Molecular characterization of bacterial communities of two neotropical tick species (Amblyomma aureolatum and Ornithodoros brasiliensis) using rDNA 16S sequencing

Ticks are one of the main vectors pathogens for humans and animals worldwide. However, they harbor non-pathogenic microorganisms that important their survival, facilitating both nutrition immunity. We investigated bacterial communities associated with two neotropical tick species human veterinary potential health importance from Brazil: Amblyomma aureolatum Ornithodoros brasiliensis . In A. (adult ticks collected wild canids Southern Brazil), predominant phyla were Proteobacteria (98.68%), Tenericutes (0.70%), Bacteroidetes (0.14%), Actinobacteria (0.13%), Acidobacteria (0.05%). The genera Francisella (97.01%), Spiroplasma Wolbachia (0.51%), Candidatus Midichloria (0.25%), Alkanindiges (0.13%). in O. (adults, fed unfed nymphs at environment Brazil) (90.27%), (7.38%), Firmicutes (0.77%), (0.44%), Planctomycetes (0.22%). Coxiella (87.71%), Nocardioides (1.73%), Saccharopolyspora (0.54%), Marmoricola (0.42%), Staphylococcus (0.40%). Considering animal which can be transmitted by ticks, sp. was found all stages brasiliensis, Rickettsia females Banhado dos Pachecos (BP) Viamão municipality, Brazil, These results deepen our understanding tick-microbiota relationship Ixodidae Argasidae, driving new studies focus on manipulation microbiota to prevent outbreaks tick-borne diseases South America.