Latest News Archive

Please select Category, Year, and then Month to display items

Prof Botma Visser takes on rust diseases threatening South Africa’s wheat

09 September 2025 | Story Martinette Brits | Photo Stephen Collett

Safeguarding one of the world’s most vital staple foods was at the heart of the inaugural lecture delivered by Prof Botma Visser, Professor in the Department of Plant Sciences at the University of the Free State (UFS), on Wednesday 3 September 2025. Prof Visser shared insights from nearly two decades of research into wheat rust – a devastating crop disease that threatens both South Africa’s harvests and global food security.

“Wheat production in South Africa is threatened by three fungal pathogens that cause rust disease on the crop. Understanding the factors that contribute to virulence on locally grown cultivars is crucial to ensure continued wheat production,” said Prof Visser.

The fight against evolving wheat rusts

For the past 17 years, Prof Visser’s research has focused on the genetic structure of rust populations and the risks they pose to food security. His work has shown that these populations are dynamic and constantly changing due to genetic mutations within existing races, as well as the introduction of new races into South Africa.

“Computer modelling showed that rust can spread over vast distances by prevailing winds. During the 20th Century, at least four Southern African stem rust races managed to move across the Indian Ocean from Southern Africa to Australia. South Africa, in turn, received multiple new races from mid-Africa across Zambia and Zimbabwe, without any means of stopping these introductions,” he explained.

To respond to this challenge, his team recently implemented MARPLE (Mobile And Real-time Plant disEase) diagnostics using fourth-generation nanopore sequencing technology. This approach allows the rapid characterisation of fungal isolates, specifically targeting genes linked to fungicide resistance and virulence.

“This work,” Prof Visser noted, “is part of an effort to safeguard global wheat production.”

His research is a collaborative effort with Prof Willem Boshoff (Department of Plant Sciences, UFS) and Dr Tarekegn Terefe (Agricultural Research Council – Small Grain, Bethlehem). Together, their work has positioned the UFS as an internationally recognised centre of excellence in wheat rust research.

About Prof Botma Visser

Prof Botma Visser obtained his BSc in Botany and Microbiology (1988), BSc Honours in Microbiology (1989), and MSc in Botany (1993) at the University of the Free State, where he also completed his PhD in Botany in 2004.

His career spans more than 18 years of research into wheat rust pathogens, combining annual surveys, race pathotyping, molecular genetics, and cutting-edge sequencing technologies. His expertise has not only advanced understanding of rust population dynamics in South Africa but also contributed to global collaborative studies on crop disease.

News Archive

UFS invests in community journalists

2013-12-09

The first group of journalists who completed the Department of Communication Science’s short-learning programme for community journalists. The course was developed by Mrs Willemien Marais (far left) and Mrs Margaret Linström (far right). In front in the middle are Prof Lucius Botes, Dean of the Faculty of the Humanities, and Mr Lumko Mtimde, CEO of the Media Development and Diversity Agency, the sponsor of the programme. Fifth from right is Ms Manana Monareng Wa Stone, Programme Manager of the MDDA.

An investment in our people, our region and our democracy. This is the value of the Department of Communication Science’s short-learning programme for community journalists.

The first 20 community journalists from radio stations and newspapers in the Free State and Northern Cape received their certificates recently after successfully completing the course Basic Journalism Skills for Community Media.

This credit-bearing short-learning programme is fully sponsored by the Media Development and Diversity Agency (MDDA), a statutory body with the aim of developing and promoting community media.

The University of the Free State (UFS) is the first university in South Africa that presents a course of this nature. “It is also the first large-scale formal training of community journalists in the Free State and Northern Cape,” says Mrs Margaret Linström, journalism lecturer in the Department of Communication Science. She developed the course together with another journalism lecturer in the Department, Mrs Willemien Marais. “What distinguishes our programme for similar programmes is the element of mentoring,” explains Marais. Students attend a week-long training session on the Bloemfontein Campus of the UFS. The lecturers then visit all the participating newsrooms to provide further training in terms of the unique challenges of their area. “During the second semester we’ve travelled more than 3000 km to visit radio stations and newspapers as far afield as Springbok and Phuthaditjhaba,” says Linström.

During the certificate ceremony the CEO of the MDDA, Mr Lumko Mtimde, said this partnership with the UFS has the potential to make a tangible difference in communities. “Combined community media reaches the largest target audience in the country. Against this background the importance of training community journalists becomes very clear,” says Mtimde.

The role of community journalists differ from that of journalists who work for state or commercial media. Yet most of these community journalists fall outside the network of formal training, mostly due to a lack of resources and access to training.

“This course has changed my life. I came back as a newborn baby for whom everything is new!” said Mr Setona Selisa from Naledi FM in Senekal. Selisa and his colleague, Mr Teboho Mabuya, received the award for the best participants of the 2013 course.

Back

Economic and Management Sciences

Education

Health Sciences

The Humanities

Law

Natural and Agricultural Sciences

Theology and Religion

Open Distance Learning

Business School

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept