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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 Rose Ball promises to be an unforgettable experience

2005-09-08

On Saturday 15 of October 2005, the Department of Paediatrics and Child Health at the University of the Free State (UFS) in collaboration with Medi-Clinic, are hosting a Rose Ball in aid of children and babies with serious diseases and special needs.

The Bloemfontein public should get ready for one of the most magnificent events ever held in the city.

The Rose Ball promises to offer an evening of glamour, elegance and beauty which will make it an unforgettable and unique event. The Department aims to make the Rose Ball an annual event to which the Bloemfontein public can look forward to with expectation.

“Excellent food and wine, a 35 man symphony orchestra and of course a magical setting awaits those who attend the Rose Ball. We will do everything possible to make guests feel special, so that they return to the Rose Ball year after year. In this way, we can ensure an annual income from this event for children and babies who are very ill and need specialised care,” said Prof. André Venter, Head of the Department of Paediatrics and Child Health.

The Department of Paediatrics and Child Health at the UFS is responsible for the tertiary care, that is highly specialised care, of around 1 000 000 children in the Free State, Northern Cape, North-West, Eastern Cape and Lesotho. Approximately 13 000 out-patients are treated at the Universitas and Pelonomi Hospitals annually. Children who suffer from cancer, heart disease, neurological disease and endocrinological and gastro-enterological conditions are treated. The Department is also responsible for children who need intensive care and children with contagious diseases. In addition, there is a large neonatal unit where prematurely born babies are treated.

The level of health care needed to treat these children and babies, necessitate highly specialised equipment and knowledge. However, it is not always possible to replace or upgrade equipment, due to the lack of much-needed funds. That is why a fund was created within the Department to satisfy the need for funds. The Rose Ball promises to eventually give a vital boost to the fund that will go a long way toward providing in the special healthcare needs of these patients.

The Rose Ball is made possible thanks to the support of Medi-Clinic.

“Medi-Clinic is honoured to be involved in this great effort and in this way take hands with the Department of Paediatrics and Child Health at the UFS. There are so many children with life-threatening diseases today and we cannot afford to be uninvolved in any effort to make life better and easier for these children. We at Medi-Clinic, as a private sector company, look forward to establishing a long-term commitment with the Department of Paediatrics and Child Health,” said Mr Sakkie van der Merwe, Hospital Manager of Bloemfontein Medi-Clinic.

Only a limited number of tables are still available for the Rose Ball. Tickets cost R500 per person or R5 000 per table of 10 people.

Those who are interested can contact Ms Ilse Olivier at 051-4012415 or Ms Adele van Aswegen at 051-4013535 for more information.

Media release
Issued by:  Lacea Loader
   Media Representative
   Tel: (051) 401-2584
   Cell: 083 645 2454
   E-mail: loaderl.stg@mail.uovs.ac.za
8 September 2005

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