Motilimonas pumila sp. Nov., isolated from the gut of sea cucumber apostichopus japonicus

Feng Qing Wang, Li Hua Ren, Yu-Wei Lin, Guo Hua Sun, Zong Jun Du, Jin-Xin Zhao, Xiao Jing Liu, Li Juan Liu

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A facultatively anaerobic and Gram-negative bacterium, designated strain PLHSC7-2 T , was isolated from the gut of sea cucumber Apostichopusjaponicus that had been collected from the coastal area of Yantai, China. The cells were rod-shaped and motile by means of polar flagella. The novel isolate grew optimally at 28–30C, in the presence of 2.0–3.0 % (w/v) NaCl and at pH 7.0–7.5. The sole respiratory quinone was Q-8 and the major fatty acids were summed feature 3 (C 16: 1 !7c and/or C 16: 1 !6c), C 16: 0 and C 17: 0 . The predominant polar lipids were phosphatidylethanolamine, phosphatidylglycerol and diphosphatidylglycerol. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain PLHSC7-2 T was phylogenetically affiliated with the genus Motilimonas, and exhibited sequence similarity of 96.2 % toMotilimonaseburnea YH6 T . The DNA G+C content was 45.5 mol%. On the basis of phenotypic, phylogenetic and genetic distinctiveness, strain PLHSC7-2 T (=MCCC 1K03522 T =KCTC 62589 T ) was classified as a novel species within the genus Motilimonas, for which the name Motilimonas pumila sp. nov. is proposed.

Original languageEnglish
Article number003242
Pages (from-to)811-815
Number of pages5
JournalInternational Journal of Systematic and Evolutionary Microbiology
Issue number3
Publication statusPublished - 1 Mar 2019


  • 16S rRNA gene
  • Gut of sea cucumber
  • Motilimonas pumila sp
  • Nov
  • Polyphasic study

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