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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

A brand-new image for historic University of the Free State

2011-01-19

Prof. Jonathan Jansen, Vice-Chancellor and Rector, and Prof. Teuns Verschoor, Vice-Rector of Institutional Affairs, during the media conference to launch the new brand.
- Photo: Hannes Pieterse

A new chapter was written in the history of the University of the Free State (UFS) on Thursday, 27 January 2011 when it launched its revitalised brand image.

The brand evolution has resulted in the adoption of two primary brands to engage with its stakeholders – an evolved academic crest and a new marketing brand for the institution’s offerings and services.

The university, which recently won the World Universities’ Forum award for academic excellence and institutional transformation, was founded in 1904 as a dynamic learning environment where academic excellence and the development of leadership qualities are long-standing traditions. These values are the backbone of the university and the foundation of the new brand as it seeks to adapt to the changing needs of society, without sacrificing its rich history and heritage.

The process of revitalising and creating a renewed image of the UFS, spearheaded by the university’s inspirational leader, Prof. Jonathan Jansen, started in February 2010 and involved a comprehensive and consultative process to understand the deep insights that underpin the fabric of the institution among its key stakeholders.

“We engaged in one of the most expansive and intensive process of consultations with staff, alumni, senate, council and other stakeholders to determine how and in what ways our brand could signal a more inclusive and forward-looking vision that captured the spirit and essence of the new country and a transforming university,” says Prof. Jansen.

The new brand is anchored in the university’s renewed motto “In Veritate Sapientiae Lux” (In Truth is the Light of Wisdom), which has been evolved to embrace the diversity of the community the university without losing its essence. As Judge Ian van der Merwe, Chairperson of the UFS Councilnoted, “the motto retains concepts with which not only Christians can identify, but which also accommodate all the different viewpoints of the UFS’s diverse students and staff. Hereby a feeling of unity and belonging is promoted.”

The new brand identity was developed by the country’s foremost academic branding authority, the Brand Leadership Group. “We worked with the university to develop a brand that reflects an inclusive, forward-thinking truly South African university in tune with its changing environment which embraces its past, present and signals the future,” says Thebe Ikalafeng, founder of Brand Leadership Group.

The new brand has found resonance with the various university stakeholders. “The end product is excellent,” commented Mr Naudé de Klerk, Chairperson of Kovsie Alumni. “It represents a history of hope, excellence, innovation and transformation. Above all, it represents a leap of faith, which extends from a humble beginning in 1904 to the strong and vital academic institution it is today.”

Finally, where it matters, the new brand also gets the students’ vote. “Our new brand illustrates and communicates to the rest of the world the message that we as the University of the Free State refuse to be tied down to the failures of the past, but instead confidently sprint forward to the successes of tomorrow,” says Modieyi Motholo, Chairperson of the university’s Interim Student Committee.

Messages

Media Release
27 January 2011
Issued by: Lacea Loader
Director: Strategic Communication (actg)
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: news@ufs.ac.za

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