1. Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 53210 Pardubice, Czech Republic
2. Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
3. Laboratory of Growth Regulators, Centre of the Region Haná for Biotechnological and Agricultural Research, Palacky University & Institute of Experimental Botany ASCR, Šlechtitelů 27, 78371 Olomouc, Czech Republic