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The detection of food with gene manipulated organisms in chicken
VRABCOVÁ, Petra
The aim of this study is to confirm or to refutate possible transfer of transgene from diet containing genetically modified organism in blood of broilers. Broilers were fed with diets containing Roundup Ready soybean and Bt maize (MON810). DNA was isolated from the whole blood of these broilers. PCR using primers for growth hormon was performed as control of isolation. Then samples were submitted to PCR for detection of fragments of lectin genes from soya and HMG gene from maize. Fragments of soya DNA and maize DNA in the blood were detected. Subsequently, the detection of specific transgene of RoundupReady soya and Bt maize (MON810) in blood samples was positive too.
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Vliv GM kukuřice na entomofaunu
SVOBODOVÁ, Zdeňka
Presented thesis examines possible environmental impact of the genetically modified (GM) maize expressing insecticidal Cry proteins. The impact was assessed from differences in the communities of the ground and above-ground arthropods in plots sown with the standard and the GM maize, respectively. The results revealed that neither the abundance nor the species richness of arthropods was affected. Laboratory experiments were used to study effect of maize expressing several types of Cry proteins on the arthropod predators. Despite the proven exposure of the predators to Cry proteins in the food, no Cry proteins accumulation and deleterious effects on predators were observed. The results confirm the importance of predators in insect resistance management using the GM maize seed blends method.
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Impact of genetically modified maize expressing Cry3Bb1 toxin on the non-target organisms.
SVOBODOVÁ, Zdeňka
Presented study compares impacts of the GM maize MON 88017 and the non-transgenic maize on the non-target invertebrates. The Diabrotica-resistant and herbicide-tolerant GM maize may become important for most of Europe as the spred of Diabrotica virgifera virgifera LeConte continues but its implementation has been hindered by fears of undesirable environmental effects. I confirmed that MON88017 expresses the insecticidal Cry3Bb1 toxin but I found no evidence of any negative impact on the monitored species. Both the composition and the species abundances of invertebrate communities were similar to those in the stands of the conventional non-transgenic maize varieties.
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Development of GM Foods Production in the Czech Republic
Malina, Petr ; Slavíková, Lenka (advisor) ; Vejchodská, Eliška (referee)
In my thesis I would like to focus on the research of efficiency in cultivating genetically modified plants in the Czech Republic. I am going to ask questions about the approach to this dilemma in the Czech environment, about how we stand compared to other EU members and about the reasons behind it. The aim of my work is to analyse how our agriculturists employ the possibilities of genetic modification and how it is paying off. What is our attitude towards the reasoning of world's supporters and opposers of genetically modified organisms? I would also think about a Czech consumer opinion research. On the basis of these questions and those alike I would subsequently like to set, as a goal, an estimate of the potential of GM foods production in the Czech environment in years to come.
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