Abstract
A novel Gram-stain-negative, motile, and facultative anaerobic coccus, strain ChDC F240T was isolated from human subgingival dental plaque of a gingivitis lesion. The phylogenetic analysis based on the 16S ribosomal RNA gene (16S rDNA) sequence showed that the strain belonged to the genus Lautropia. 16S rDNA of strain ChDC F240T had the highest similarity to that of Lautropia mirabilis ATCC 51599T (98.8%). Major cellular fatty acids of strain ChDC F240T were C16:0 (43.9%) and C16:1ω6C/C16:1ω7C (38.1%). Draft genome of the strain was 3,834,139 bp in length and the G+C content was 65.0 mol%. Average nucleotide identity and genome-to-genome distance values between strain ChDC F240T and L. mirabilis ATCC 51599 T were 81.99% and 28.50% (26.1–30.9%), respectively. These results reveal that strain ChDC F240T is a novel species within the genus Lautropia, for which the name Lautropia dentalis sp. nov. is proposed; type strain is ChDC F240T (= KCOM 2505T = JCM 33297T).
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This research was supported by the Bio & Medical Technology Development Program of the National Research Foundation (NRF) funded by the Ministry of Science and ICT (2017M3A9B8065844), in part by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (2018R1A2B5002239), and in part by the KRIBB Research Initiative Program funded by the Ministry of Science, ICT and Future Planning.
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DPD number: TA00934. GenBank accession number of 16S rRNA gene for strain ChDC F240T: MK748163. GenBank accession number of genome for strain ChDC F240T: RRUE01000000.
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284_2019_1761_MOESM1_ESM.docx
Supplementary material 1 (DOCX 42 kb) Supplementary Fig S1. Maximum likelihood (A) and the minimum evolution (B) phylogenetic trees based on 16S rDNA sequences of strain ChDC F240T and type strains of related species. Stability of phylogenetic trees was assessed by bootstrap analysis of 1,000 replicates with MEGA version 6.06 [15]. Bars indicate 0.01 (A) or 0.01 (B) changes per nucleotide position. GenBank accession numbers of 16S rDNA sequences of strains were given in parenthesis.
284_2019_1761_MOESM2_ESM.pptx
Supplementary material 2 (PPTX 1234 kb) Supplementary Fig S2. Flagella were stained using Leifson stain solution and methylene blue. Light microscope image was taken using a CX43 Biological Microscope. Arrows indicate the flagella. Original magnification: ×1,000. Bar = 30 μm.
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Lim, Y.K., Park, SN., Lee, WP. et al. Lautropia dentalis sp. nov., Isolated from Human Dental Plaque of a Gingivitis Lesion. Curr Microbiol 76, 1369–1373 (2019). https://doi.org/10.1007/s00284-019-01761-1
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DOI: https://doi.org/10.1007/s00284-019-01761-1