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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

New projects will enhance the infrastructure on our campuses
2011-02-04

 
Illustration:
The university's Main Gate in Nelson Mandela Avenue, as designed by The Roodt Partnership Architects.
 

A new entrance to the Main Campus, a high-performance centre, commercial gymnasium, rock-climbing wall, memorial garden for women and a botanical garden are but a few of the number of building and renovation projects that will take place at the Main Campus of the University of the Free State (UFS) in Bloemfontein. A number of projects are also being done on the Qwaqwa Campus.
On the Main Campus the entrance in Nelson Mandela Avenue is being adapted to match the university’s new corporative identity which was introduced last week. This project will be completed at the end of March 2011,
 
The creation of an environment conducive to the development of its students in the field of teaching, learning and research, as well as sports and culture is one of the main reasons why the UFS is renovating existing buildings and developing new infrastructure.
 
With the construction of a high-performance centre and commercial gymnasium, the university wants to create a work environment for its staff that will not only contribute to the cultivation of maximum work performance, but also to staff wellness. The centre with its foyer and administrative offices will furthermore consist of a health desk, university sports institute, sports sales, a spinning and aerobic centre, and dressing rooms. The total area will extend over 2114 m² and the construction will take approximately 18 months. This development will take place on the western side of the university’s Main Campus, directly opposite the Furstenburg Gate and next to the new student housing.
 
The UFS is also progressing well with other building projects which commenced last year. One of the projects is a new Education Building which is being constructed opposite the UFS Sasol Library. Upon completion this building will be used for the training of maths and science teachers in the Foundation Phase. It will include three classrooms for 100 students each and an auditorium for 225 students as well as an office block. The auditorium will also be used as a classroom. The building has been designed according to environmentally friendly principles to save water and use power effectively. It should be completed this year.
 
Planning for the construction of more student accommodation on the Main Campus as well as the Qwaqwa Campus is already well underway. On the Qwaqwa Campus, a residence with 200 beds is being constructed. This also includes a computer laboratory. According to the planning, this residence should be completed by the end of the first semester in 2011. Furthermore, four residences will be constructed on the Main Campus. These residences are in the planning phase.
 
In order to place technology within reach of Kovsie students and thereby empowering them, computer laboratories were installed at the respective residences. The computer laboratories will eventually make provision for approximately185 computers for student use. Proper security is also planned to safeguard the equipment.
 
Work to a new building for the Faculty of Health Sciences is also proceeding rapidly on the site where the vehicle pool and Hertz were previously used. This will include a lecture hall for 200 students, five venues for 100 students each, as well as offices. Students from the School for Medicine and Occupational Therapy will make use of these facilities.
 
The new building for the Faculty of Economic and Management Sciences between the Flippie Groenewoud Building and the Wynand Mouton Theatre is also coming along nicely.
 
On the university’s Qwaqwa Campus a new Education building is being constructed. This building will include a lecturing hall with 100 seats, four 50-seat classrooms, six offices, ablution facilities, a biology and science laboratory, as well as an information technology laboratory for 60 students.
 
In the meantime, existing buildings are being renovated on all the campuses. This includes, amongst others, improvements to the Architecture Building, the Biotechnology Building and the quarters for service workers on the Main Campus. Other improvements that have already been completed include the renovation of the Odeion’s foyer and the Callie Human Centre.
 
In future, students, staff and visitors to the UFS can also look forward to a rock-climbing wall at the Student Centre on the Thakaneng Bridge, a memorial park for women, residential accommodation within a sports environment, and a botanical garden.

 

Media Release
03 February 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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