1. Department
of Plant Sciences, University of Saskatchewan, 51 Campus Drive, Saskatoon, Saskatchewan S7N 5A8, Canada
2. Prairie Tide Chemicals Inc., 102 Melville Street, Saskatoon, Saskatchewan S7J 0R1, Canada
3. Botanical Alternatives Inc., 176,
8B-3110 Eighth Street E, Saskatoon, Saskatchewan S7H 0W2, Canada
4. Division
of Chemistry and Structural Biology, Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072, Australia