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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

First Global Leadership Summit brings partner universities to our university

2012-05-17

The University of the Free State (UFS) is gearing up for the Global Leadership Summit when students from universities all over the world will visit the UFS. The summit will take place from Sunday 8 July to Friday 20 July 2012. About 180 staff and students from universities in the United States, Asia and Europe are expected to visit the UFS during these two weeks and eminent scholars and politicians have already confirmed their participation. Among them are Archbishop Emeritus Desmond Tutu, Dr Tim Murithi, Prof. Mark Solms, Fulbright Scholars who were previously tenured at the university, and a number of ambassadors.

Prof. Aldo Stroebel, Director: International Academic Programmes, Office of the Vice-Chancellor, says that our university has increasingly embedded internationalisation in its strategic priorities. The Leadership for Change Programme, jointly hosted by International Affairs and Student Affairs, is a significant step forward in this context. This innovative and unique programme, initiated in 2010, serves as a leadership development programme focused on first-year students. It aims to build layers of new thinking and engagement among students from diverse backgrounds. As part of a year-long engagement, each student spends a period abroad where there is intense exposure to the academic, social, cultural and residential lives of students in other countries. A formal mentor development programme for staff runs concurrently with the initiative.

In the 2010 programme, 71 students in various cohorts were placed at nine universities in the USA. Following on the success of this initiative, in 2011, 150 students were hosted at partner universities in the USA, Europe and Japan. The impact of cross-cultural and cross-border experiences on changing and enriching the participants’ minds and attitudes has been manifested in a wide variety of ways at both the UFS and the partner institutions.

The Global Leadership Summit, with the theme, “Transcending Boundaries of Global Change Leadership”, is a reciprocal programme of the Leadership for Change initiative. It will focus on international engagements in addressing salient issues around change leadership, diversity and racial reconciliation in Higher Education through critical dialogues between staff and students from all over the world.

The programme will be continued during 2013 when 150 students will again be selected for participation and placement abroad.

Media Release
17 May 2012
Issued by: Lacea Loader
Director: Strategic Communication
Tel: +27(0)51 401 2584
Cell: +27(0)83 645 2454
E-mail: news@ufs.ac.za

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