Description of Helicobacter valdiviensis sp nov., an Epsilonproteobacteria isolated from wild bird faecal samples

Collado, L; Jara R.; Gonzalez S.

Abstract

Two Gram-stain-negative, gently curved rod-shaped isolates (WBE14(T) 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 WBE14(T) 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 WBE14(T) (=CECT 8410(T)=LMG 27920(T)).

Más información

Título según WOS: Description of Helicobacter valdiviensis sp nov., an Epsilonproteobacteria isolated from wild bird faecal samples
Título según SCOPUS: Description of Helicobacter valdiviensis sp. nov., an Epsilonproteobacteria isolated from wild bird faecal samples
Título de la Revista: INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
Volumen: 64
Número: PART 6
Editorial: MICROBIOLOGY SOC
Fecha de publicación: 2014
Página de inicio: 1913
Página final: 1919
Idioma: English
DOI:

10.1099/ijs.0.057141-0

Notas: ISI, SCOPUS