Open AccessLysobacter lacus sp. nov., isolated from from lake sediment
Author(s) -
WanTaek Im,
Muhammad Hameed Siddiqi,
Soyeon Kim,
Md. Amdadul Huq,
Jae Hag Lee,
Kang Duk Choi
Publication year - 2020
Publication title -
international journal of systematic and evolutionary microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.925
H-Index - 173
eISSN - 1466-5034
pISSN - 1466-5026
DOI - 10.1099/ijsem.0.003950
Subject(s) - biology , sediment , botany , paleontology
An aerobic and Gram-stain-negative bacterial strain, designated UKS-15 T , was isolated from lake water in the Republic of Korea. Results of 16S rRNA gene sequence and phylogenetic analyses indicated that the novel isolate belongs to the genus Lysobacter and was most closely related to Lysobacter xinjiangensis RCML-52 T (98.0 %), Lysobacter mobilis 9 NM-14 T (97.4 %) and Lysobacter humi FJY8 T (97.2 %). The DNA G+C content was 69.1 mol%. Strain UKS-15 T possessed ubiquinone-8 (Q-8) as the sole respiratory quinone and the fatty acid profile comprised iso-C 15 : 0 , iso-C 17 : 0 and summed feature 9 (iso-C 17 : 1 ω9 c and/or C 16 : 0 10-methyl) as its major components. The major polar lipids were phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol and one unidentified aminophospholipid. Moreover, the physiological and biochemical results and low level of DNA–DNA relatedness (<22.0 %) allowed the phenotypic and genotypic differentiation of strain UKS-15 T from other Lysobacter species. Therefore, on the basis of the data from this polyphasic taxonomic study, strain UKS-15 T should represent a novel species of the genus Lysobacter , for which the name Lysobacter lacus sp. nov. is proposed. The type strain is UKS-15 T (=JCM 30983 T =KACC 18719 T ).