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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Diversity of ciliates of the family Nyctotheridae in cockroaches
 Soviš, Matyáš ; Čepička, Ivan (advisor) ; Škaloud, Pavel (referee)
Cockroaches are tremendously interesting group of insects with broad morphological diversity and a wide range of lifestyles. They are known to host a plethora of fascinating protists ranging from excavate flagellates through gregarines and amoebozoans to extraordinary ciliates of the group Armophorea. There is however, in contrast to the flagellates, only scarce information on these intestinal ciliates. The available data are mostly only morphological and there is a limited information on their host specificity. Therefore, we chose to inspect the diversity of ciliates in cockroaches, both in the stock cultures of Department of Zoology on Charles University as well as in those collected in nature. We studied their presence in various cockroach lineages, obtained 18S rRNA gene sequence data, and assessed their phylogenetic relationships. We also performed protargol staining of the cells to characterize the morphology of individual lineages.
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Diversity and host specificity of intestinal protists of cockroaches and termites (Blattodea)
 Soviš, Matyáš ; Čepička, Ivan (advisor) ; Kolísko, Martin (referee)
The cockroaches (Blattodea) are morphologically and ecologically diverse group of insects living in manifold habitats. Some of them including many termites (Isoptera) feed on wood in various stages of decay. This is however difficult to metabolise for the vast majority of cockroaches and termites and this is why they harbour in their hindguts symbiotic protists belonging mostly to the excavate lineages Parabasalia and Preaxostyla. In this thesis I sum up the knowledge on the diversity of organisms living in the hindgut of cockroaches and termites and on the host specificity of the most important groups of symbiotic protists. Keywords: Blattodea, Isoptera, hindgut, host specificity, diversity, protist, Parabasalia, Oxymonadida
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