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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Vertical gradient of Hymenoscyphus fraxineus spore dispersal at infected locality in Boršov nad Vltavou
 ŠTOIDL, Petr
Hymenoscyphus fraxineus is a pathogenic sac fungus causing ash tree necrosis throughout Europe, spreading predominantly through the air using ascospores. The aim of this thesis was to quantitatively describe the occurrence of spores of the causative agent of ash trees necrosis at different heights above the source of infection. The results were subsequently used to consider the inoculum potential of this pathogenic fungus for longer distance spreading using air currents. The qPCR method was used for the detection and quantification of DNA concentration. Based on a statistical analysis of the obtained molecular data a dependence of the occurrence of different amounts of H. fraxineus on height was proved. The main contribution of this thesis lies in charting the range of the H. fraxineus pathogen spread in the air column which is directly related to the range of spores to greater distances.
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Maedi visna - genetic aspects of susceptibility/resistance in sheep
 ŠTOIDL, Petr
The aim of this research is to evaluate the rate of correlation between Maedi-visna sheep disease and the polymorphism on 35th position of the gen for TMEM154 transmembrane protein. The incidence of Maedi-visna disease was evaluated using serological ELISA method at the State Veterinary Institute Jihlava, and for TMEM154 gene polymorphism detection, molecular PCR method was used. This research proves correlation between Maedi-visna sheep disease and the gene polymorphism for TMEM154 transmembrane protein. The main contribution of this research is the possibility to eradicate Maedi-visna virus by eliminating sheep with less resistant genotype.
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