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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

UFS Prestige Scholar shares her vision on crystallography with worldwide audience
2014-04-24

 
Dr Alice Brink
Dr Alice Brink, a Prestige Scholar and lecturer in the Department of Chemistry at the University of the Free State, was selected by UNESCO to participate, together with some 15 other young scientists from all over the world, in a round-table discussion at the Opening Ceremony of the International Year of Crystallography.

During this event, that took place in Paris, France, Dr Brink could, on stage, share her vision as one of the next generation of scientists.

“The 15 crystallographers consisted of eight young, established scientists and seven ‘young-young’ scientists who are starting their careers. We participated in a group discussion in order for the crystallographic community to better understand the challenges faced by young scientists across the globe.

“It was a great privilege to be invited to be part of this talented and diverse discussion group and to hear the challenges that are faced by young scientists from different parts of the world. It is also comforting to hear that scientific difficulties that are found in South Africa are commonly experienced in both First and Third World countries,” said Dr Brink.

“Crystallography has directly influenced the development of numerous scientific fields such as chemistry, physics, mathematics, medicine, engineering and material sciences. More inter-departmental collaboration would benefit greatly from crystallography, as this multi-faceted science provides foundation principles for applied research,” she said.

The United Nations declared 2014 as the International Year of Crystallography, and it was officially opened at the UNESCO Headquarters in Paris by the Secretary-General of the UN, Ban Ki-moon.

The ceremony was video-streamed live to more than 500 destinations all over the world.

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