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Volume 65, Issue Pt_2

sp. nov., an agar-digesting bacterium isolated from seaweed, and emended description of the genus Free

Abstract

A taxonomic study was carried out on strain YN3, which was isolated from a seaweed sample taken from the coast of Weihai, China. The bacterium was Gram-stain-negative, rod-shaped, and could grow at pH 5.0–10.0 and 4–32 °C in the presence of 0–9.0 % (w/v) NaCl. Strain YN3 was positive for the hydrolysis of polysaccharides, such as agar, starch and xylan. The predominant respiratory quinone was ubiquinone-8. The major fatty acids were Cω7 and/or iso-C 2-OH, C and Cω7. The main polar lipids were diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine, and two unidentified glycolipids. The genomic DNA G+C content was 49.4 mol%. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain YN3 should be assigned to the genus . ‘’ KCTC 23325 and QM42 had the closest phylogenetic relationship to strain YN3, and showed 97.9 % and 95.8 % sequence similarities, respectively. On the basis of phenotypic, chemotaxonomic and genotypic data and DNA–DNA hybridization studies, we propose that strain YN3 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is YN3 ( = KCTC 32438 = JCM 19198). An emended description of the genus is also presented.

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Funding
This study was supported by the:
  • National Natural Science Foundation of China (Award project no. 31170001)
  • Zhejiang Provincial Natural Science Foundation of China (Award contract no. LQ13D060002)
  • Scientific Research Fund of the Second Institute of Oceanography, SOA (Award contract no. JT1305)
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2015-02-01
2024-04-19
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Gilvimarinus polysaccharolyticus sp. nov., an agar-digesting bacterium isolated from seaweed, and emended description of the genus Gilvimarinus
Int J Syst Evol Microbiol 65, 562 (2015); https://doi.org/10.1099/ijs.0.065078-0
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