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Volume 70, Issue 10

sp. nov., isolated from paddy soil Free

Abstract

Two Gram-stain-positive, facultatively anaerobic, motile, aerobic, rod-shaped and non-spore-forming actinobacteria, strains AO-9 and AO-18, were isolated from paddy soil collected from Daejeon, Republic of Korea. Colonies were smooth, lemon-yellow and circular and 0.5–0.8×2.0–2.4 µm in diameter after 3 days of incubation at 28 °C on tryptic soy agar. Phylogenetic analyses based on 16S rRNA gene sequences revealed that strains AO-9 and AO-18 belonged to the genus , showing the highest sequence similarities to FXJ8.089 (96.6 %), SYSUP0004 (96.5 %), DSM 20111 (96.2 %), DSM 20107 (96.1 %), NEAU-TCZ24 (96.1 %), TR7-06 (96.0 %), JCM 18111 (96.0 %) and less than 96 % to other closely related species. The DNA–DNA hybridization values between strains AO-9 and AO-18 were 87 %. The average nucleotide identity and digital DNA–DNA hybridization values between strain AO-9 and type strains of related species of the genus were 84.0–85.8 % and 20.3–20.9 %, respectively. The major cellular fatty acids are anteiso-C (49.9 %), C (12.9 %) and iso-C (12.1 %). The predominant isoprenoid quinone was MK-9 (H). The polar lipid profile consists of diphosphatidylglycerol, phosphatidylglycerol and one unidentified lipid. The DNA G+C content was 72.9 mol%. Based on its distinctive phenotypic, phylogenetic and chemotaxonomic characteristics, the two strains are considered to represent novel species of the genus , for which the name sp. nov. is proposed. The type strain is AO-9 (=KACC 19069=NBRC 112523).

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  • Accepted:
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Keyword(s): Cellulomonas citrea sp. nov. and paddy soil
© 2020 The Authors
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2020-09-02
2024-05-14
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Cellulomonas citrea sp. nov., isolated from paddy soil
Int J Syst Evol Microbiol 70, 5304 (2020); https://doi.org/10.1099/ijsem.0.004409
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