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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

Art on Disasters to heal communities

2014-05-27

Fadzai Nyamusamba showing interest in the work: "Working on fire". This artwork was painted and donated by Mariette Pretorius, a professional artist from Bloemfontein. This art piece will be displayed at the South African National Disaster Management Centre in Pretoria.
Photo: Supplied

The Disaster Management Training and Education Centre for Africa (DiMTEC) at our university, recently launched its Art on Disasters initiative at the Gallery on Leviseur in Bloemfontein.

Disasters have a devastating effect on societies and are accompanied by fear, uncertainties and often post-traumatic stress disorders. The creative arts have the ability to comfort survivors and those affected by tragedy. Amid disaster, art serves as a memorial, aids in the healing process and helps these communities to interpret their emotions.

This is precisely the main focus of the Art on Disasters project. It aims to develop paintings, sculptures, dramas, theatre productions, poetry and music in collaboration with artists. These productions will then be presented to communities at risk of, or affected by, disasters, to create awareness and foster healing.

Furthermore, the initiative will conduct research on art as a form of therapy and co-ordinate rehabilitation experts to assist the relevant communities. The artworks collected by the project, will be sold or auctioned to help raise funds. The proceeds will then be donated to a worthy cause as part of DiMTEC’s commitment to community service.

The project will help console and heal communities and aspire to generate greater resilience to trauma. It will also give humanitarian workers the opportunity to advocate for disaster risk reduction and offer them an opportunity for psychological debriefing after attending to affected communities.

“We will collect different categories of art related to all forms of disasters. These include paintings, photography, sculptures, poetry, music, theatre productions and short stories,” said Dr Andries Jordaan, Director of DiMTEC. “Stephanie Peters, Thomas Hart Benton, Tania Kovats and Medhi Naimi are just a few of the many artists that paint on man-made and natural disasters. They are artists that believe in art therapy as a form of self-expression, well-being and recovery,” he added.

For more information about this initiative, or to possibly contribute as an artist, please contact Olivia Kunguma from DiMTEC on +27(0)51 401 9699 or kungumao@ufs.ac.za .

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