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This Article Full Text (Papers in Press[PDF]) All Versions of this Article: ijs.0.002519-0v1 59/7/1793    most recent Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via CrossRef Google Scholar Articles by Nagai, F. Articles by Tanaka, R. PubMed PubMed Citation Articles by Nagai, F. Articles by Tanaka, R. Agricola Articles by Nagai, F. Articles by Tanaka, R.

Parasutterella excrementihominis gen. nov., sp. nov., a novel member of the family Alcaligenaceae, isolated from human faeces

Yakult Central Institute for Microbiological Research

¹ E-mail: fumiko-nagai{at}yakult.co.jp

A novel, strictly anaerobic, non-spore-forming, Gram-negative cocobacillus (YIT 11859^T) was isolated from human faeces. Biochemically, this strain was largely unreactive and was asaccharolytic. The growth of YIT 11859^T in peptone-yeast extract broth produced no visible turbidity, and a trace amount of propionate was detected as an end-product of metabolism. Following 16S rRNA gene sequence analysis, this strain was found to be most closely related to Sutterella species, with 90.8-88.0% sequence similarity. Phylogenetic analysis of these and other related sequences confirmed that strain YIT 11859^T was phylogenetically most closely associated with Sutterella species, but formed a separate cluster, indicating that strain YIT 11859^T is a new member of the family Alcaligenaceae. Fatty acid analysis demonstrated the presence of high concentration of C_{18 : 1}9c (75%). The main respiratory quinones were menaquinone (MK-6) and methylated menaquinone (MMK-6). The G + C content of the DNA was 49.8 mol%. These results suggest that strain YIT 11859^T represents a novel species of a new genus, for which the name Parasutterella excrementihominis gen. nov., sp. nov. is proposed. The type strain is YIT 11859^T (= DSM 21040^T = JCM 15078^T).

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