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Jacqueline Meyer delivered her prestige seminar at FABI and successfully defended her PhD thesis on 8 February. The title of her presentation was: “RNA-Seq and metabolic profiling of resistant and susceptible sub-tropical maize lines reveals a role for kauralexins in resistance to grey leaf spot disease caused by Cercospora zeina”. A PhD student in the Molecular Plant-Pathogen Interactions group, Jacqueline was supervised in her research by Prof. Dave Berger, Dr Shane Murray from the University of Cape Town and Prof. Zander Myburg.

Jacqueline’s oral examination panel included Prof. Eric Schmelz from the Department of Cell and Developmental Biology at the University of California, San Diego, Dr Inge Gazendam from the Agricultural Research Council’s Vegetable and Ornamental Plants, and Prof. Marion Meyer from the Department of Plant and Soil Sciences at the University of Pretoria.

Jacqueline’s study explored the maize plant’s (Zea mays) chemical defence strategies, particularly the accumulation of kauralexins in response to attack by C. zeina. Cercospora zeina infection causes grey leaf spot and can lead to massive losses in maize crops. It is especially devastating for subsistence farmers who depend on maize for their livelihood. The project was part of the Genomics of Quantitative Disease Resistance in African Maize Varieties; a TIA-funded initiative between the University of Pretoria, the Centre for Proteomic and Genomic Research, the University of KwaZulu-Natal and Pannar Seed (Pty) Ltd.  

New Publications

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Linnakoski R, Forbes KM, Wingfield MJ, Pulkkinen P, Asiegbu FO. (2017) Testing projected climate change conditions on the Endoconidiophora polonica / Norway spruce pathosystem shows fungal strain specific effects. Frontiers in Plant Science 8:883. 10.3389/fpls.2017.00883 PDF
Crous CJ, Burgess TI, Le Roux JJ, Richardson DM, Slippers B, Wingfield MJ. (2017) Ecological disequilibrium drives insect pest and pathogen accumulation in non-native trees. AoB Plants 9:plw081. 10.1093/aobpla/plw081
Swart V, Crampton BG, Ridenour J, Bluhm BH, Olivier NA, Meyer JJM, Berger DK. (2017) Complementation of CTB7 in the maize pathogen Cercospora zeina overcomes the lack of in vitro cercosporin production. Molecular Plant-Microbe Interactions First Look Online 10.1094/MPMI-03-17-0054-R
Wingfield MJ, Slippers B, Wingfield BD, Barnes I. (2017) The unified framework for biological invasions: a forest fungal pathogen perspective. Biological Invasions 10.1007/s10530-017-1450-0
Tanui CK, Shyntum DY, Priem SL, Theron J, Moleleki LN. (2017) Influence of the ferric uptake regulator (Fur) protein on pathogenicity in Pectobacterium carotovorum subsp. brasiliense. Plos One 5(12) 10.1371/journal.pone.0177647