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

2015 Spring Graduation Ceremony rekindles spirit of Ubuntu

2015-09-22

Our graduates: A new generation of future leaders
to advance South Africa

- Video: Spring Graduation Ceremony

“Give away your love, attention, care and more.” These words of Prof Jonathan Jansen, Vice-Chancellor and Rector of the University of the Free State (UFS), capture the spirit of the 2015 Spring Graduation Ceremony that took place on Thursday 17 September 2015.

On this special day, 599 diplomas and degrees were conferred from the faculties of the Humanities, Education, Law, Theology, Economic and Management -, Health -, and Natural and Agricultural Sciences. Central to both the morning and afternoon ceremonies was the message of Ubuntu.

The essence of humanity

“Here is my advice to you,” Prof Jansen said to the graduates, “whatever you have, give it away. Give away your love, attention, care and more.” Prof Jeffrey Sachs, guest speaker at both events, supported this message by saying that the essence of humanity is the cornerstone to success. Prof Sachs, a prominent American economist and humanitarian, asked graduates to use their hard-earned knowledge wisely, fairly and boldly. “You are the wealth of South Africa, for your knowledge is the key to SA’s prosperity.”

The UFS Faculty of Economic and Management Sciences honoured Prof Sachs by conferring an honorary doctorate on him. With this prestigious conferral, the faculty acknowledges Prof Sach’s extensive work in sustainable economic, social and political development across the globe. Dr Khotso Mokhele, Chancellor of the UFS, commended Prof Sachs for his compassion and passion for humanity. “I’m truly inspired that you agreed to associate yourself with this institution. We are proud to be associated with your excellence,” Dr Mokhele said.

Celebrating the extraordinary

One of many highlights of the day was when Leanne Kunz and Karabo Motlhakoana walked across the stage to respectively receive their Postgraduate Diploma in Business Administration and a BSc degree in Information Technology.

Kunz has been compiling news bulletins for The Breakfast Special show, aired on the OFM radio station, for five years. This Kovsie Alumnus graduated with a Media Studies degree a few years ago. Kunz did not allow her successful career at the popular radio station to hinder her studying further, though. Neither has Motlhakoana’s physical challenges.

While everyone else used their hands to take notes, Motlhakoana used his foot. Despite being born with no arms, he was able to beat the odds by qualifying as a computer scientist. Motlhakoana was also involved in the Leadership for Change programme in 2011 which contributed to producing the well-rounded graduate he is today. When walking across the stage, “I felt like I achieved something that gave me a challenge,” he said.

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