Primary Supervisor
Lecturer
I am a lecturer in the Department of Biochemistry, Genetics, and Microbiology at the University of Pretoria, specializing in the molecular biology of plant pathogenic fungi. My research employs genomics and molecular tools to investigate the fundamental biology of these organisms, particularly those affecting South Africa’s commercial forestry and agricultural sectors. The goal of my work is to enhance our understanding of these pathogens within the South African context while addressing questions of global importance.
Sexual Reproduction in the Ceratocystidaceae
Building upon my postdoctoral work, I am engaged in an ongoing study of the mating systems within the Ceratocystidaceae family. This research aims to elucidate the evolutionary history of sexual reproduction in these fungi by examining their mating-type loci and pheromone/receptor systems. The genomic data generated not only advance our understanding of their reproductive strategies but also provide valuable resources that underpin various studies on the biology and pathogenicity of Ceratocystidaceae species.
Grain Research Project at FABI
As a member of the Grain Research Programme (GRP) at the Forestry and Agricultural Biotechnology Institute (FABI), I contribute to research supporting South Africa’s agricultural sector. My focus is on Sclerotinia sclerotiorum, a multihost pathogen of significant economic importance. Despite the extensive global literature on this fungus, its behavior and impact within Southern Africa remain underexplored. Through genomic and molecular studies, I aim to improve our understanding of S. sclerotiorum in the region, thereby informing more effective disease management strategies.
Expanding Genomics Approaches to Additional Plant Pathogens
In addition to my work on the Ceratocystidaceae and Sclerotinia sclerotiorum, I have broadened my research to include other economically important plant pathogenic fungi. By applying similar genomic and molecular biology techniques, I have contributed to studies that provide draft genome sequences and preliminary analyses for several economically important species. This expanded approach not only deepens our understanding of the genetic basis of fungal pathogenicity but also supports the development of targeted strategies to mitigate the impact of these pathogens on both forestry and agricultural systems.
Thomas C, Wilken PM, Coetzee MPA, Visagie CM. (2025) Advancing the taxonomy of Sclerotinia (Helotiales, Sclerotiniaceae): a review and recommendations for an important plant-pathogenic genus. IMA Fungus 10.3897/imafungus.17.175737
Wilson A, van Dijk A, Marx B, du Plessis D, Terblanche G, Bornman S, Wilken PM, Duong TA, De Fine Licht HH, Wingfield BD. (2025) Extracting Protoplasts from Filamentous Fungi Using Extralyse, An Enzyme Used in the Wine Industry. Current Protocols 10.1002/cpz1.70122
Mapfumo P, Archer E, Swanevelder ZH, Wilken M, Creux N, Read DA. (2025) Plant Pathology. Genomic Characterisation of Bidens mottle virus in South Africa and an Assessment of the Impact on Helianthus annuus (Sunflower) in an Open Field Setting 10.1111/ppa.14089
Dankie VN, Steenkamp ET, De Vos L, Swalarsk-Parry BS, Dewing C, Fru F, Wilken PM, Mchunu NP, Wingfield BD, Wingfield MJ, van der Nest MA. (2025) Growth, pathogenicity and sexual fertility of the African tree pathogen Ceratocystis albifundus. Journal of Plant Pathology 10.1007/s42161-024-01634-y
van Heerden A, Pham NQ, Wingfield BD, Wingfield MJ, Wilken PM. (2024) Six type-I PKS classes and highly conserved melanin and elsinochrome gene clusters found in diverse Elsinoë species. BMC Genomics 10.1186/s12864-024-10920-z
Bornman S, Thomas C, Ntladi S, Wilken PM. (2024) Sclerotinia sclerotiorum is the causal agent of Sclerotinia stem rot on peanut (groundnut) in South Africa. Australasian Plant Disease Notes 10.1007/s13314-024-00537-2
van Heerden A, Pham NQ, Wingfield BD, Wingfield MJ, Muro Abad JI, Durán A, Wilken PM. (2024) LAMP assay to detect Elsinoë necatrix; an important Eucalyptus shoot and leaf pathogen. Plant Disease 10.1094/PDIS-01-24-0086-RE
Mapfumo P, Buthelezi S, Archer E, Swanevelder DZH, Wilken PM, Creux N. (2024) In-field climatic factors driving Sclerotinia head rot progression across different sunflower planting dates. Plant Pathology 10.1111/ppa.13873
Wilken PM, Lane FA, Steenkamp ET, Wingfield MJ, Wingfield BD. (2023) Unidirectional mating-type switching is underpinned by a conserved MAT1 locus architecture. Fungal genetics and Biology 10.1016/j.fgb.2023.103859
Avontuur JR, Wilken PM, Palmer M, Coetzee MPA, Stępkowski T, Venter SN, Steenkamp ET. (2023) Complex evolutionary history of photosynthesis in Bradyrhizobium. Microbial Genomics 10.1099/mgen.0.001105
Co-Supervisor