1887

Abstract

Two Gram-staining-negative, strictly aerobic, non-endospore-forming, non-motile, rod-shaped bacteria, designated strains YIT 12745 and YIT 12746, were isolated from sludge from a wastewater treatment plant. 16S rRNA gene sequence analyses indicated that these strains belonged to the genus . In these analyses, strains YIT 12745 and YIT 12746 were most closely related to the type strains of and , with 16S rRNA gene sequence similarity values of 94.9 % and 96.2 %, respectively. For both novel strains, menaquinone (MK-6) was the only respiratory quinone. The major fatty acids of strain YIT 12745 were iso-C G (14.4 %), iso-C (13.2 %), C (12.9 %), iso-C (12.9 %) and iso-C 3-OH (11.5 %). Those of strain YIT 12746 were iso-C (21.5 %), iso-C (13.3 %), C (12.0 %) and iso-C G (11.9 %). The genomic DNA G+C contents of strains YIT 12745 and YIT 12746 were 48.7 and 30.9 mol%, respectively. From their differential phenotypic and phylogenetic characteristics, these strains are considered to represent two novel species of the genus , for which the names sp. nov. (type strain YIT 12745 = JCM 19141 = DSM 27077) and sp. nov. (type strain YIT 12746 = JCM 19142 = DSM 27078) are proposed. Emended descriptions of and are also proposed.

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2014-05-01
2019-10-13
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