Department of Food Science Faculty of Agrobiology Food and Natural Resources Czech University of Life Sciences Prague Kamýcká 129 16500 Prague Czech Republic

Department of Plant Tissue Cultures Institute of Organic Chemistry and Biochemistry Academy of Sciences of the Czech Republic Prague Czech Republic

Laboratory of Plant Biotechnologies Institute of Experimental Botany AS CR v v i the Czech Republic

Laboratory of Plant Biotechnologies Joint Laboratory of Institute of Experimental Botany Academy of Sciences of the Czech Republic and Research Institute of Crop Production Prague 6 Czech Republic

Laboratory of Plant Biotechnologies Joint Laboratory of Institute of Experimental Botany AS CR v v i and Research Institute of Crop Production v v i Rozvojova 263 Prague 6 Lysolaje