Gemmobacter aquarius sp. Nov., runella rosea sp. nov. and flavobacterium fluviale sp. nov., isolated from the namhangang river system

Min Gyung Baek, Su Kyoung Shin, Hana Yi

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Three bacterial strains, namely HYN0069T, HYN0085T and HYN0086T, were isolated from freshwater samples taken from the Namhangan River system in Korea. 16S rRNA gene sequence similarities and phylogenetic tree topologies indicated that the three strains belonged to the genera Gemmobacter, Runella and Flavobacterium by showing the highest sequence similarities with Gemmobacter straminiformis (98.4%), Runella aurantiaca (98.3%) and Flavobacterium chungangense (98.1%). No bacterial species with validly published names showed 98.7% or higher sequence similarity with the novel isolates. The average nucleotide identities between the genome sequences of the three new isolates and the three closest neighbours were 80.2–92.0%, all below the threshold for bacterial species delineation (95–96%). Many biochemical and physiological features also discriminated the isolates from previously known species of the genera Gemmobacter, Runella and Flavobacterium. Based on the phylogenetic and phenotypic data presented in this study, we suggest three novel species with the following names: Gemmobacter aquarius sp. nov. (type strain HYN0069T=KACC 19488T=NBRC 113115T), Runella rosea sp. nov. (type strain HYN0085T=KACC 19490T=NBRC 113116T) and Flavobacterium fluviale sp. nov. (type strain HYN0086T=KACC 19489T=NBRC 113117T).

Original languageEnglish
Article number004455
Pages (from-to)5640-5647
Number of pages8
JournalInternational Journal of Systematic and Evolutionary Microbiology
Volume70
Issue number11
DOIs
Publication statusPublished - 2020

Keywords

  • Flavobacterium
  • Flavobacterium fluviale
  • Gemmobacter
  • Gemmobacter aquarius
  • Runella
  • Runella rosea

ASJC Scopus subject areas

  • Microbiology
  • Ecology, Evolution, Behavior and Systematics

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