Faltýnková, J.: Explant cultures of higher plants 29. Diploma thesis, Charles University in Prague, Faculty of Pharmacy in Hradec Králové, 2008 The goal ofmythesis was to verify biotransformation posibility of theDatura meteloides culture. Hydroquine - the precursor of arbutin was added into these cultures. Precursor used in this study was prepared in concentration of 100 mg/l and 200 mg/l. Exposition of precursor was 24, 48, 72, 96, 120, 144 and 168 hours under constant conditions. By the qualitative and quantitative analysis I found the presence of studyied arbutin metabolite in all observed samples. The biggest arbutin volume was obtained after 168 hours of cultivation with precursor of concentration at 200 mg/l ( 3,05%). The in_uence of...