Revealing the Tick Microbiome: Insights into Midgut and Salivary Gland Microbiota of Female <i>Ixodes ricinus</i> Ticks

The ectoparasite <i>Ixodes ricinus</i> is an important vector for many tick-borne diseases (TBD) in the northern hemisphere, such as Lyme borreliosis, rickettsiosis, human granulocytic anaplasmosis, or tick-borne encephalitis virus. As climate change will lead to rising temperatures in t...

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Bibliographic Details
Main Authors: Anna Wiesinger, Jasmin Wenderlein, Sebastian Ulrich, Stephanie Hiereth, Lidia Chitimia-Dobler, Reinhard K. Straubinger
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/24/2/1100
Description
Summary:The ectoparasite <i>Ixodes ricinus</i> is an important vector for many tick-borne diseases (TBD) in the northern hemisphere, such as Lyme borreliosis, rickettsiosis, human granulocytic anaplasmosis, or tick-borne encephalitis virus. As climate change will lead to rising temperatures in the next years, we expect an increase in tick activity, tick population, and thus in the spread of TBD. Consequently, it has never been more critical to understand relationships within the microbial communities in ticks that might contribute to the tick’s fitness and the occurrence of TBD. Therefore, we analyzed the microbiota in different tick tissues such as midgut, salivary glands, and residual tick material, as well as the microbiota in complete <i>Ixodes ricinus</i> ticks using 16S rRNA gene amplicon sequencing. By using a newly developed DNA extraction protocol for tick tissue samples and a self-designed mock community, we were able to detect endosymbionts and pathogens that have been described in the literature previously. Further, this study displayed the usefulness of including a mock community during bioinformatic analysis to identify essential bacteria within the tick.
ISSN:1661-6596
1422-0067