Helicobacter salomonis sp. nov., a Canine Gastric Helicobacter sp. Related to Helicobacter felis and Helicobacter bizzozeronii

Jalava, Katri; Kaartinen, Maija; Utriainen, M.; Happonen, Irmeli; Hänninen, M.-L.

doi:10.1099/00207713-47-4-975

Cited by 130 publications

(132 citation statements)

References 22 publications

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“…Unfortunately due to the nature of the specimens obtained from the cheetahs (biopsies from live animals collected by endoscopy) similar analysis was not possible. The urease gene sequence data are thus in agreement with DNA-DNA hybridization and protein profiles of the cultivable bacteria, which allowed for their discrimination into three species, a differentiation not possible using the 16S rRNA gene (Hanninen et al, 1996;Jalava et al, 1997). As expected, the urease sequences of the six H. pylori strains formed a discrete cluster separate from the other Helicobacter species.…”

Section: Urease-based Pcrs For the Putative 'H Heilmannii' Speciessupporting

confidence: 63%

“…Attempts were made to culture the gastrospirilla using methods described elsewhere (Hanninen et al, 1996;Jalava et al, 1997;Paster et al, 1991). Briefly, gastric mucus scrapings from the host animal, patient or infected mouse were inoculated onto a 0?65 mm filter placed on non-selective blood agar plates (Blood agar base no.…”

Section: Methodsmentioning

confidence: 99%

“…For comparative purposes, DNA was extracted (Puregene DNA Purification Kit; Gentra Systems) from the following organisms: H. pylori strains 26695, the Sydney strain (SS1) and four fresh clinical strains (OB, PA, DA and MB) (Lee et al, 1997;Tomb et al, 1997) (Hanninen et al, 1996); H. salomonis CCUG 37845 T and CCUG 37848 (Jalava et al, 1997); a clinical strain of Campylobacter jejuni (clinical strain); and a clinical strain of Campylobacter coli (clinical strain). In addition, sequences for the 16S rRNA gene from seven additional Helicobacter strains were obtained from GenBank.…”

Section: Methodsmentioning

confidence: 99%

“…Morphologically similar organisms have, however, been validly described in cats and dogs (H. felis and Helicobacter bizzozeronii; Hanninen et al, 1996;Paster et al, 1991) and pigs ('Candidatus Helicobacter suis ';De Groote et al, 1999). These gastric helicobacters, together with Helicobacter salomonis (Jalava et al, 1997), form a distinct subgroup based on their 16S rRNA gene sequence data (De Groote et al, 1999). Although 16S rRNA gene sequence analysis is an extraordinarily useful phylogenetic tool, in this instance it is not sufficiently sensitive to discriminate among known unique species.…”

Section: Introductionmentioning

confidence: 99%

“…For example, H. felis, H. bizzozeronii, H. salomonis and the 'H. heilmannii' type two isolate share >98 % 16S rRNA gene sequence similarity (Hanninen et al, 1996;Jalava et al, 1997;Paster et al, 1991).…”

Section: Introductionmentioning

confidence: 99%

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Description of ‘Candidatus Helicobacter heilmannii’ based on DNA sequence analysis of 16S rRNA and urease genes

O’Rourke

Solnick

Neilan

et al. 2004

International Journal of Systematic and Evolutionary Microbiology

128

166

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While Helicobacter pylori is accepted as the major bacterial agent of gastric disease in humans, some patients and many animals are infected with a larger, tightly helical-shaped bacterium previously referred to as ‘Helicobacter heilmannii’ or ‘Gastrospirillum hominis’. Taxonomic classification of these bacteria has been hampered by the inability to cultivate them in vitro and by the inadequate discriminatory power of 16S rRNA gene sequence analysis. This study describes the detection and phylogenetic analysis of 26 different gastrospirillum isolates from humans and animals, which incorporates sequence data based on the 16S rRNA and urease genes. Fifteen gastrospirilla detected in humans, primates and pigs clustered with ‘Candidatus Helicobacter suis’, thus expanding the host range for this organism. By comparison, based on 16S rRNA data, the remaining 11 gastrospirilla could not be differentiated from Helicobacter felis, Helicobacter bizzozeronii and Helicobacter salomonis. However, urease gene sequence analysis allowed for the discrimination of this latter group into four discrete clusters, three of which contained the above recognized species. The fourth cluster contained isolates from human and feline hosts, and should provisionally be considered a unique bacterial species, for which the name ‘Candidatus Helicobacter heilmannii’ is proposed.

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Section: Urease-based Pcrs For the Putative 'H Heilmannii' Speciessupporting

confidence: 63%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Description of ‘Candidatus Helicobacter heilmannii’ based on DNA sequence analysis of 16S rRNA and urease genes

O’Rourke

Solnick

Neilan

et al. 2004

International Journal of Systematic and Evolutionary Microbiology

128

166

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Helicobacter

Owen¹

2010

Topley &Amp; Wilson's Microbiology and Microbial Infections

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Helicobacter

On¹,

Lee²,

O’Rourke³

et al. 2015

Bergey's Manual of Systematics of Archaea and Bacteria

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He . li . co . bac ' ter. Gr. n. helix a spiral; M.L. masc. n. bacter a staff; M.L. masc. n. Helicobacter a spiral rod. Proteobacteria / Epsilonproteobacteria / Campylobacterales / Helicobacteraceae / Helicobacter Cells may be curved, spiral, or fusiform rods , 0.2–1.2 × 1.5–10.0 µm. Spiral cells may be tightly or loosely wound depending on the species, and on the age and condition of the culture examined. Cells in old cultures or those exposed to air become coccoid. Ultrastructural studies show that periplasmic fibers may be observed on the cell surface of a few taxa and an electrondense glycocalyx‐ or capsule‐like layer has been observed on the cell surface of some species. Nonsporeforming. Gram negative. Motile with a rapid corkscrew‐ or slower wave‐like motion due to flagellar activity. Multiple sheathed flagella are seen in most species , frequently with a bipolar distribution. Typical cell morphologies of various Helicobacter species are shown in Figs. BXII.ε.5 and BXII.ε.6. The mol % G + C of the DNA is : 24–48. Type species : Helicobacter pylori (Marshall, Royce, Annear, Goodwin, Pearman, Warren, Armstrong 1984) Goodwin, Armstrong, Chilvers, Peters, Collins, Sly, McConnell, Harper 1989a, 403 ( Campylobacter pylori Marshall, Royce, Annear, Goodwin, Pearman, Warren, Armstrong 1984, 87.)

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Helicobacter salomonis sp. nov., a Canine Gastric Helicobacter sp. Related to Helicobacter felis and Helicobacter bizzozeronii

Cited by 130 publications

References 22 publications

Description of ‘Candidatus Helicobacter heilmannii’ based on DNA sequence analysis of 16S rRNA and urease genes

Description of ‘Candidatus Helicobacter heilmannii’ based on DNA sequence analysis of 16S rRNA and urease genes

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