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INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY logo

Volume 71, Issue 10

sp. nov., a carboxymethyl cellulose-hydrolysing bacterium isolated from coastal water No Access

Abstract

A Gram-stain-negative, rod-shaped, non-motile, red-pink bacterium designated SD6 was isolated from coastal marine water at Sadong Beach, Ulleung Island, South Korea. Cells of SD6 grew at 10–42 °C (optimum, 30 °C), pH 5.0–9.0 (optimum, pH 6.0–7.0) and at 0–8.0 % (w/v) NaCl (optimum, 0–3 %). Moreover, 16S rRNA gene sequence analysis indicated that strain SD6 was a member of the genus , sharing similarities to XAAS-1 (98.0 %), 9-2 (97.3 %), X14-1 (97.2 %) and HYL7-26 (96.8 %). The predominant fatty acids of strain SD6 were identified as iso-C and summed feature 4 (comprising anteiso-C B and/or iso-C I) and the sole respiratory quinone was identified as MK-7 (menaquinone 7). Major polar lipids included phosphatidylethanolamine, one unidentified phosphoglycolipid, two unidentified glycolipids and one unidentified lipid. The average nucleotide identity and DNA–DNA hybridization values of strain SD6 with its closely related strains were 72.8–79.8 % and 19.2–22.6 %, respectively. The genomic DNA G+C content was 45.4 mol%. In accordance with the results of phenotypic, chemotaxonomic and phylogenetic data, strain SD6 represents a novel species of the genus r, for which the name sp. nov. is proposed. The type strain is SD6 (=KACC 21543=NBRC 114313=JCM 31022).

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Keyword(s): carboxymethyl cellulose , carotenoids , coastal surface seawater , Hymenobacteraceae , Pontibacter and Pontibacter cellulosilyticus
© 2021 The Authors
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2021-10-25
2024-04-25
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Pontibacter cellulosilyticus sp. nov., a carboxymethyl cellulose-hydrolysing bacterium isolated from coastal water
Int J Syst Evol Microbiol 71, 005058 (2021); https://doi.org/10.1099/ijsem.0.005058
/content/journal/ijsem/10.1099/ijsem.0.005058
/content/journal/ijsem/10.1099/ijsem.0.005058
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