1887

Abstract

A strictly anaerobic, Gram-positive, short-rod/coccobacillus-shaped bacterial strain, designated 7-10-1-b, was isolated from the colon of a patient suffering from acute Crohn's disease. The isolate formed small, pale-white, semi-translucent colonies on solid cultivation media. The strain was catalase-positive and metabolized only a small number of carbon sources. Whole-cell fatty acids consisted predominantly of saturated fatty acids (89 %), of which 15 : 0 anteiso was the major component. The polar lipids phosphatidylglycerol and diphosphatidylglycerol as well as four glycolipids were identified. 16S rRNA gene sequence analysis revealed that the isolate represents a distinct lineage within the family and has 94.6 % identity to the type strain of [] , the phylogenetically closest bacterial species. On the basis of the analyses performed, the new genus and species gen. nov., sp. nov. is described, with strain 7-10-1-b (=DSM 19378 =CCUG 55131) as the type and only strain of . Also, based on the chemotaxonomic data obtained for all type strains of the neighbouring genus , we propose that Lau 2006 be transferred to a new genus as gen. nov., comb. nov.; the type strain of is HKU10 (=DSM 16106 =CCUG 49250).

Keyword(s): DMA, dimethylacetal
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2009-06-01
2019-09-15
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[PDF file of Supplementary Figs S1 and S2](33 KB)

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TLC of polar lipids extracted from strain 7-10-1-b , [ ] DSM 16106 , DSM 2243 and DSM 16107 . DPG, Diphosphatidylglycerol; PG, phosphatidylglycerol; GL1–4, glycolipids.

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[PDF file of Supplementary Tables S1 and S2](33 KB)

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