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Revolutionising wheat: Developing cultivars that maintain their quality in heat and drought

28 April 2023 | Story Leonie Bolleurs | Photo Supplied

UFS PhD student and food scientist Schae-Lee Olckers’ research could contribute to a stable supply of good quality wheat and bread, even in the face of climate change.

Follow your passion in order to find your purpose. This is the mantra of food scientist and University of the Free State (UFS) PhD student Schae-Lee Olckers, whose research is set to improve wheat quality by identifying which types of wheat are better able to tolerate stress, and which proteins are most important for producing high-quality bread.

“By grasping this, it is possible to ensure that we continue to have a stable supply of good quality wheat and bread, even in the face of climate change,” says Olckers, who believes wheat is one of the most important food grains in the human diet, and one of the most important staple cereal crops in the world.

Her PhD study, ‘The influence of abiotic stress on gluten protein and baking quality in bread wheat’, under the supervision of Dr Angie van Biljon and Prof Maryke Labuschagne in the Department of Plant Sciences, and Prof Garry Osthoff in the Department of Microbiology and Biochemistry, is investigating how different levels of heat and drought stress – mostly due to climate change – affect the gluten protein composition of high-yield bread wheat.

Olckers is a food scientist at StartWell Foods (Pty) Ltd, a non-profit organisation that produces high-quality extrusion products for feeding schemes around the country. The products help to eliminate stunted growth among children.

Improving wheat breeding programmes

This research could help us find ways to adapt to climate change and continue to produce high-quality wheat and bread for people around the world. – Schae-Lee Olckers

Her research focuses on examining different types of wheat and investigating how proteins are affected by stressors like heat and drought, to understand how these stressors impact the quality of bread. She uses new proteomic methods to look at the different proteins in the wheat flour, to gain a better appreciation of how gluten proteins react to stress.

In this study Olckers is able to see how the proteins change in the various wheat cultivars, helping us to understand how the different types of wheat perform in baking, and how the proteins affect the final product.

She collaborates with the International Maize and Wheat Improvement Center (CIMMYT) in Mexico, that releases new wheat cultivars for developing countries. Their aim is to develop wheat cultivars that maintain their quality in different environments. To investigate the performance and characteristics of the seeds, both in the field and in the laboratory, CIMMYT did the field trials, quality assessment, and supplied the seeds for high-performance liquid chromatography (HPLC) and proteomics analysis.

Finding ways to adapt to climate change

She believes that understanding how these stressors impact the production of bread-baking quality in wheat will help scientists gain important insights into how climate change affects our food supply.

“Taking into consideration the current and projected intensifying heat and water deficit stresses, it is crucial to improve the understanding of these phenomena in order to implement new breeding strategies for sustainable wheat quality. This research could help us find ways to adapt to climate change and continue to produce high-quality wheat and bread for people around the world,” Olckers says.

News Archive

UFS hosts first International Congress on Calvin Research in Africa

2010-08-31

Present at the Calvin Research Conference were, from the left: Dr Frank Ewerszumrode (OP), Faculty of Catholic Theology at the University of Mainz in Mainz, Germany; Prof. Dr Herman Selderhuis, President of the International Congress on Calvin Research; Prof. Dolf Britz, Director of the Jonathan Edwards Centre Africa at the UFS; and Ntabanyane Tseuoa, Masters student in the Jonathan Edwards Centre at the UFS.
Photo: Leonie Bolleurs

The first International Congress on Calvin Research in Africa was this week presented on the Main Campus of the University of the Free State (UFS) in Bloemfontein. This was the tenth Calvin Research Conference presented. The conference is presented every four years.

The theme of the congress was: Reconciliation in the Theology of Calvin. Presentations were made about, amongst others, Calvin’s viewpoint regarding slavery and social justice. There was also a discussion about the extraordinary interest to record the original Calvin texts in databases and to make it available to researchers worldwide.

According to Prof. Dolf Britz, Director of the Jonathan Edwards Centre at the UFS, the objective of the congress was to study original Calvin sources critically. “An important part of the congress’ work is to publish an important part of Calvin’s work in a comprehensive text critical edition. This process is already well advanced and includes a number of unknown texts,” said Prof. Britz.

With its research on Calvin, the UFS emphasises the study of original theological sources. “This approach makes the Faculty of Theology part of the UFS’s strategy towards internationalisation. This is also one of the reasons why the UFS was selected by Yale University in America as partner in the recent establishment of the Jonathan Edwards Centre Africa,” said Prof. Britz, whose brainchild it was to also include young upcoming researchers with the study of original sources and classical languages such as Latin.

The congress was attended by researchers and academics from across the world. Twenty young, emerging researchers formed part of this group that was invited by the UFS. According to Prof. Britz, these young researchers are the top achievers at their respective universities, such as the North-West University, Stellenbosch University, Mukanyo Theological College in the Pretoria area and the UFS.

At this event, attended by more than 70 world-renowned Calvin scholars from countries like, amongst others, Taiwan, Japan, South Korea, Finland, Switzerland, France, The Netherlands, America, Germany and Hungary; UFS academics like Prof. Eric de Boer, Extraordinary Professor in Classical and Reformed Theology and students like Rev. Ntabanyane Tseuoa from Lesotho, read and presented papers as well.

According to Prof. Britz this congress was a very good opportunity to introduce the UFS to the rest of the world.

Media Release
Issued by: Mangaliso Radebe
Assistant Director: Media Liaison
Tel: 051 401 2828
Cell: 078 460 3320
E-mail: radebemt@ufs.ac.za
31 August 2010

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