Limnobaculum parvum gen. Nov., sp. nov., isolated from a freshwater lake

Chaeyun Baek, Su Kyoung Shin, Hana Yi

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


A Gram-stain-negative, rod-shaped, facultatively anaerobic bacterium, designated as strain HYN0051T, was isolated from lake water. 16S rRNA gene sequence analyses indicated that the isolate shares the highest sequence similarity with the genus Pragia (97.1%) of the family Enterobacteriaceae. Strain HYN0051T did not form a rigid clade with the genus Pragia in any of the phylogenetic trees, demonstrating the novel generic status of the isolate. The genome of strain HYN0051T (CP029185) is a single circular chromosome of 3.84 Mb. The major fatty acids detected were C14: 0, C16: 0, summed feature 2 (C12: 0 aldehyde and/or unknown 10.928), summed feature 3 (C16: 1ω6c and/or C16: 1ω7c) and summed feature 8 (C18: 1ω 6c and/or C18: 1 ω 7c). The isoprenoid quinones were Q-8, MK-8 and DMK-8. The major polar lipids were phosphatidylglycerol, phosphatidylethanolamine and one unidentified phospholipid. The genome size, G+C content and fatty acid profile were very similar to that of the genus Pragia, but the composition of isoprenoid quinones and polar lipids, and numerous phenotypic properties also supported the distinctiveness of the new isolate from the genus Pragia. Thus, based on phylogenetic and phenotypic data, a novel species of a new genus, Limnobaculum parvum gen. nov., sp. nov., is proposed. The type strain of Limnobaculum parvum is HYN0051T (=KACC 19186T=NBRC 112742T).

Original languageEnglish
Pages (from-to)1826-1830
Number of pages5
JournalInternational Journal of Systematic and Evolutionary Microbiology
Issue number6
Publication statusPublished - 2019 Jun


  • Lake water
  • Limnobaculum
  • Nakdong River

ASJC Scopus subject areas

  • Microbiology
  • Ecology, Evolution, Behavior and Systematics


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