1887

Abstract

An orange-coloured bacterial strain, designated R2A15-11, was isolated from greenhouse soil. The strain was found to be strictly aerobic, Gram-negative, non-spore-forming and non-flagellated. The cells were short rods (0.7–0.9×1.0–1.5 μm) and produced flexirubin. Growth of the strain was observed at 10–35 °C, pH 5.0–8.0 and 0–3 % (w/v) NaCl. The predominant isoprenoid quinone was MK-7. The major fatty acids were iso-C, iso-C G, iso-C 3-OH and summed feature 3 (comprising iso-C 2-OH and/or C 7). The genomic DNA G+C content was 45.0 mol%. Phylogenetic analysis of the 16S rRNA gene sequence of strain R2A15-11 revealed a clear affiliation with the phylum , and the highest levels of sequence similarity were found with respect to ATCC 13524 (91.5 %), DY (90.2 %), GR20-13 (89.9 %) and GR20-10 (89.7 %). On the basis of the polyphasic evidence from this study, strain R2A15-11 represents a novel genus and species, for which the name gen. nov., sp. nov. is proposed. The type strain of is R2A15-11 (=KACC 11698=DSM 17617).

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2007-03-01
2021-10-27
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