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Vliv potravní preference všenek (Phthiraptera: Amblycera) na formování jejich mikrobiomů
ŽIŽKOVÁ, Kateřina
Microbiome diversity of chewing lice belongs to generaly unexplored topics. This thesis provides the first insight into the microbiomes of 15 chewing lice species of the genus Menacanthus. We detected the presence of two dominant symbiotic bacteria, which occurred in almost all species. We also compared the microbiome diversity of lice with different diet preferences (blood feeding and feather feeding species). Based on these analyses, we identified the main determinants shaping the microbiomes of Menacanthus lice. The microbiomes are namely affected by Menacanthus species identity, its geographical origin, dietary niche, and the extent of the host spectrum that the lice parasitize.
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The symbiotic bacteria of lice of genus \kur{Polyplax}: general phylogenetic and genomic characterisation
ŘÍHOVÁ, Jana
Blood-sucking lice of the genus Polyplax harbour two bacterial endosymbionts, one from family Legionellales and the other from family Neisseriales. Fylogenetic and genomic analyses reveal typical features of endosymbiotic bacteria and coevolution history with the host. In the genome of the endosymbiont from family Legionellales I found operon, which encodes biosynthesis of biotin, essential vitamin, especially for blood-sucking insects living on low-nutrient diet. This operon was probably horizontally transfer from Wolbachia, nutrient endosymbiont of bedbug Cimex lectularius.
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Physical model of 7-level VSI in 4-7L topology
Semerád, Radko ; Baran, Josef
Technical design and parameters of a 3-phase low-voltage VSI model of about 5kVA output power are described. The VSI is connected in 7-level topology with flying capacitors. For economical reasons, 3 odd capacitors of them have reduced capacitance (the 4-7L topology). The model is controlled using only POF fibres including voltage and current sensors.
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