title: Xanthomarina gelatinilytica gen. nov., sp. nov., isolated from seawater.
abstract: A novel Gram-stain-negative, rod-shaped, yellow-pigmented, non-sporulating, non-motile bacterium, designated strain AK20T, 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-C15:0, iso-C15:1 G, iso-C17:0 3-OH, summed feature 3 (C16:1ω7c and/or iso-C15:0 2-OH) and iso-C15:0 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 AK20T was 38.8 mol%. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain AK20T was closely related to Formosa spongicola A2T and Bizionia paragorgiae KMM 6029T (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 AK20T 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 AK20T ( = MTCC 11705T = JCM 18821T).
authors.affiliation: MTCC - Microbial Type Culture Collection & Gene Bank, CSIR - Institute of Microbial Technology, Chandigarh -160036, India.
authors.forename: Bhumika
authors.initials: B
authors.lastname: Vaidya
authors.affiliation: MTCC - Microbial Type Culture Collection & Gene Bank, CSIR - Institute of Microbial Technology, Chandigarh -160036, India.
authors.forename: Ravinder
authors.initials: R
authors.lastname: Kumar
authors.affiliation: MTCC - Microbial Type Culture Collection & Gene Bank, CSIR - Institute of Microbial Technology, Chandigarh -160036, India.
authors.forename: Gunjan
authors.initials: G
authors.lastname: Sharma
authors.affiliation: CSIR - National Institute of Oceanography, Regional Centre, 176, Lawsons Bay Colony, Visakhapatnam -530017, India.
authors.forename: Tanuku Naga Radha
authors.initials: TNR
authors.lastname: Srinivas
authors.affiliation: MTCC - Microbial Type Culture Collection & Gene Bank, CSIR - Institute of Microbial Technology, Chandigarh -160036, India.
authors.forename: Pinnaka
authors.initials: P
authors.lastname: Anil Kumar
mesh_terms: D015373:Bacterial Typing Techniques; D001482:Base Composition; D004269:DNA, Bacterial / Q000235:genetics; D005227:Fatty Acids / Q000737:chemistry; D041965:Flavobacteriaceae / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification; D007194:India; D008969:Molecular Sequence Data; D010743:Phospholipids / Q000737:chemistry; D010802:Phylogeny; D010858:Pigmentation; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D012623:Seawater / Q000382:microbiology*; D017422:Sequence Analysis, DNA; D024482:Vitamin K 2 / Q000031:analogs & derivatives / Q000737:chemistry
chemical_list: D004269:DNA, Bacterial; D005227:Fatty Acids; D010743:Phospholipids; D012336:RNA, Ribosomal, 16S; D024482:Vitamin K 2; C042455:menaquinone 6