Aquabacterium soli sp. nov., a novel bacterium isolated from soil under the long- term application of bifenthrin

Strain SJQ9(T), an aerobic bacterium isolated from a soil sample collected in Shanghai, PR China, was characterized using a polyphasic approach. It grew optimally at pH 7.0, 30-35 degrees C and in the presence of 1 % (w/v) NaCl. A comparative analysis of 16S rRNA gene sequences showed that strain SJQ9(T) fell within the genus Aquabacterium. The closest phylogenetic relatives of strain SJQ9(T) were Aquabacterium citratiphilum DSM 11900(T) (98.6 % sequence similarity) and Aquabacterium commune DSM 11901(T) (96.4 %). Cells of the strain were Gram- stain-negative, motile, non-spore-forming, rod-shaped and positive for oxidase activity and negative for catalase. The chemotaxonomic properties of strain SJQ9(T) were consistent with those of the genus Aquabacterium: the major fatty acid was summed feature 3 (C-16:1 omega 6c and/or C-16:1 omega 7c). The isoprenoid quinone was Q-8. The major polar lipids were phosphatidylethanolamine, phosphatidylcholine, phosphatidylglycerol and diphosphatidylglycerol. The DNA G+C content was 65.7 mol%. Strain SH9(T) exhibited a DNA-DNA relatedness level of 34 +/- 2 % with A. citratiphilum DSM 11900(T) and 28 +/- 3 % with A. commune DSM 11901(T). Based on the obtained data, strain SJQ9(T) represents a novel species of the genus Aquabacterium, for which the name Aquabacterium soli sp. nov. is proposed. The type strain is SJQ9(T) (=JCM 33106(T)=CCTCC AB 2018284(T)).

Automated summary

SH9(T) is an aerobic bacterium isolated from soil in Shanghai, China, belonging to the genus Aquabacterium and named Aquabacterium soli sp. nov. It exhibits specific growth conditions and chemotaxonomic properties typical of the genus.