Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
09 September 2025 | Story Martinette Brits | Photo Stephen Collett
Prof Botma Visser
Prof Botma Visser delivered his inaugural lecture at the University of the Free State, highlighting nearly two decades of research on wheat rust and global food security.

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

Lecture focuses on how Marikana widows embody the transformative power of art
2015-08-11

Makopane Thelejane

"When I got the news of my husband is dead, I put my hands above my head, as you see me in this picture. I could not bear the ache in my heart." - Makopane Thelejane

A woman looks down on a canvas covered in thick layers of red, dark shadows falling across her face. A brief moment that captures the silently-devastating aftermath of the Marikana massacre that bled into the lives of 34 widows.

It is this silent trauma that was at the centre of the last instalment of the Vice-Chancellor’s Lecture Series for 2015. “These stories of the Marikana widows are important. It is these stories of silence that live behind the spectacular scenes of the violence,” Prof Pumla Gobodo-Madikizela, Senior Research Professor in Trauma, Forgiveness, and Reconciliation Studies at the University of the Free State (UFS) said at the event.

Panel
The lecture, which took place on Monday 27 July 2015 on the Bloemfontein Campus, took the form of a panel discussing the theme of “Speaking wounds: voices of Marikana widows through art and narrative”. The panel consisted of members from the Khulumani Support Group, including Dr Marjorie Jobson (National Director) and Judy Seidman (Sociologist and Graphic Artist), as well as Nomfundo Walaza, former CEO of the Desmond Tutu Peace Centre.

Betty Lomasontlo Gadlela

"Then this dark time came, a dark cloud over me. It made me to have an aching heart, which took me to hospital, from losing my loved one, my husband, in such a terrible manner. " - Betty Lomasontlo Gadlela

Trauma made visible
In a project initiated by Khulumani, the Marikana widows were encouraged to share their trauma through painting body maps – in which the widows depicted their own bodies immersed in their trauma – and narrating their personal stories. Throughout the workshops, the focus always remained on the women. As Siedman put it, “the power of this process is rooted in the participants. The statements of what the participants experienced is what’s important.”

Initially silenced and isolated, this group of women has now moved “into a space where they have become connected to each, and stand up for each other in the most powerful ways,” Dr Jobson said. “Our work is conceptualised in terms of giving visibility and voice to the people who know what it takes to change this country; to change this struggle.”

The transformative power of art and narrative
During her response, Walaza pointed out “how art and narrative can transform traumatic memory and become integrated in the survivors’ life story.” This gives individuals the opportunity, she said, “to step into a space of mutual listening and dialoguing in which people bond together.”

Co-hosted by Prof Gobodo-Madikizela and the UFS Institute for Reconciliation and Social Justice, the lecture series forms part of a five-year research project funded by the Andrew W. Mellon Foundation.

 

 

 

 

 

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