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Abstract
A novel bacterial strain, designated MY15T, 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 Myroides marinus JS-08T, Myroides odoratimimus LMG 4029T and Myroides profundi D25T with 96.5 %, 96.3 % and 96.1 % gene sequence similarities, respectively, demonstrating that the novel strain belonged to the genus Myroides . Strain MY15T 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 C15 : 0 iso (51.2 %), C17 : 0 iso 3-OH (12.9 %) and C13 : 0 iso (10.5 %) as the dominant fatty acids. The G+C content of the DNA was 34.3 mol%. On the basis of this study, based on a polyphasic taxonomic approach, strain MY15T ( = DSM 23313T = LMG 25566T) represents a novel species of the genus Myroides , for which the name Myroides phaeus sp. nov. is proposed. Emended descriptions of the genus Myroides and of the species M. profundi and M. marinus are also given.
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Funding
- National High Technology R&D Program of China (Award 2007AA09Z434)
- National Natural Science Foundation of China (Award 40876067)