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).
|Number of pages||8|
|Journal||International Journal of Systematic and Evolutionary Microbiology|
|Publication status||Published - 2020|
Bibliographical noteFunding Information:
This study was supported by the research grant ‘Survey of Fresh-water Organisms and Specimen Collection (Prokaryotes)’ from the Nakdonggang National Institute of Biological Resources of the Ministry of Environment in Korea and by a National Research Foundation of Korea (NRF) grant funded by the Korean Government (MSIT) (No. 2019R1F1A1059925).
This study was supported by the research grant ?Survey of Freshwater Organisms and Specimen Collection (Prokaryotes)? from the Nakdonggang National Institute of Biological Resources of the Ministry of Environment in Korea and by a National Research Foundation of Korea (NRF) grant funded by the Korean Government (MSIT) (No. 2019R1F1A1059925).
© 2020 The Authors.
- Flavobacterium fluviale
- Gemmobacter aquarius
- Runella rosea
ASJC Scopus subject areas
- Ecology, Evolution, Behavior and Systematics