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E-ISSN : 2713-8615

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Vol.7 No.1
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A report on 24 unrecorded bacterial species of Korea isolated in 2016, belonging to the orders Rhizobiales and Sphingomonadales in the class Alphaproteobacteria

Journal of Species Research / Journal of Species Research, (E)2713-8615
2018, v.7 no.1, pp.13-23
https://doi.org/10.12651/JSR.2018.7.1.013
JOUNG YO CHAN
JANGCHEON CHO
Im Wan-Taek
Che Ok Jeon
Joh Ki Seong
Seung Bum Kim
Kim Wonyong
LEE SOON DONG
Cha Chang Jun
JOUNG, Y. C. , JANGCHEON, C. , Im, W. , Che, O. J. , Joh, K. S. , Seung, B. K. , Kim, W. , LEE, S. D. , & Cha, C. J. (2018). A report on 24 unrecorded bacterial species of Korea isolated in 2016, belonging to the orders Rhizobiales and Sphingomonadales in the class Alphaproteobacteria. Journal of Species Research, 7(1), 13-23, https://doi.org/10.12651/JSR.2018.7.1.013
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Abstract

In 2016, as a part of the research program ‘Survey of Korean Indigenous Species’, diverse environmental samples were collected from various sources of freshwater, seawater, soil, wetland, reclaimed land, sand, pine forest, plant root, ginseng field, solar saltern, and caves. Thousands of bacterial strains were isolated from the diverse samples and identified based on 16S rRNA gene sequence analyses. The present study, as a phylogenetic subset of the primary research program, reports 24 unrecorded bacterial species in Korea that belong to the orders Rhizobiales and Sphingomonadales in the class Alphaproteobacteria. Based on the high 16S rRNA gene sequence similarities (>98.8%) and formation of a robust phylogenetic clade with the closest type species, it was determined that each strain belonged to each independent and predefined bacterial species. There is no official report that these 24 bacterial species have been described in Korea; therefore, 10 species of nine genera in the order Rhizobiales and 14 species of seven genera in the order Sphingomonadales are described for unreported alphaproteobacterial species in Korea. Gram reaction, colony and cell morphology, biochemical properties, and isolation sources are also provided in the species description section.

keywords
bacterial diversity, Rhizobiales, Sphingomonadales, unrecorded species

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