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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

Interpreting implemented at UFS residences

2007-10-12

The University of the Free State (UFS) has begun to implement interpreting services at student residence meetings on the Main Campus in Bloemfontein, as part of the management of diversity and the racial integration of its residences.

As a pilot project, the interpreting services are being offered since the third term at Emily Hobhouse and Roosmaryn ladies residences, where a significant racial diversity already is present. From next year this service will be extended to all the student residences on the Main Campus.

The interpreting project is being managed by the Department of Afro-asiatic Studies, Sign Language and Language Practice at the UFS.

“Students in training at the Department of Afro-asiatic Studies, Sign Language and Language Practice and senior interpreters from the UFS are currently interpreting during residence meetings,” said Prof. Jackie Naudé, Departmental Chairperson of the UFS’s Department of Afro-asiatic Studies, Sign Language and Language Practice.

“Students in these residences are given the opportunity to be trained to interpret during their residence meetings. Four students from each hostel are being trained as interpreters,” said Prof. Naudé.

According to Prof. Naudé both residences have meetings that take place on a Monday evening at 22:00. Interpreting is also provided at the first-year students’ meetings at Emily Hobhouse on Tuesday evenings.

The interpreters experience the interpreting at the residences as positively and they experience that students often do utilise this service. At Roosmaryn 16-18 students are utilising the interpreting service, while at Emily Hobhouse approximately 18 students are utilising the service.

“The interpreting service definitely contributes to the enhancement of communication during residence meetings. Students can exactly follow what is happening during the meetings. In the past a residences like Emily Hobhouse tried to repeat everything in English, which extended the meetings,” Prof. Naudé said.

With the envisaged extension of interpreting services in hostel meetings to all the hostels on the Main Campus in Bloemfontein, there is a need for interpreters as these meetings will take place simultaneously. Through this initiative, exiting new opportunities are created for aspiring interpreters. The training takes place under leadership of Prof. Annelie Lotriet who holds the ATKV Chair in Interpreting in the department.

Aspiring candidates can contact Mr Cobus Snyman, Manager of the UFS’s interpreting projects at 051 401 9005 in connection with the selection criteria for interpreters.

Media Release
Issued by: Lacea Loader
Assistant Director: Media Liaison
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: loaderl.stg@ufs.ac.za
14 October 2007

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