Title Lysobacter tyrosinelyticus sp. nov. isolated from Gyeryongsan national park soil
Author Juan Du1, Hina Singh1, Hien T.T. Ngo1, KyungHwa Won1, Ki-Young Kim2, and Tae-Hoo Yi1*
Address 1Department of Oriental Medicine Biotechnology, College of Life Science, Kyung Hee University Global Campus, Gyeonggi-do 446-701, Republic of Korea, 2Department of Genetic Engineering, College of Life Science, Kyung Hee University Global Campus, Gyeonggi-do 446-701, Republic of Korea
Bibliography Journal of Microbiology, 53(6),365-370, 2015,
DOI 10.1007/s12275-015-4729-9
Key Words Lysobacter tyrosinelyticus, Gram-negative, Ubiquinone Q-8, 16S rRNA
Abstract A novel Gram-negative, rod-shaped (0.2-0.5 um x 1.5-2.5 um), aerobic, non-motile bacterium was isolated from Gyeryongsan national park soil, Republic of Korea. The novel isolate was designated as THG-DN8.2T. The strain grows optimally at 28oC, at pH 7 and in the absence of NaCl. Phylogenetic analysis based on 16S rRNA gene sequence showed that the novel isolate shared the highest sequence similarity with Lysobacter oryzae KCTC 22249T followed by Lysobacter yangpyeongensis KACC 11407T and Lysobacter niabensis KACC 11587T. The DNA G+C content of strain THG-DN8.2T is 66.0 mol% and ubiquinone Q-8 is the main isoprenoid quinone. The major polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, and phosphatidyl-N-methylethanolamine. The major fatty acids of strain THG-DN8.2T were identified as iso-C15:0, iso-C16:0, and C16:1w7c alcohol. The phylogenetic distinctiveness and phenotypic characteristics differentiated strain THG-DN8.2T from closely related Lysobacter species. The results of polyphasic taxonomic analysis suggest that strain THG-DN8.2T represents a novel species of the genus Lysobacter, for which the name Lysobacter tyrosinelyticus sp. nov. is proposed. The type strain is THG-DN8.2T (=KCTC 42235T =JCM 30320T).