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06 December 2018 | Story Leonie Bolleurs | Photo Barend Nagel
Marcelle Vermeulen
Marcele Vermeulen, a graduate from the Department of Plant Sciences, explores possible threats to crop production; contributing to food security in South Africa.
Global food security is currently threatened both by climate change and the low diversity of crops relied on by humankind to feed a growing world population. Marcele Vermeulen, a graduate in the Department of Plant Sciences who will receive her PhD at the December graduation ceremonies at the University of the Free State (UFS), is part of a team that is working hard to add to the diversity of staple foods in South Africa.

In the drive to focus on alternative crops, Marcele is researching the crop, Amaranthus cruentus, (grain amaranth). It is more tolerant to environmental stress for large-scale production, thereby also diversifying staple crops.

Relatively new development

“Amaranthus cruentus is an excellent candidate due to its high nutritional value and tolerance to drought and high temperatures. It can be mixed with conventional maize meal, to increase the protein intake of its consumers,” said Marcele.

The production of A. cruentus as a grain crop in South Africa is a relatively new development.

In her research, exploring the possible threats to crop production and paying particular attention to dominant plant pathogens in the Amaranthus cruentus, Marcele found a correlation between fungal pathogens and insect pests. 

Insect pests can influence plant diseases

Although reports on fungal pathogens and pests specific to A. cruentus are limited to and information for South Africa is limited to this study, there is a possibility that by controlling insect pests such as weevils, one might also be able to control fungal pathogens of Amaranthus cruentus.

Marcele believes that control of weevil pests should thus be the focus of future pest and pathogen management strategies and breeding programmes in A. cruentus.  

“Knowledge gained in my thesis will hopefully aid in the development of future cultivation practices, integrated pest/pathogen management programmes, as well as for the registration of crop protection products for A. cruentus,” Marcele added.

Research Contributes to Food Security from University of the Free State on Vimeo.

News Archive

Childhood passion becomes a successful career
2016-12-19

Description: Dr Thapelo Makae Tags: Dr Thapelo Makae 

Dr Makae took up his studies at the South Campus
of the UFS, and now serves as a community vet in Tshwane.
Photo: Anja Aucamp


Dr Thapelo Makae’s youthful passion has been a driving force in his chosen career. He says: “Like any veterinarian, my love for animals started from childhood. Growing up, I always asked myself why animals didn’t have doctors like we kids did, when our pets fell ill or died.” While veterinary services were unknown where he was raised in the Phelindaba location in Mangaung, Bloemfontein, Dr Makae started doing his own research as early as Standard 1 (Grade 3). He affirms, “I’ve always wanted to help these creatures that, it seemed, no one could help.”

Having started his academic journey on the South Campus in the CPP (as the University Preparation Programme was then known), Dr Makae obtained an undergraduate degree in Agriculture, later completing an honours degree in Agriculture. “It was at this stage,” he says, “that I was recruited by Prof Johan Greyling and the late Dr Luis Schwalbach. With their support, I completed my MSc Agric, besides having the opportunity to be a junior lecturer in Animal Physiology. Dr Schwalbach was my supervisor, my mentor, and a veterinarian himself, and I worked very closely with him. He encouraged me to pursue my passion and the dream to go ahead and study Veterinary Medicine.”

Realising that dream, Dr Makae is now employed at the Gauteng Department of Agriculture and Rural Development as a community veterinarian. Among his many responsibilities, he is charged with serving the communities of the Tshwane Metro, where he visits farmers, assisting them with health and vaccination plans, and providing advice to help them develop their skills.

Dr Makae also seeks opportunities to pass on his dream. “What I am most passionate about is going to schools and giving talks to schoolchildren, especially those from previously disadvantaged communities, who might not know much about Veterinary Medicine,” he says.

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