Institute of Bioorganic Chemistry PAS, Noskowskiego Str. 12, 61-704 Poznań, POLAND; phone: +48 61 8528503 ext. 133, 134, e-mail: twardows(at)ibch.poznan.pl

or

Department of Plant Genetics Breeding and Biotechnology, Warsaw University of Life Sciences - SGGW, Nowoursynowska Str. 159, 02-776 Warsaw, POLAND; phone: +48 22 5932178, e-mail: marcin_filipecki(at)sggw.pl