Journal of Species Research

The National Institute of Biological Resources (국립생물자원관)
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Twelve previously unrecorded bacterial species, isolated from the Nakdong River, South Korea

  • Kim, Hyangmi (Bacteria Research Team, Nakdonggang National Institute of Biological Resources(NNIBR)) ;
  • Han, Ji-Hye (Bacteria Research Team, Nakdonggang National Institute of Biological Resources(NNIBR))
  • Received : 2020.12.23
  • Accepted : 2021.03.29
  • Published : 2021.05.31
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Abstract

During a survey of indigenous prokaryotic species diversity of the upstream Nakdong River, South Korea, 12 bacterial strains were isolated for further analysis. These bacterial strains were identified showing at least 98.7% 16S rRNA gene sequence similarity with known bacterial species that were previously unreported in South Korea. The 12 bacterial strains were phylogenetically diverse and assigned to four classes, eight orders, nine families, and ten different genera. The isolates were identified as Leucobacter holotrichiae (99.1%), Leucobacter tardus (99.9%), Rhodococcus rhodochrous (99.9%), Tessaracoccus oleiagri (100%), and Paeniglutamicibacter cryotolerans (99.3%), of the class Actinobacteria; Bacillus coagulans (99.7%) and Bacillus wudalianchiensis (99.1%) of the class Bacilli; Ochrobactrum pseudogrignonense (99.2%) and Paracoccus thiocyanatus (100%) of the class Alphaproteobacteria; and Ideonella azotifigens (99.0%), Polaromonas glacialis(99.3%), and Herbaspirillum seropedicae (99.5%) of the class Betaproteobacteria. The cellular and colonial morphology, biochemical properties, and phylogenetic position of these isolates were examined, and species descriptions are provided.

Keywords

Acknowledgement

This study was supported by a grant from the Nakdong-gang National Institute of Biological Resources(NNIBR), funded by the Ministry of Environment(MOE) of the Republic of Korea (NNIBR202101105).

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