ArticleParasites & vectors2016
Rickettsia vini n. sp. (Rickettsiaceae) infecting the tick Ixodes arboricola (Acari: Ixodidae).
Article in Parasites & vectors, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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15 citing papers in PubMed, 40 citations in OpenAlex.
- Prevalence of tick-borne pathogens in ixodid ticks collected from domestic animals in southeast Iran.New microbes and new infections · 2026Article
- High seroprevalence of Rickettsia spp. and molecular detection of Rickettsia amblyommatis in human-biting ticks from the eastern Amazon, Brazil.Parasites & vectors · 2025Article
- Ticks and Tick-Borne Pathogens in Wild Animals and Birds from Two Rehabilitation Facilities in Greece.Pathogens (Basel, Switzerland) · 2024Article
- Survey of Rickettsia spp. in ticks (Acari: Ixodidae) infesting opossums (Didelphis albiventris) and capybaras (Hydrochoerus hydrochaeris) from an urban park in southeastern Brazil.Experimental & applied acarology · 2024Article
- Survey of ticks and tick-borne pathogens in wild chimpanzee habitat in Western Uganda.Parasites & vectors · 2023Article
- Procedure for spotted fever group Rickettsia isolation from limited clinical blood specimens.PLoS neglected tropical diseases · 2022Article
- Investigation ofPathogens (Basel, Switzerland) · 2022Article
- Rickettsia conorii subsp. israelensis infection: a case report from southeast Iran.BMC infectious diseases · 2022Article
- Novel Genotypes of NidicolousFrontiers in veterinary science · 2021Article
- Isolation of Candidatus Rickettsia vini from Belgian Ixodes arboricola ticks and propagation in tick cell lines.Ticks and tick-borne diseases · 2020Article
- Novel Rickettsia genotypes in ticks in French Guiana, South America.Scientific reports · 2020Article
- A relapsing fever Borrelia and spotted fever Rickettsia in ticks from an Andean valley, central Chile.Experimental & applied acarology · 2019Article
- Ticks and serosurvey of anti-Rickettsia spp. antibodies in wild boars (Sus scrofa), hunting dogs and hunters of Brazil.PLoS neglected tropical diseases · 2019Article
- Isolation of known and potentially pathogenic tick-borne microorganisms from European ixodid ticks using tick cell lines.Ticks and tick-borne diseases · 2019Article
- Prevalence and diversity of Rickettsia species in ectoparasites collected from small rodents in Lithuania.Parasites & vectors · 2018Article
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Authors and funding
5 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundRecently, a new rickettsia named 'Candidatus Rickettsia vini' belonging to the spotted fever group has been molecularly detected in Ixodes arboricola ticks in Spain, the Czech Republic, Slovakia and Turkey, with prevalence reaching up to 100 %. The aim of this study was to isolate this rickettsia in pure culture, and to describe it as a new Rickettsia species.
methodsA total of 148 ornitophilic nidicolous ticks Ixodes arboricola were collected in a forest near Breclav (Czech Republic) and examined for rickettsiae. Shell vial technique was applied to isolate rickettsiae in Vero cells. Rickettsial isolation was confirmed by optical microscopy and sequencing of partial sequences of the rickettsial genes gltA, ompA, ompB, and htrA. Laboratory guinea pigs and chickens were used for experimental infestations and infections. Animal blood sera were tested by immunofluorescence assay employing crude antigens of various rickettsiae.
resultsRickettsia vini n. sp. was successfully isolated from three males of I. arboricola. Phylogenetic analysis of fragments of 1092, 590, 800, and 497 nucleotides of the gltA, ompA, ompB, and htrA genes, respectively, showed closest proximity of R. vini n. sp. to Rickettsia japonica and Rickettsia heilongjiangensis belonging to the spotted fever group. Experimental infection of guinea pigs and chickens with R. vini led to various levels of cross-reactions of R. vini-homologous antibodies with Rickettsia rickettsii, Rickettsia parkeri, 'Candidatus Rickettsia amblyommii', Rickettsia rhipicephali, Rickettsia bellii, and Rickettsia felis. Laboratory infestations by R. vini-infected I. arboricola larvae on chickens led to no seroconversion to R. vini n. sp., nor cross-reactions with R. rickettsii, R. parkeri, 'Ca. R. amblyommii', R. rhipicephali, R. bellii or R. felis.
conclusionsOur results suggest that R. vini n. sp. is possibly a tick endosymbiont, not pathogenic for guinea pigs and chickens. Regarding specific phenotypic characters and significant differences of DNA sequences in comparison to the most closely related species (R. japonica and R. heilongjiangensis), we propose to classify the isolate as a new species, Rickettsia vini.
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