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    Xanthomarina gelatinilytica gen nov., sp nov., isolated from seawater

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    Int_J_Systemat_Evolut_Microbiol_26_3926.pdf (231.1Kb)
    Date
    2015
    Author
    Bhumika, V.
    Ravinder, K.
    Sharma, G.
    Srinivas, T.N.R.
    AnilKumar, P.
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    Abstract
    A novel Gram-stain-negative, rod-shaped, yellow-pigmented, non-sporulating, non-motile bacterium, designated strain AK20 T , was isolated from seawater collected from Kochi city, Kerala state, India. Colonies on marine agar were circular, yellow, shiny, translucent, 2–3 mm in diameter, convex and with entire margin. Flexirubin-type pigment was present. The fatty acids were dominated by iso-branched units with a high abundance of iso-C 15 : 0 , iso-C 15 : 1 G, iso-C 17 : 0 3-OH, summed feature 3 (C 16 : 1 v7c and/or iso-C 15 : 0 2-OH) and iso-C 15 : 0 3-OH. Polar lipids included phosphatidylethanolamine, two unidentified aminophospholipids, two unidentified phospholipids and four unidentified lipids. Menaquinone 6 (MK-6) was the predominant respiratory quinone. The DNA G+C content of strain AK20 T was 38.8 mol%. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain AK20 T was closely related to Formosa spongicola A2 T and Bizionia paragorgiae KMM 6029 T (pair-wise sequence similarities of 95.9 and 95.7 %, respectively), forming a distinct branch within the family Flavobacteriaceae and clustering with the clade comprising species of the genus Bizionia. Based on phenotypic and chemotaxonomic characteristics and phylogenetic analysis, strain AK20 T is different from the existing genera in the family Flavobacteriaceae, and is therefore considered to represent a novel species of a new genus, for which the name Xanthomarina gelatinilytica gen. nov., sp. nov. is proposed. The type strain of Xanthomarina gelatinilytica is AK20 T (5MTCC 11705 T 5JCM 18821 T ).
    URI
    http://drs.nio.org/drs/handle/2264/7685
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