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Volume 73, Issue 2

sp. nov., an anaerobic bacterium isolated from the saliva of a patient with oral squamous cell carcinoma No Access

Abstract

A Gram-stain-negative or -positive, strictly anaerobic, non-spore-forming and pleomorphic bacterium (designated 14-104) was isolated from the saliva sample of a patient with oral squamous cell carcinoma. It was an acid-tolerant neutralophilic mesophile, growing at between 20 and 40 °C (with optimum growth at 30 °C) and pH between pH 3.0 and 7.0 (with optimum growth at pH 6.0–7.0). It contained anteiso-C and C as the major fatty acids. The genome size of strain 14-104 was 2.98 Mbp, and the G+C content was 39.6 mol%. It shared <87 % 16S rRNA sequence similarity, <71 % orthologous average nucleotide identity, <76 % average amino acid identity and <68 %% of conserved proteins with its closest relative, CCUG 55929. Reconstruction of phylogenetic and phylogenomic trees revealed that strain 14-104 and CCUG 55929 were clustered as a distinct clade without any other terminal node. The phylogenetic and phylogenomic analyses along with physiological and chemotaxonomic data indicated that strain 14-104 represents a novel species in the genus , for which the name sp. nov. is proposed. The type strain is 14-104 (=BCRC 81305= NBRC 115041).

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): oral cavity , oral microbiome , oral squamous cell carcinoma , POCP and saliva
Funding
This study was supported by the:
  • Ministry of Science and Technology, Taiwan (Award 108-2221-E-006 -160 -MY3)
    • Principle Award Recipient: Jer-HorngWu
  • Ministry of Science and Technology, Taiwan (Award 108-2321-B-006-010)
    • Principle Award Recipient: Li-WhaWu
© 2023 The Authors
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/content/journal/ijsem/10.1099/ijsem.0.005703
2023-02-06
2024-04-24
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Phocaeicola oris sp. nov., an anaerobic bacterium isolated from the saliva of a patient with oral squamous cell carcinoma
Int J Syst Evol Microbiol 73, 005703 (2023); https://doi.org/10.1099/ijsem.0.005703
/content/journal/ijsem/10.1099/ijsem.0.005703
/content/journal/ijsem/10.1099/ijsem.0.005703
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