1887

Abstract

A Gram-negative, non-motile, non-spore-forming, non-flagellated rod capable of degrading cypermethrin, designated LQY-18, was isolated from activated sludge of a wastewater treatment plant in China. Strain LQY-18 grew at 8–40 °C (optimum 30 °C), at pH 5.0–10.0 (optimum pH 7.0) and with 0–5 % (w/v) NaCl (optimum 1 %). The predominant menaquinone was MK-7 (97 %) and the major fatty acids were summed feature 3 (comprising Cω6 and/or Cω7), iso-C and iso-C 3-OH. The DNA G+C content was 40.3 mol%. Phylogenetic analysis revealed that the isolate belonged to the genus of the phylum and showed low 16S rRNA gene sequence similarity with recognized members of the genus . The closest neighbour was ATCC 33299 (92.9 % 16S rRNA gene sequence similarity). On the basis of phenotypic, genetic and phylogenetic data, strain LQY-18 ( = ACCC 05410 = CCTCC AB 2010005 = KCTC 23009) should be classified as a representative of a novel species of the genus , for which the name sp. nov. is proposed.

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2012-03-01
2020-01-26
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