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Volume 71, Issue 3

Classification of Bisgaard’s taxa 14 and 32 and a taxon from kestrels demonstrating satellitic growth and proposal of gen. nov., including the description of three species: sp. nov., sp. nov. and sp. nov. Free

Abstract

Avian -like organisms tentatively named taxon 14 of Bisgaard have been obtained from different lesions in birds including ducks, turkeys, pigeons, geese and peafowl. Taxon 32 of Bisgaard was first reported from lesions in pigeon hawks (). The taxon isolated from kestrels () was V-factor dependent and originally reported as like. The results of 16S rRNA gene sequence based phylogenetic analysis recently indicated that the taxa 14 and 32 and the kestrel taxon were located in a monophyletic group distantly related to [] with 92–93 % 16S rRNA gene sequence similarity. Comparison of 41 conserved protein sequences confirmed the monophyletic nature of the three taxa. Partial gene sequencing of 43 strains of taxon 14, taxon 32 and the kestrel taxon showed a relationship between taxon 14 and 32 of 88.2–90.0 % similarity. Within taxon 14, 93.3–100 % similarity was found, whereas the two strains of taxon 32 showed 99.8 % similarity. Sequencing of 16S rRNA genes of strains representing the diversity outlined showed more than 98 % similarity within taxon 14 and 99.4 % within taxon 32, while the kestrel strains showed 100 % 16S rRNA gene sequence similarity. A new genus, gen. nov., is proposed to include taxon 14, taxon 32 and the kestrel taxon. Phenotypically, members of the genus can be separated from members of the genera , and by maltose, oxidase and methyl red, respectively. Two or more phenotypic characters separate members of the genus from members of the remaining 27 genera of the family .The G+C content of DNA ranged from 42.9 to 51.2 % (genome sequence) for members of the genus . The type strain of (taxon 14 of Bisgaard) is 20609/3 (=CCUG 16499=DSM 111429=HIM 913-3). The type strain of is HPA106 (=CCUG 74731=DSM 111430). The type strain of (kestrel taxon) is IPDH 2176 (=NCTC 11878=CCUG 28587).

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): European sparrowhawk , mallard , Pasteurellaceae , sinusitis , taxonomy and turkey
Funding
This study was supported by the:
  • Statens Jordbrugs- og Veterinærvidenskabelige Forskningsråd
    • Principle Award Recipient: HenrikChristensen
© 2021 The Authors
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Classification of Bisgaard’s taxa 14 and 32 and a taxon from kestrels demonstrating satellitic growth and proposal of Spirabiliibacterium gen. nov., including the description of three species: Spirabiliibacterium mucosae sp. nov., Spirabiliibacterium pneumoniae sp. nov. and Spirabiliibacterium falconis sp. nov.
Int J Syst Evol Microbiol 71, 004758 (2021); https://doi.org/10.1099/ijsem.0.004758
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