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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 presents unique rally

2005-06-07

On Friday 10 June 2005, the University of the Free State (UFS) will present the Kovsie version of the Amazing Race in Bloemfontein.

The Amazing Rainbow Rally will be held in aid of children and babies with serious diseases in the Department of Pediatrics and Child Health in the Faculty of Health Sciences.

By raising the necessary funds, equipment can be acquired to meet the unique health care needs of these special patients. It will also enable the UFS to maintain the high standards of education, training and research in this field.

The Amazing Rainbow Rally will give some residents of Bloemfontein an opportunity to test their knowledge of the city, as well as their time management skills, communication skills, team work and even their relationships!

About 12 corporate teams from among others Vodacom, Eskom, Medi-Clinic, Mimosa Mall and Nedbank and four university teams must follow a specific route with various checkpoints by car. Here they will have to complete activities or solve clues before receiving their clue to the next checkpoint. Teams will be traveling with cars branded with the logo of the company they represent.

The rally will start at 09:00 at the Rooiplein of the UFS and will again end on the campus where they will complete the last task. The first team to complete this task is the winner of Bloemfontein’s first Amazing Rainbow Rally.

OFM’s breakfast team will do live crossings on the day to reveal how teams are doing.

The Department of Pediatrics and Child Health at the UFS serves children with special needs, in other words children who need intensive care, or who suffer from cancer, heart disease, neurological diseases and conditions, endocrinological diseases or gastro-enterological conditions.

The Department provides secondary health care to more than 250 000 children in the southern parts of the Free State, but is responsible for the tertiary care of about a million children in the Free State and Northern Cape, as well as some parts of the North-West province, the Eastern Cape and Lesotho. The intensive care units at Universitas and Pelonomi Hospitals serve approximately 1 300 neonatal and 350 intensive care patients annually. The pediatric cardiology unit admits almost 300 high care heart patients per year. Approximately 13 000 out-patients visit these two hospitals every year.

MEDIA RELEASE

Issued by:  Lacea Loader
   Media Representative
   Tel: (051) 401-2584
   Cell: 083 645 2454
   E-mail: loaderl.stg@mail.uovs.ac.za

7 June 2005

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