Rigorous theses

Rigorous theses 15,503 records found  beginprevious15379 - 15388nextend  jump to record: Search took 0.01 seconds. 
Cytoskelet vazebné velké RNP komplexy u samčího gametofytu tabáku (EPPs) jsou asociované s ribosomy a účastní se syntézy proteinů, jejich zpracování a lokalizaci
REŇÁK, David
In the presented work the composition and function of stored ribonucleo-protein particles (EPPs) in tobacco male gametophyte was studied. EPP particles serve as a long-term store of various mRNA molecules, ribosomal and cytoskeletal proteins and other components. They are synthesized during the pollen maturation, kept untranlated and gradually used in proteosynthesis in progamic phase to support the rapid pollen tube growth.
The effect of nutrient level on plant structure and production in a wet grassland: a field study
KÁPLOVÁ, Miroslava
Since the 1950s, agricultural intensification has affected the structure and functioning of ecological systems including wet grasslands. Our study site, a wet grassland near Třeboň, Czech Republic, was historically a sedge meadow, but increased nutrient additions, a long-lasting flood in 2002 and changed mowing patterns resulted in domination by Phalaris arundinacea. The aim of the study was to determine how different nutrient conditions may affect plant structure and production in a wet grassland used for hay production.
Elevational gradients in phylogenetic structure of ant communities reveal the interplay of biotic and abiotic constraints on diversity
MACHÁČ, Antonín
Incorporating information on species? phylogeny into the framework of conventional community ecology, we illustrate that ant communities situated in lowlands are primarily structured by interspecific competition. In contrast, highland communities are formed by habitat filtering on phylogenetically conserved temperature tolerances. In sum, our study highlights the potential role of niche constraints, environmental temperature, and competition in shaping broad-scale diversity gradients.
New view on the age-specificity of pig Cryptosporidium by species-specific primers for distinguishing Cryptosporidium suis and Cryptosporidium pig genotype II
JENÍKOVÁ, Martina
Two species of Cryptosporidium are routinely found in pigs: Cryptosporidium suis and Cryptosporidium pig genotype II. Identification of Cryptosporidium species and genotypes currently relies on molecular methods such as polymerase chain reaction (PCR) followed by restriction fragment lenght polymorphism (RFLP) or gene sequencing. However their applications are limited in identification of mixed infections. To overcome this problem, novel species specific primers were designed and tested in this study.

Rigorous theses : 15,503 records found   beginprevious15379 - 15388nextend  jump to record:
Interested in being notified about new results for this query?
Subscribe to the RSS feed.