1887

Abstract

An aerobic, Gram-stain-negative, non-motile coccus, designated strain GVCNT2, was isolated from the tonsils of a healthy adult female. Cells were oxidase- and catalase-positive, positive for the production of esterase (C4), esterase lipase (C8) and leucine arylamidase, and weakly positive for naphthol-AS-BI-phosphohydrolase and alkaline phosphatase. Cells were also capable of hydrolysing DNA. Growth was observed at 20–37 °C and in the presence of up to 1.5 % NaCl. Phylogenetic analysis of near full-length 16S rRNA gene sequences indicated that the strain exhibited closest sequence similarity to ATCC 700022 (94.68 %) and an uncultured, unspeciated bacterial clone (strain S12-08; 99 %). The major fatty acids were Cω9, C, C and Cω6/Cω7. The DNA G+C content of strain GVCNT2 was 40.7 mol%. The major respiratory quinone identified was Q-8. Strain GVCNT2 exhibited a comparable phenotypic profile to other members of the genus but could be distinguished based on its ability to produce acid (weakly) from -glucose, melibiose, -arabinose and rhamnose and on its ability to hydrolyse DNA. On the basis of phenotypic and phylogenetic differences from other members of the family , strain GVCNT2 is considered to represent a novel species of a new genus, for which the name gen. nov., sp. nov. is proposed. The type strain of is GVCNT2 ( = DSM 28411 = NCIMB 14946).

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2015-01-01
2021-03-08
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