Molecular evidence of Chlamydiales in ticks from wild and domestic hosts in Sardinia, Italy
| Autor: | Cipriano Foxi, Giovanna Masala, Valentina Chisu, Antonio Tanda |
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| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
Ixodidae Rhipicephalus sanguineus 030106 microbiology Zoology Chlamydiaceae Infections Tick 03 medical and health sciences RNA Ribosomal 16S parasitic diseases Parachlamydia acanthamoebae Animals Chlamydiaceae Rhipicephalus annulatus Chlamydiales General Veterinary biology General Medicine bacterial infections and mycoses biology.organism_classification Insect Vectors Molecular Typing Parachlamydiaceae 030104 developmental biology Infectious Diseases Italy Parasitology Animals Domestic Insect Science |
| Zdroj: | Parasitology Research. 117:981-987 |
| ISSN: | 1432-1955 0932-0113 |
| Popis: | Ticks are well known to be important vectors for a wide range of bacteria, viruses and protozoa affecting human and animal health. Ixodid ticks are widely distributed in Sardinia, and an increasing number of tick-borne bacteria have been documented in the island. A growing number of evidence are supporting the hypothesis of alternative transmission routes for chlamydial bacteria such as the involvement of vectors. This study was conducted to provide possible molecular detection of members belonging to the Chlamydiales order in Sardinian ticks and to update information concerning the presence of new ectoparasite-borne bacteria in ticks collected from domestic and wild hosts in a typical Mediterranean environment. A total of 378 ticks were individually screened with a pan-Chlamydiales specific primers targeting the 16S rRNA gene. Chlamydiales DNA was detected in 28% of the total ticks analyzed. The analyses of sequences highlighted that Rhipicephalus sanguineus sensu lato, Rhipicephalus bursa, Rhipicephalus annulatus, Haemaphysalis sulcata, Haemaphysalis punctata and Dermacentor marginatus ticks exhibited DNA of Chlamydiaceae and Parachlamydiaceae members. Our results revealed that DNA of zoonotic microorganisms such as C. psittaci, C. abortus and the emerging pathogen Parachlamydia acanthamoebae are present in Sardinian ticks. Since routes of Chlamydia transmission are yet to be fully defined, the role of ticks as possible vectors for Chlamydiales remains the most challenging and interesting question to be addressed in future research. Continued monitoring of these pathogens in tick vectors is needed to provide strategies for controlling of possible chlamydial infections and disease outbreaks in the island. |
| Databáze: | OpenAIRE |
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