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The impact of cereal killers on food security

25 March 2022 | Story Leonie Bolleurs | Photo Charl Devenish

Prof Liezel Herselman Inuagural Lecture — At the inaugural lecture were from the left: Prof Danie Vermeulen, Dean of the Faculty of Natural and Agricultural Sciences, Prof Liezel Herselman, Dr Adré Minnaar-Ontong, Senior Lecturer in the Department of Plant Sciences and Subject Head of Plant Breeding, and Dr Molapo Qhobela, Vice-Rector: Institutional Change, Strategic Partnerships and Societal Impact.

Prof Liezel Herselman, Academic Head of the Department of Plant Sciences at the University of the Free State (UFS),) delivered her inaugural lecture on the Bloemfontein Campus this week (24 March 2022). The theme of the lecture was the ongoing battle against destructive cereal killers.

With 28 years of extensive experience as a researcher, her work focuses on marker-assisted disease resistance breeding in wheat within a South African context. When she joined the UFS in 2004, Prof Herselman decided to apply her research expertise in marker-assisted breeding to the problems faced by wheat producers in the Free State and Northern Cape. The Free State is one of the major dryland wheat production areas in South Africa, while irrigation wheat is produced along the major rivers in the Northern Cape.

Protection against fungal diseases

Concentrating specifically on Fusarium head blight (or wheat scab) and three rust diseases – leaf rust, stem rust, and stripe rust – she has done work to provide wheat plants with ‘tools’ to protect themselves against these fungal diseases.

According to Prof Herselman, there are many genes available in different wheat genotypes and related grass species that provide excellent protection against various races of these diseases. “Some of these genes provide protection or resistance from the seedling stage, while others provide resistance at the adult plant stage. We are thus aiming to combine as many of these genes as possible into a single wheat cultivar, without compromising yield and bread-making quality.”

She says the genes are combined by making crosses between resistant and susceptible cultivars or lines. Conventionally, through a time-consuming process, the incorporation of these genes is tested in the greenhouse and field by infecting plants with the disease to see which plants are resistant and which are not.

They can, however, follow the transfer of these genes to newly developed lines by applying molecular markers. Prof Herselman explains: “A molecular marker is a genomic fragment linked to the gene, which we can follow in the offspring we create from the crosses using different DNA techniques in the laboratory. This enables us to select new wheat lines that contain the highest number of resistance genes. The identified best lines are then used in further crosses and/or released as pre-breeding lines to commercial wheat breeding companies.”

Impact on food security

Her research has an impact on society by providing food security to both commercial and small-scale producers, as well as the end users of wheat (people buying bread and other wheat products). As researcher, it is also important for her to send out students to the workplace who can continue with this task in future.

Prof Herselman believes that when cultivars with fungal-disease tolerance or resistance are released and used by producers, it not only reduces the cost of spraying against diseases, but also increases yields by protecting the crop against fungal diseases. “We live in a world where the population is increasing daily, but land available for agriculture is not increasing and some areas are even lost due to urban development. Increasing yield in available production areas will thus have a positive impact on food security,” she says.

Besides contributing to the country’s food security, she takes pleasure in every aspect of her work. Although she misses the hands-on part of the work as academic head of the department and getting her hands dirty, she still enjoys managing the different research projects (from the conceptualisation phase to data analysis and publishing of results). The part she loves the most is to see the growth in her postgraduate students – from the moment they enter the laboratory for the first time until the day they walk out of the laboratory with their degrees.

“It adds purpose to my life knowing that I have made a difference in a student’s life and equipped him or her with the necessary tools to be successful in the marketplace. Being able to share your knowledge is a gift, but with that gift comes a lot of responsibility as well. I am, however, up for the challenge,” concludes Prof Herselman.

News Archive

Another boost for sport at the UFS

2005-10-13

A contract formalizing the appointment of Sports Plan (Pty) Ltd was signed by Prof Verschoor and Mr Morne du Plessis in the historic Main Building of the UFS Bloemfontein campus.

The University of the Free State (UFS) has officially appointed Sports Plan (Pty) Ltd, which has former Springbok rugby captain Morné du Plessis as managing director, to manage its Centre for Exercise and Sport Science Services (CESSS) on the Bloemfontein campus.

According to Prof Teuns Verschoor, Vice-Rector: Academic Operations, the appointment of Sports Plan (Pty) Ltd is another step in the implementation of the UFS’s wide-ranging sport strategy to improve sport facilities and elevate formerly marginalized sports such as soccer, hockey, netball, tennis etc.

Sports Plan (Pty) Ltd is the manager of the Sports Science Institute of South Africa and coordinates and manages the national basketball high-performance programme of SA Basketball, as well as the Boxing Academy on behalf of Boxing South Africa.

“It is also actively involved with the sports plans of several tertiary institutions like that of the University of Johannesburg and the University of Stellenbosch,” said Prof Verschoor.

“Sports Plan (Pty) Ltd was also appointed by the Ministry of Sport and Recreation to manage the allocation of sports codes to high-performance centres and to oversee the allocation of monies received from the National Lottery to these centres – this includes the CESSS at the UFS,” Prof Verschoor added.

In unfolding its national sports plan, the Ministry of Sport and Recreation has already identified the UFS-based CESSS as the high-performance testing centre for the national basketball teams whilst the national boxing teams are also earmarked to be trained at the UFS.

“We are glad to be associated with a company of this stature and look forward to work with them in the further development of sports at the UFS,” said Prof Verschoor.

According to Prof Verschoor, the CESSS will act as a centralised body that is responsible for the coordination and management of joint initiatives between professional service providers, research projects and KovsieSport.

“The centre will also coordinate and manage joint initiatives between various academic programmes in different academic subject fields such as sports medicine, bio kinetics, physiotherapy, dietetics, etc. ,” said Prof Verschoor.

These initiatives will help the UFS to become a centre and catalyst of sports development, to become internationally recognised in the field of exercise and sports science research and to become a centre for high quality sports performance enhancement.

Some of the objectives of the CESSS are:

To provide sports science services like to athletes, students, the general public and other stakeholders including certain national sport teams.
To provide the necessary teaching and training facilities and internship opportunities for UFS students in sports related fields of study will also be provided by the centre like human movement science.
To present skills-transfer programmes directed at the broader community like development of skills in various sporting codes.
To continue and extend the current chronic risk reversal programmes presented by the Department of Human Movement Science such as obesity management, cardiac rehabilitation and other lifestyle related conditions.

The centre was founded in 2003 and was until now managed by Dr Louis Holtzhausen, from Kovsie Health and a consultant, Dr Gary Vorster.

A contract formalizing the appointment of Sports Plan (Pty) Ltd was signed today by Prof Verschoor and Mr Morne du Plessis in the historic Main Building of the UFS Bloemfontein campus.

The manager of the centre appointed by Sports Plan (Pty) Ltd is Mr Charles Store, an alumnus of the UFS, previously employed at the Sports Science Institute in Cape Town and by the SANDF at 3 Military Hospital, Bloemfontein.

Media release
Issued by: Anton Fisher
Director: Strategic Communication
072-207-8334
12 October 2005

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