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Microscopic fungi in caves and other underground shelters
Horáková, Karolína ; Kubátová, Alena (advisor) ; Hujslová, Martina (referee)
This Bachelor thesis is meant as a literature search concerned with diversity of microscopic fungi in caves, prospectively in underground spaces which were made by humankind. The caves represent unique environment for living organisms which is characteristic with specific microclimatic conditions and with deficient sources of nutrients. I have concentrated my focus to micromycetes which were isolated from sediments, atmosphere, dead insect and excrements in caves. The next part of my Bachelor thesis is aimed at species Geomyces destructans which causes so called white-nose syndrome illness - geomycosis on hibernating bats. It is an actual problem which interests scientists such as mycologists, zoologists and parasitologists.
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Consequences of an infectious disease on genetic information in DNA sequences in bats
Nováková, Markéta ; Martínková, Natália (advisor) ; Lučan, Radek (referee)
Whitenose syndrome is an emerging fungal disease of bats causing massive dieoffs in North American populations. The fungus causes lesions on bat skin, mainly on noses, ears and wing membranes. The infection by the fungus is accompanied by serious disruption of metabolism and hibernation physiology that is lethal to bats in North America. European bats seem to survive the disease in greater numbers. Since the fungus is probably of European origin, this study assumes that bats in Europe have developed inheritable defence mechanisms to the disease. The infection by the fungus serves as a strong selective pressure. We tested sequences of 7 genes for signs of positive selection using maximum likelihood approach. We detected past positive selection in the gene for transglutaminase 1.
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Diversity and interactions of microbes associated with White nose syndrome
Fabryová, Anna ; Kolařík, Miroslav (advisor) ; Haňáčková, Zuzana (referee)
White-nose syndrome is a severe disease of hibernating bats, which has been lately revealed among their colonies in United States and Canada. This infection causes extensive declines of bat populations in aforementioned area. Causative agent of this disease is a psychrophilic fungus Pseudogymnoascus destructans. The syndrome got its name according to a white fungal growth found on affected bats. Recently it has been shown that growth of P. destructans is probably inhibited by Pseudomonas bacteria species. In this work existing knowledges of bacterial-fungal interactions are summarized and significant antifungal metabolites of Pseudomonas species are exhibited.
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Microscopic fungi in caves and other underground shelters
Horáková, Karolína ; Kubátová, Alena (advisor) ; Hujslová, Martina (referee)
This Bachelor thesis is meant as a literature search concerned with diversity of microscopic fungi in caves, prospectively in underground spaces which were made by humankind. The caves represent unique environment for living organisms which is characteristic with specific microclimatic conditions and with deficient sources of nutrients. I have concentrated my focus to micromycetes which were isolated from sediments, atmosphere, dead insect and excrements in caves. The next part of my Bachelor thesis is aimed at species Geomyces destructans which causes so called white-nose syndrome illness - geomycosis on hibernating bats. It is an actual problem which interests scientists such as mycologists, zoologists and parasitologists.
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