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Abstract

A novel bacterial strain, designated MY15, was isolated from a saliva sample taken from a student during a teaching experiment in China. Phylogenetic analyses based on 16S rRNA gene sequences showed that the novel strain was most closely related to JS-08, LMG 4029 and D25 with 96.5 %, 96.3 % and 96.1 % gene sequence similarities, respectively, demonstrating that the novel strain belonged to the genus . Strain MY15 formed pale yellow colonies that turned to brown on Luria–Bertani (LB) agar and that gave off a characteristic fruity odour. Cells were Gram-staining-negative, rod-shaped and non-motile. The new isolate contained menaquinone 6 (MK-6) as the major respiratory quinone and C iso (51.2 %), C iso 3-OH (12.9 %) and C iso (10.5 %) as the dominant fatty acids. The GC content of the DNA was 34.3 mol%. On the basis of this study, based on a polyphasic taxonomic approach, strain MY15 ( = DSM 23313 = LMG 25566) represents a novel species of the genus , for which the name sp. nov. is proposed. Emended descriptions of the genus and of the species and are also given.

Funding
This study was supported by the:
  • National High Technology R&D Program of China (Award 2007AA09Z434)
  • National Natural Science Foundation of China (Award 40876067)
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2012-04-01
2021-08-01
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