Georgina Arthur (Mangosuthu University of Technology, Jacobs, Durban, KwaZulu-Natal, South Africa.), Adeyemi Aremu (Research Centre for Plant Growth and Development, School of Life Sciences, University of KwaZulu-Natal Pietermaritzburg, Scottsville, South Africa.), Manoj Kulkarni (Research Centre for Plant Growth and Development, School of Life Sciences, University of KwaZulu-Natal Pietermaritzburg, Scottsville, South Africa.), Wendy Stirk (Research Centre for Plant Growth and Development, School of Life Sciences, University of KwaZulu-Natal Pietermaritzburg, Scottsville, South Africa.), Theophilus Davies (Mangosuthu University of Technology, Jacobs, Durban, KwaZulu-Natal, South Africa.), Johannes van Staden (Research Centre for Plant Growth and Development, School of Life Sciences, University of KwaZulu-Natal Pietermaritzburg, Scottsville, South Africa.)