1887

Abstract

16S rRNA gene sequences of two type strains belonging to different genera within the suborder Corynebacterineae , namely Hoyosella altamirensis and Amycolicicoccus subflavus , show a similarity of 99.8 %. Therefore, in order to clarify their taxonomic relationship, a polyphasic recharacterization under the same conditions was carried out. The peptidoglycan of H. altamirensis NBRC 109631 and A. subflavus NBRC 109087 was of A1γ type with meso-diaminopimelic acid as their diagnostic diamino acid. Both strains contained MK-8 as the only detected menaquinone, C16 : 0 and C18 : 1 ω9c as the major fatty acids, and diphosphatidylglycerol, phosphatidylethanolamine and phosphatidylinositol as the principal polar lipids. The coincidences of these chemotaxonomic features suggested that H. altamirensis and A. subflavus should be assigned to the same genus. Meanwhile, the average nucleotide identity value between both strains and the results of physiological and biochemical tests indicated that H. altamirensis and A. subflavus should be affiliated to different species. Therefore, according to Rules 38 and 41a of the Bacteriological Code, it is proposed that Amycolicicoccus subflavus Wang et al. 2010 be reclassified as Hoyosella subflava comb. nov. (type strain DQS3-9A1=CGMCC 4.3532=DSM 45089=JCM 17490=NBRC 109087) and the descriptions of the genus Hoyosella Jurado et al. 2009 and Hoyosella altamirensis Jurado et al. 2009 are emended accordingly.

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2016-11-01
2019-12-07
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