Arthrobacter sulfonylureivorans sp. nov., isolated from a sulfonylurea herbicides degrading consortium enriched with...

A gram-stain positive, aerobic, motile, rod-shaped bacterium, designated strain LAM7117^T, was isolated from a sulfonylurea herbicides degrading consortium enriched with birch forest soil. The optimal temperature and pH for the growth of strain LAM7117^T were 35 °C and 7.5, respectively. Strain LAM7117^T could grow in the presence of NaCl with concentration up to 9% (w/v). Strain LAM7117^T formed a distinct phylogenetic subclade within the genus Arthrobacter in the phylogenetic trees built with 16S rRNA gene sequences and shared the highest similarity with A. crystallopoietes JCM 2522^T (97.7%). The values of digital DNA-DNA relatedness and Avery Nucleotide Identity based on the genome sequences between LAM7117^T and A. crystallopoietes JCM 2522^T were 21.4 and 77.4%, respectively. The genomic DNA G + C content was 65.9 mol%. The major cellular fatty acids were anteiso-C_15:0, iso-C_16:0 and anteiso-C_17:0. The cell wall peptidoglycan contained the amino acids as glycine, lysine, alanine and glutamic acid. The major polar lipids present in strain LAM7117^T were diphosphatidylglycerol, phosphatidylglycerol, phosphatidyl inositol, two unidentified glycolipids and one unidentified lipid. The predominant menaquinones of strain LAM7117^T were MK-8 and MK-9. Based on the phenotypic characteristics, chemotaxonomic data and genotypic analyses, strain LAM7117^T should be classified as a novel species of genus Arthrobacter, for which the name Arthrobacter sulfonylureivorans sp. nov. is proposed. The type strain is LAM7117^T (= JCM 32824^T = CGMCC 1.16681^T).