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Arenicella chitinivorans sp nov., a gammaproteobacterium isolated from the sea urchin Strongylocentrotus intermedius
Nedashkovskaya, O.I.; Cleenwerck, I.; Zhukova, N.V.; Kim, S.B.; de Vos, P. (2013). Arenicella chitinivorans sp nov., a gammaproteobacterium isolated from the sea urchin Strongylocentrotus intermedius. Int. J. Syst. Evol. Microbiol. 63: 4124-4129. dx.doi.org/10.1099/ijs.0.051599-0
In: International Journal of Systematic and Evolutionary Microbiology. Society for General Microbiology: Reading. ISSN 1466-5026, more
Peer reviewed article  

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Keywords
    Marine; Terrestrial

Authors  Top 
  • Nedashkovskaya, O.I.
  • Cleenwerck, I., more
  • Zhukova, N.V.
  • Kim, S.B.
  • de Vos, P., more

Abstract
    A strictly aerobic, Gram-stain-negative, rod-shaped, non-motile and yellow-pigmented bacterial strain, designated KMM 6208(T), was isolated from a sea urchin. Phylogenetic analysis based on 16S rRNA gene sequencing revealed that this novel isolate was affiliated to the class Gammaproteobacteria and formed a robust cluster with Arenicella xantha KMM 3895(T) with 98.2% 16S rRNA gene sequence similarity. Strain KMM 6208(T) grew in the presence of 0.5-5% NaCl and at a temperature range of 4-38 degrees C. The isolate was oxidase-positive and hydrolysed aesculin, casein, chitin, gelatin, starch and Tweens 40 and 80. The prevalent fatty acids of strain KMM 6208(T) were C-16:1 omega 7c, iso-C-16:0, iso-C-18:0, C-18:1 omega 7c and C-16:0. The polar lipids consisted of phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol and an unidentified aminophospholipid, and the major isoprenoid quinone was Q-8. The DNA G+C content of strain KMM 6208(T) was 46.3 mol%. The DNA DNA relatedness value of strain KMM 6208(T) with Arenicella xantha KMM 3895(T) was 5%. Molecular data in a combination with phenotypic findings strongly suggest inclusion of this novel strain in the genus Arenicella as a representative of a novel species for which the name Arenicella chitinivorans sp. nov. is proposed. The type strain is KMM 6208(T) (=KCTC 12711(T)=LMG 26983(T)).

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