Sphingobacterium griseoflavum sp. nov., isolated from the insect Teleogryllus occipitalis living in deserted cropland

A Gram-stain-negative, aerobic, rod-shaped, non-motile bacterial strain, designated SCU-B140T, was isolated from the insect Teleogryllus occipitalis. Phylogenetic analysis on the basis of 16S rRNA gene sequence showed that strain SCU-B140T belonged to the genus Sphingobacterium. Sphingobacterium bambusae KCTC 22814T (97.87 %) was identified as the most closely related phylogenetic neighbour of strain SCU-B140T. The novel strain was able to grow at salt concentrations of 0-4 % (w/v), at temperatures of 10-40 °C, and at a pH of 6.0-9.0. The major cellular fatty acids were iso-C15 : 0, summed feature 3 (iso-C15 : 0 2-OH and/or C16 : 1ω7c), C16 : 0, C16 : 0 3-OH, C18 : 0 and C14 : 0. The major polar lipids consisted of phosphatidylethanolamine, three unknown aminophospholipids, an unknown glycolipid and three unknown polar lipids. MK-7 was the major isoprenoid quinone. The DNA G+C content was 41.2 mol%. The DNA-DNA relatedness value between SCU-B140T and S. bambusae KCTC 22814T was found to be 30.15 %. According to these results, strain SCU-B140T represents a novel species of the genus Sphingobacterium, for which the name Sphingobacterium griseoflavum sp. nov. is proposed. The type strain is SCU-B140T ( = KCTC 42158T = CGMCC 1.12966T).