1887

Abstract

A strictly aerobic, Gram-stain-negative, yellow-pigmented, non-spore-forming, motile (by gliding), rod-shaped bacterium, designated strain 15F3, was isolated from leaf-and-branch compost. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain 15F3 was most closely related to WB 3.2-61 and formed a distinct phyletic lineage within the genus , the type genus of the family . Growth was observed at 10–34 °C (optimum, 30 °C) and pH 6.0–8.0 (optimum, pH 7.0). No growth occurred in the presence of ≥2 % (w/v) NaCl. Strain 15F3 reduced nitrate to nitrogen and showed catalase activity but no oxidase activity. The predominant cellular fatty acids were iso-C and summed feature 3 (comprising Cω7 and/or iso-C 2-OH). The major isoprenoid quinone was menaquinone-6. The G+C content of the genomic DNA was 31.1 mol%. On the basis of data from this polyphasic study, strain 15F3 may be classified as a representative of a novel species within the genus , for which the name sp. nov. is proposed; the type strain is 15F3 ( = KACC 14225  = JCM 16466).

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2011-07-01
2024-04-20
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