Affiliation: | 1. Research Centre for Plant Growth and Development, School of Botany and Zoology, University of Natal Pietermaritzburg,Private Bag X01, Scottsville 3209, South Africa;2. Department of Pharmacy, University of the Witwatersrand, Faculty of Health Sciences, 7 York Road, Parktown 2193, South Africa;3. Pharmacognosy, Department of Medicinal Chemistry, Royal Danish School of Pharmacy, 2 Universitetsparken, 2100 Copenhagen O, Denmark |