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

Researchers explore gender-based violence at schools in Southern Africa
2014-10-17

Prof Dennis Francis
Photo: René-Jean van der Berg


Violence in schools, especially gender violence, has been a much explored and debated topic. But researchers at the University of the Free State (UFS) are now also exploring the link between gender, diversity and violence in schools in Southern Africa.

This study – a first of its kind – received funding from the United Nations Educational, Scientific and Cultural Organisation (UNESCO) and will investigate how the perception of ‘different’ is a contributing factor to violence in schools.

This UNESCO-funded study, in collaboration with Hivos, GALA and the Government of the Netherlands, will involve schools in Botswana, Lesotho, Namibia and Swaziland.

Prof Dennis Francis, UFS Dean of Education and principal researcher in this study, says children and youth around the world are exposed to violence in and around educational settings. “This does not only undermine a child’s rights to quality education, but also the capacity of the education sector to train future citizens who will respect each other regardless of differences.”

Prof Francis says although girls are the most vulnerable targets of GBV, boys can also be targets, as evidence reveals that many children and youths who are perceived as different in terms of gender, are often victims of violence in school.

“Education is the most significant means of fostering social inclusion, promoting individual rights and realising the full potential of all young people, including those perceived as different. This project is aimed at assisting government, policy makers and professionals in the education sector, as well as civil society organisations and other key stakeholders in Southern Africa to create educational policies and practices that promote safe schools for all youths.”


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