Description of Helicobacter valdiviensis sp. nov., an Epsilonproteobacteria isolated from wild bird faecal samples
| Autor: | Luis Collado, Susana González, Ronald Jara |
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| Rok vydání: | 2014 |
| Předmět: |
DNA
Bacterial Helicobacter pullorum Sequence analysis Molecular Sequence Data Microbiology Birds Feces Phylogenetics Genus Helicobacter RNA Ribosomal 16S Animals Chile Helicobacter canadensis Ecology Evolution Behavior and Systematics Phylogeny biology Phylogenetic tree General Medicine Chaperonin 60 Sequence Analysis DNA Ribosomal RNA biology.organism_classification 16S ribosomal RNA Bacterial Typing Techniques DNA Gyrase |
| Zdroj: | International journal of systematic and evolutionary microbiology. 64(Pt 6) |
| ISSN: | 1466-5034 |
| Popis: | Two Gram-stain-negative, gently curved rod-shaped isolates (WBE14T and WBE19), recovered from wild bird faecal samples in the city of Valdivia (Southern Chile) were subjected to a polyphasic taxonomic study. Results of a genus-specific PCR indicated that these isolates belonged to the genus Helicobacter . This was further confirmed by a phylogenetic analyses based on the 16S rRNA, 60 kDa heat-shock protein (cpn60) and gyrase subunit B (gyrB) genes, where both strains formed a novel phylogenetic line within this genus. The 16S rRNA gene sequence similarity of strain WBE14T to the type strains of all other species of the genus Helicobacter examined ranged from 89.4 to 97.0 %; Helicobacter brantae and Helicobacter pametensis were the most closely related species. However, on the basis of the protein-coding genes Helicobacter pullorum and Helicobacter canadensis are the most closely related species. These data, together with their different morphological and biochemical characteristics, revealed that these strains represent a novel species, for which the name Helicobacter valdiviensis sp. nov. is proposed, with the type strain WBE14T ( = CECT 8410T = LMG 27920T). |
| Databáze: | OpenAIRE |
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