1. Institute of Organic Chemistry, Polish Academy of Sciences, Warsaw, Poland
2. Pharmaceutical Research Institute, Warsaw, Poland
3. Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Palacký University, Olomouc, Czech Republic
4. Laboratory of Growth Regulators, Centre of the Region Haná for Biotechnological and Agricultural Research, Institute of Experimental Botany ASCR & Palacký University, Olomouc, Czech Republic