Localization of the bacterial symbiont Candidatus Midichloria mitochondrii within the hard tick Ixodes ricinus by whole-mount FISH staining
2013
Epis, Sara | Mandrioli, Mauro | Genchi, Marco | Montagna, Matteo | Sacchi, Luciano | Pistone, Dario | Sassera, Davide
Here, we present an investigation on the spatial distribution of the bacterial symbiont Candidatus Midichloria mitochondrii within Ixodes ricinus, by whole mount fluorescence in situ hybridization (FISH). M. mitochondrii is a peculiar, recently discovered bacterium that resides in the mitochondria of female ticks. We applied a rapid and specific FISH protocol with oligonucleotide probes targeted on the 16S rRNA of M. mitochondrii, 12S rRNA of tick mitochondria, and a probe revealing active mitochondria. In this report that represents the first application of whole mount FISH on ticks, we observed strong, specific fluorescence signals in all the examined life stages, as the optimized protocol allowed us to overcome the autofluorescence interference of the cuticle. Cellular localization and quantification of the symbionts were also assessed with electron microscopy and specific real-time PCR, respectively.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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