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 receives record number of applications

2011-12-31

The University of the Free State (UFS) is looking forward to the start of the new academic year in January 2012, when thousands of new students will be joining the Kovsie family.

The UFS received almost 13 000 applications for studies in 2012. This is an increase of about 80% compared to the total number of applications received in 2010 for studies in 2011.

This increase is partly attributed to the university’s new method in approaching prospective students and the marketing initiatives followed during 2011. These included visits to various schools in the country by the Vice-Chancellor and Rector, Prof. Jonathan Jansen.

“This shows that the UFS is becoming a preferred place of study. Unfortunately, we can only take in about 4 000 first-years from these applications. We will, of course, choose the best and most diverse class of students,” says Prof. Jansen.

The university’s marketing initiatives will be intensified next year where students will take part as ambassadors in the university’s student recruitment campaigns for 2013.

Mr.Rudi Buys, The Dean of Student Affairs at the UFS, says Prof. Jansen’s visit to various schools in the country was very successful. This will be continued in 2012 and student leaders from residences, associations as well as the Student Representative Council will accompany him on these visits during the course of the year.

“These learners, just like our students, are part of a new generation of new democratic South Africans. Our students are excellent examples of youth leadership in the country and we are very excited about all our initiatives,” Mr Buys said.

The UFS is aware of the fact that learners will only receive their final Grade 12 results in January 2012. Final admission will therefore only be granted upon the submission of a certified copy of the matriculation results. Fax these results to 086 586 8947 or e-mail to applications@ufs.ac.za as soon as it is available.

Important dates for Bloemfontein students

Friday and Saturday 13 & 14 January 2012: Welcoming of new first-years
Sunday 15 January: Gateway College life programme (Bloemfontein edition) begins)
Monday 16 January 2012: Registration starts

Important dates for Qwaqwa students

Thursday 12 January 2012: Arrival of first-years
Friday 13 January 2012: Gateway College Life programme (Qwaqwa edition) begins.
Monday 16 January 2012: Registration starts

For more information, Bloemfontein students can contact Student Affairs at 051 401 9102 or send an e-mail to Cornelia Faasen at faasenc@ufs.ac.za . Qwaqwa students can contact Dulcie Malimabe at 058 718 5018 or send an e-mail to malimabedp@qwa.ufs.ac.za

Media Release
Issued by: Lacea Loader
Director: Strategic Communication
Telephone: +27 (0) 51 401 2584
+27 (0) 83 645 2454
E-mail: news@ufs.ac.za
Fax: +27 (0) 51 444 6393
Web: www.ufs.ac.za

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