Streptococcus chosunense sp. nov., isolated from human postoperative maxillary cyst

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Title
Streptococcus chosunense sp. nov., isolated from human postoperative maxillary cyst
Author(s)
Y K Lim; S N Park; J H Shin; Young Hyo Chang; Yeseul Shin; Jayoung Paek; H Kim; J K Kook
Bibliographic Citation
Current Microbiology, vol. 76, no. 10, pp. 1193-1198
Publication Year
2019
Abstract
A novel facultative anaerobic, non-spore forming, non-motile, and Gram-stain-positive coccus, designated strain ChDC B353T, was isolated from human postoperative maxillary cyst. The 16S ribosomal RNA gene (16S rDNA) sequence of the strain was most closely related to those of Streptococcus pseudopneumoniae ATCC BAA-960T (99.4%), Streptococcus mitis NCTC 12261T (99.3%), and Streptococcus pneumoniae NCTC 7465T (99.2%). The major fatty acids of the strain were C16:0 (43.2%) and C18:1 ω6c/C18:1 ω7c (20.2%). The genome of strain ChDC B353T was composed of 1,902,053 bps. The DNA G+C content of the strain was 40.2 mol%. Average nucleotide identity (ANI) values between strain ChDC B353T and S. pseudopneumoniae ATCC BAA-960T, S. mitis NCTC 12261T, and S. pneumoniae NCTC 7465T were 91.9%, 93.5%, and 91.3%, respectively. Genome-to-genome distance (GGD) values between strain ChDC B353T and S. pseudopneumoniae ATCC BAA-960T, S. mitis NCTC 12261T, or S. pneumoniae NCTC 7465T were 46.6% (44.0-49.2%), 53.2% (50.5-55.9%), and 46.0% (43.5-48.7%), respectively. The threshold values of ANI and GGD for species discrimination are 95-96% and 70%, respectively. These results reveal that strain ChDC B353T (=?KCOM 1699T?=?JCM 33453T) is a novel species belonging to genus Streptococcus, for which a name of Streptococcus chosunense sp. nov. is proposed.
ISSN
0343-8651
Publisher
Springer
DOI
http://dx.doi.org/10.1007/s00284-019-01746-0
Type
Article
Appears in Collections:
Ochang Branch Institute > Division of Bioinfrastructure > ABS Research Support Center > 1. Journal Articles
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