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INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY logo International Journal of Systematic and Evolutionary Microbiology

Volume 72, Issue 9

sp. nov., a novel member of the Cholerae clade Open Access

Abstract

A number of bacteria with close resemblance to have been isolated over the years by the Centres for Disease Control and Prevention (CDC), which could not be assigned a proper taxonomic designation on the basis of the results from preliminary identification methods. Nine such isolates have been found to share 16S rRNA gene identity exceeding 99 % with yet DNA–DNA hybridization (60.4–62.1 %) and average nucleotide identity values (94.4–95.1 %) were below the species cut-off, indicating a potentially novel species. Phylogenetic analysis of core genomes places this group of isolates in a monophyletic clade, within the ‘Cholerae clade’, but distinct from any other species. Extensive phenotypic characterization reveals unique biochemical properties that distinguish this novel species from . Comparative genomic analysis reveals a unique set of siderophore genes, indicating that iron acquisition strategies could be vital for the divergence of the novel species from a common ancestor with . On the basis of the genetic, phylogenetic and phenotypic differences observed, we propose that these isolates represent a novel species of the genus , for which the name sp. nov. is proposed. Strain 2521-89 (= DSM 112461=CCUG 75318), isolated from lake water, is the type strain.

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): Cholerae clade , novel species , Vibrio , Vibrio cholerae and Vibriosis
Funding
This study was supported by the:
  • Alberta Innovates - Technology Futures
    • Principal Award Recipient: MohammadTarequl Islam
© 2022 The Authors
  • This is an open-access article distributed under the terms of the Creative Commons Attribution License.
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2022-09-28
2025-11-07

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Vibrio tarriae sp. nov., a novel member of the Cholerae clade
Int J Syst Evol Microbiol 72, 005571 (2022); https://doi.org/10.1099/ijsem.0.005571
/content/journal/ijsem/10.1099/ijsem.0.005571
/content/journal/ijsem/10.1099/ijsem.0.005571
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