Lysobacter humi sp. Nov., isolated from soil

Dongwook Lee, Jun Hyeong Jang, Seho Cha, Taegun Seo

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

A yellow-pigmented and strictly aerobic bacterial strain, designated FJY8T, was isolated from the soil of Goyang, South Korea. The cells of FJY8Twere Gram-reaction-negative, non-motile rods. Colonies were circular, convex and transparent. Strain FJY8Tgrew optimally at 30 °C, with 0 % (w/v) NaCl and at pH 8. Phylogenetic analysis of the 16S rRNA gene sequence of FJY8Trevealed a clear affiliation of this bacterium to the family Lysobacteraceae, and it was related to members of the genus Lysobacter, with Lysobacter xinjiangensis KCTC 22558Tbeing its closest relative (98.7 % sequence similarity). The DNA G+C content was 68.0±0.4 mol%. Diphosphatidylglycerol, phosphatidylethanolamine and phosphatidylglycerol were identified as the major polar lipids, and an unidentified phospholipid and two unidentified aminophospholipids were also detected as the minor polar lipids. The major fatty acids were iso-C16 : 0, summed feature 9 (iso-C17 : 1ω9c and/or C16 : 010-methyl) and iso-C15 : 0. Only ubiquinone-8 (Q-8) was detected as the isoprenoid quinone. DNA–DNA hybridization values of strain FJY8Twith Lysobacter xinjiangensis RCML-52Tand Lysobacter mobilis 9NM-14Twere 55.8±2.0 and 45.2±4.8 %, respectively. On the basis of DNA–DNA hybridization, phylogenetic distinctiveness, and some physiological and biochemical tests, strain FJY8T(=KCTC 42810T=JCM 31019T) represents a novel species of the genus Lysobacter, for which the name Lysobacter humi sp. nov. is proposed.

Original languageEnglish
Article number001722
Pages (from-to)951-955
Number of pages5
JournalInternational Journal of Systematic and Evolutionary Microbiology
Volume67
Issue number4
DOIs
StatePublished - Apr 2017

Keywords

  • DNA-DNA relatedness
  • Lysobacter
  • Taxonomy

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