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Study of evolution of insect pheromone biosynthetic fatty acyl desaturases
Buček, Aleš ; Pichová, Iva (advisor) ; Žďárek, Jan (referee) ; Doležel, David (referee)
Insects account for more than one million of described species with an ecological and economic impact disproportional to their minute body size. Among the factors which have contributed to their evolutionary success, insect secondary metabolites such as defensive compounds and chemical signals are regarded to play a major role. This thesis aims at uncovering the molecular mechanisms underlying evolution of ubiquitous insect secondary metabolites - sex pheromones (SPs), i.e. chemical signals mediating mate finding and mating between individuals of the same species. The thesis focuses on a class of oxidoreductase enzymes, membrane fatty acid desaturases (mFADs), which introduce double bonds into hydrocarbon chains of fatty acyls and thus produce precursors of unsaturated fatty acid- derived SPs. mFADs are involved in SP biosynthesis in e.g. moths (Lepidoptera), flies (Diptera), cockroaches and termites (Blattodea), wasps and bees (Hymenoptera) - some of the most species-rich insect orders. Since SPs are principal to species reproductive isolation, uncovering the molecular basis of insect SP biosynthesis holds promises to contribute to answering fundamental questions concerning the insect ecology and evolution. The insect mFADs with diverse enzymatic specificities also represent a naturally available...
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Study of evolution of insect pheromone biosynthetic fatty acyl desaturases
Buček, Aleš
Insects account for more than one million of described species with an ecological and economic impact disproportional to their minute body size. Among the factors which have contributed to their evolutionary success, insect secondary metabolites such as defensive compounds and chemical signals are regarded to play a major role. This thesis aims at uncovering the molecular mechanisms underlying evolution of ubiquitous insect secondary metabolites - sex pheromones (SPs), i.e. chemical signals mediating mate finding and mating between individuals of the same species. The thesis focuses on a class of oxidoreductase enzymes, membrane fatty acid desaturases (mFADs), which introduce double bonds into hydrocarbon chains of fatty acyls and thus produce precursors of unsaturated fatty acid- derived SPs. mFADs are involved in SP biosynthesis in e.g. moths (Lepidoptera), flies (Diptera), cockroaches and termites (Blattodea), wasps and bees (Hymenoptera) - some of the most species-rich insect orders. Since SPs are principal to species reproductive isolation, uncovering the molecular basis of insect SP biosynthesis holds promises to contribute to answering fundamental questions concerning the insect ecology and evolution. The insect mFADs with diverse enzymatic specificities also represent a naturally available...
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Ancient coppice woodlands - methodology of inventory, evidence and management
Maděra, Petr ; Buček, Antonín ; Úradníček, Luboš ; Slach, Tomáš ; Friedl, Michal ; Machala, Martin ; Řepka, Radomír ; Lacina, Jan ; Černušáková, Linda ; Volařík, Daniel
Methodology is focused on suggestion how to do an inventory, evidence and management of ancient coppice woodlands. Ancient coppice woodlands are defined as longterm and continuously coppiced forest stands.
Fulltext:  PDF
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Comprehensive search of problem of forest management in the areas affected by landslides and rock falling
Bajer, B. ; Buček, A. ; Divíšek, Jan ; Friedl, M. ; Halas, Petr ; Kirchner, Karel ; Kuda, František ; Lacina, Jan ; Roštínský, Pavel ; Simon, J. ; Vavříček, D.
The present report represents the 1st outcome of research project “The optimization of forest management strategies on slopes endangered by landslides and rock falling – a methodology for forest-planting practices”. Submitted report is search of published and unpublished data relating to geomorphological, geological and landscape aspects of origin as well as distribution of the landslides and rock falling to the forest management.
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Advanced Techniques Demo Using OpenGL
Buček, Antonín ; Přibyl, Jaroslav (referee) ; Herout, Adam (advisor)
This thesis demonstrates advanced techniques using OpenGL. The work is conceived as a demo without any size restrictions. It focuses on creating 3D world, which consists of inner rooms complex. Some additional interesting objects, lighting and shadows enrich the rooms. Particle systems, which were used to create explosions, smokes and some other particle effects are described in the thesis, too. 3D machine models fight between themselves using laser beams and form the story of the demo. Important part of the work is a movement model which is applied to both models and avatar. Sound track completes the demo.
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Preparation procedure of dwarf pine stands removal in the Hrubý Jeseník Mts. summits
Maděra, P. ; Šenfeldr, M. ; Buček, A. ; Tippner, A. ; Roštínský, Pavel ; Culek, M. ; Friedl, M. ; Vavříček, D. ; Pecháček, J. ; Špinlerová, Z. ; Matějíček, J.
The report describes a preparation procedure of dwarf pine stands removal in the Hrubý Jeseník Mts. assessing selected hazardous environmental phenomena possibly occurring in case of its realization. The hazards include hydrological conditions change, rill erosion, sheet erosion, intraskeletal erosion, snow movement, soil retention change, increase in visitors movement, timberline and spruce growth line change, and biomass quantity. A calculation of damage to forest owners due to dwarf pine stands removal from woodland is supplemented. The procedure was certificated by the Ministry of Agriculture of the Czech Republic (Certification No. 101637/2012-MZE-16222/M45).
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The Landscape of the City of Brno
Buček, A. ; Havlíček, M. ; Kirchner, Karel
The landscape of the Brno City is a landscape of connections and contrasts, distinguished by marked geodiversity and biodiversity. This phenomenon is significantly governed by the geographical position of the City situated at the boundary of two major natural (physicogeographical) units of Europe: the Hercynian Central Europe area and the Alpine-Carpathian area. The landscape units were delineated on the basis of geomorphological classification because relief is relatively the most stable and often determining constituent in the process of shaping natural and cultural landscapes. The classification of landscape units consists of basic data (area, position, homogeneity or heterogeneity), an outline of main features of particular landscape components (georelief, climate and waters, soils, biota) and an evaluation of settlement conditions and land use in the past and in the present.
Fulltext: content.csg - PDF
Plný tet: UGN_0385043 - PDF
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