyword(s): new taxon , Pacificibacter aestuarii and tidal flat
© 2017 IUMS
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2017-09-01
2024-04-24
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Pacificibacter aestuarii sp. nov., isolated from a tidal flat
Int J Syst Evol Microbiol 67, 3627 (2017); https://doi.org/10.1099/ijsem.0.002181
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