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Impact of elevated concentration of carbon dioxide on diurnal changes of Rubisco activity and its content
Zítková, Jana ; Vítová, Eva (referee) ; Hrstka, Miroslav (advisor)
Diurnal changes of initial and total activity and content of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) under conditions of ambient (350 µmol mol-1) and elevated (E = 700 µmol mol 1) concentration CO2 were measured in needles of Norway spruce. Needles of Norway spruce were taken on 22th July in two-hours from 3:30 a. m. till 10:30 p. m. The Rubisco activity was determined by spectrophotometry, the Rubisco content was detected by SDS-PAGE. The Rubisco activity was in most samples statistically significantly lower in needles cutlivated under ambient carbon dioxide then in needles cultivated under elevated carbon dioxide. Diagrams of the Rubisco activity shows absence of night inhibitor CA1P. The Rubisco activity was directly proportional to the intensity of photosynthetically active radiation in time from 7:00 a. m. till 7:30 p. m. The Rubisco content was statistically significantly higher in needles of Norway spruce cultivated under ambient carbon dioxide than in needles cultivated under elevated CO2, which shows acclimation of the Rubisco content during long-term effect of elevated CO2 concentration.
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Influence of elevated carbon dioxide concentration on the quality of wheat flour
Zítková, Jana ; Vránová, Dana (referee) ; Hrstka, Miroslav (advisor)
This work treats of influence of carbon dioxide increased concentration on wheat yield and quality of wheat grains and flour. It focuses above all on total content nitrogenous substances in flour, content of proteins, gluten and bake charackteristics. Generally, increased carbon dioxide concentrations cause an increase of wheat yield and decrease of total content of nitrogenous substances. Gluten content is lower and that is why the bake properties are worse too.
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Impact of elevated concentration of carbon dioxide on diurnal changes of Rubisco activity and its content
Zítková, Jana ; Vítová, Eva (referee) ; Hrstka, Miroslav (advisor)
Diurnal changes of initial and total activity and content of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) under conditions of ambient (350 µmol mol-1) and elevated (E = 700 µmol mol 1) concentration CO2 were measured in needles of Norway spruce. Needles of Norway spruce were taken on 22th July in two-hours from 3:30 a. m. till 10:30 p. m. The Rubisco activity was determined by spectrophotometry, the Rubisco content was detected by SDS-PAGE. The Rubisco activity was in most samples statistically significantly lower in needles cutlivated under ambient carbon dioxide then in needles cultivated under elevated carbon dioxide. Diagrams of the Rubisco activity shows absence of night inhibitor CA1P. The Rubisco activity was directly proportional to the intensity of photosynthetically active radiation in time from 7:00 a. m. till 7:30 p. m. The Rubisco content was statistically significantly higher in needles of Norway spruce cultivated under ambient carbon dioxide than in needles cultivated under elevated CO2, which shows acclimation of the Rubisco content during long-term effect of elevated CO2 concentration.
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Influence of elevated carbon dioxide concentration on the quality of wheat flour
Zítková, Jana ; Vránová, Dana (referee) ; Hrstka, Miroslav (advisor)
This work treats of influence of carbon dioxide increased concentration on wheat yield and quality of wheat grains and flour. It focuses above all on total content nitrogenous substances in flour, content of proteins, gluten and bake charackteristics. Generally, increased carbon dioxide concentrations cause an increase of wheat yield and decrease of total content of nitrogenous substances. Gluten content is lower and that is why the bake properties are worse too.
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