1. Institute of Organic ChemistryJohannes Kepler University Linz Altenbergerstraße 69 4040 Linz Austria
2. Department of Organic ChemistryFaculty of SciencePalacky University tř. 17. listopadu 1192/12 771 46 Olomouc Czech Republic
3. Laboratory of Growth RegulatorsThe Czech Academy of Sciences, Institute of Experimental Botany & Palacký University Šlechtitelů 27 78371 Olomouc Czech Republic