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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

UFS takes lead in improving quality of training in economics in schools
2006-06-20

The fourth international workshop for trainers in the National Council on Economic Education’s (NCEE) outreach programme for Africa, Latin America, Asia and the Middle East will be presented in Bloemfontein from 18-24 June 2006.

 “Because of the rapid success we achieved in the Free State with similar workshops in Economics education that were presented by the NCEE the past year, we have now invited representatives from education departments and universities of five other provinces to attend the international workshop for trainers,” said Prof Klopper Oosthuizen, lecturer at the University of the Free State’s (UFS) Department of Agricultural Economics and initiator of the cooperative agreement with the NCEE.

 The UFS and the Free State Department of Education are the NCEE’s first partners in Africa who received this training.  “The attendance of the five provinces and universities is the first step in the extension of the programme to the rest of the country,” said Prof Oosthuizen. 

 The NCEE is based in the United States of America (USA) and the workshop forms part of the council’s effort to improve the quality of the training of Economics teachers and lecturers across the world. 

 “South Africa is urgently in need of efforts to improve the integration of black people into the market economy.  An understanding of how markets work is one of the pillars of democracy.  Equipping young people with economic understanding and skills will help empower them for responsible roles as individuals and citizens,” said Prof Oosthuizen.

 According to Prof Oosthuizen representatives from the education departments of the Northern Cape, Western Cape, Eastern Cape, KwaZulu-Natal and North West will also be attending the international workshop for trainers.  Representatives from the Universities of Rhodes, of KwaZulu-Natal, North West and the Durban University of Technology as well as the Cape Peninsula University of Technology will also attend the workshop.

 During this workshop teachers and lecturers in Economics will receive certificates. 

 Various subjects will be covered during the workshop such as world trade patterns, cost and benefits of free trade, exchange rates and international finance.  The training will be done by representatives from the NCEE by using methods such as direct instruction and role play.

 The NCEE is also in the process of training teachers and learning facilitators in the Free State in an effort to improve the quality of Economics classes in secondary schools. 

 “A group of 84 teachers and learning facilitators were trained in December 2005, 50 were trained in January 2006 and the last group of 40 will be trained at the UFS Main Campus in Bloemfontein from 26 June - 1 July 2006,” said Prof Oosthuizen.

 During this seminar the teachers will be trained in issues such as broad social goals in an economy, economic decision making, government’s role in a market economy and fiscal policy.  The training will also be done by representatives from the NCEE.

 The NCEE has been working together with international partners since 1992 to strengthen their Economics teaching systems.  They have already succeeded in increasing literacy in Economics at schools in the USA and more than 20 East Block countries.  More than 1,5 million learners in the East Block countries have already been served by this initiative.  Since 2004 the NCEE’s focus has moved away from the East Block countries to Africa, Asia, Latin America and the Middle East.

 “Our future plans include strengthening the growing partnership between the UFS, the Free State Department of Education and the NCEE.  We also want to establish a council and centres for economic education which will serve as an umbrella for our joint efforts,” said Prof Oosthuizen.

Media release
Issued by: Lacea Loader
Media Representative
Tel:   (051) 401-2584
Cell:  083 645 2454
E-mail:  loaderl.stg@mail.uovs.ac.za 
20 June 2006

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