Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
12 May 2021 | Story Leonie Bolleurs | Photo Supplied
Wilku Meyer is the co-recipient of the Junior Captain Scott Memorial Medal for Plant Sciences, awarded every second year by the South African Academy for Science and Arts for the best MSc dissertation awarded at a South African university.

In 2016, sunflower rust was very prominent, causing trouble in the agricultural industry. With the latest information on this topic published as far back as the 1990s, Wilku Meyer, PhD Botany student at the University of the Free State (UFS), saw the gap in research and decided to make sunflower rust the focus of his master’s dissertation. 

“After seeing the work researchers are doing in the Department of Plant Sciences at the UFS and how it can be applied, it was reassuring to know that the work you are doing can, in addition to broadening your own horizons, also help other people,” says Meyer. 

Not only will his research one day possibly make a positive difference in the agriculture sector, but he has also received acknowledgement for this work from the prestigious body, the South African Academy for Science and Arts

Best MSc dissertation in Plant Sciences

With his dissertation: ‘Phenotypic and genotypic variation of Puccinia helianthi in South Africa’, Meyer is the co-recipient of the Junior Captain Scott Memorial Medal for Plant Sciences, awarded every second year by the South African Academy for Science and Arts for the best MSc dissertation awarded at a South African university. Ruan van der Nest from the Stellenbosch University Department of Agronomy shared the award with him. 

The focus of his dissertation was to see how many different races of the Puccinia helianthi fungus are responsible for sunflower rust. He explains: “I followed two approaches to this, namely the phenotypic approach whereby specific sunflower lines are infected with spores of different Puccinia helianthi isolates collected from sunflower fields in South Africa. With the second approach, the genotypic approach, I looked at the DNA of collected rust samples and compared them with each other.” 

In the end, he was able to identify six races in total that were spread across four main genetic groups.

Meyer did not settle for subpar results and kept going, no matter how much work it was, or the time required. He put all his time and effort into this study. He believes that the guidance of his supervisors and the support of his family and friends also helped with this big achievement.

Hard-working, dependable, and mature researcher

Prof Botma Visser (Botany), one of Meyer’s supervisors during his master’s study, describes him as hard-working, dependable, and a mature researcher. According to Prof Visser, the one attribute that will benefit him with his PhD, is his computer skills, especially in the field of Bioinformatics. “This is becoming an important skill set for postgraduate students, whereby huge datasets generated with the newest DNA sequencing technologies are analysed to provide next-generation results and understanding the interactions between a plant and a pathogen.” 

“Finally, and maybe his best quality, is that he really loves what he is currently doing – from the practical hands-on work in the greenhouse, to the laboratory and computer-based molecular analyses of the plant pathogen,” adds Prof Visser. 

Meyer, in response to the award from the South African Academy for Science and Arts, says it is an honour. “I'm very grateful that all the time and effort is being recognised. It is a confirmation that I'm doing what I should be doing.”

He started his PhD study this year (2021), again under the supervision of Prof Botma Visser and Prof Willem Boshoff (Plant Pathology). 

News Archive

Champagne and cancer have more in common than you might think
2013-05-08

 

Photo: Supplied
08 May 2013

No, a glass of champagne will not cure cancer....

…But they have more in common than you might think.

Researchers from the Departments of Microbial Biochemical and Food Biotechnology, Physics and the Centre for Microscopy at the University of the Free State in South Africa were recently exploring the properties of yeast cells in wine and food to find out more of how yeast was able to manufacture the gas that caused bread to rise, champagne to fizz and traditional beer to foam. And the discovery they made is a breakthrough that may have enormous implications for the treatment of diseases in humans.

The team discovered that they could slice open cells with argon gas particles, and look inside. They were surprised to find a maze of tiny passages like gas chambers that allowed each cell to ‘breathe.’ It is this tiny set of ‘lungs’ that puts the bubbles in your bubbly and the bounce in your bread.

But it was the technique that the researchers used to open up the cells that caught the attention of the scientists at the Mayo Clinic (Tumor Angiogenesis and Vascular Biology Research Centre) in the US.

Using this technology, they ultimately aim to peer inside cells taken from a cancer patient to see how treatment was progressing. In this way they would be able to assist the Mayo team to target treatments more effectively, reduce dosages in order to make treatment gentler on the patient, and have an accurate view of how the cancer was being eliminated.

“Yes, we are working with the Mayo Clinic,” said Profes Lodewyk Kock from the Microbial, Biochemical and Food Biotechnology Department at the UFS.

“This technique we developed has enormous potential for cell research, whether it is for cancer treatment or any other investigation into the working of cells. Through nanotechnology, and our own invention called Auger-architectomics, we are able to see where no-one has been able to see before.”

The team of Prof Kock including Dr Chantel Swart, Kumisho Dithebe, Prof Hendrik Swart (Physics, UFS) and Prof Pieter van Wyk (Centre for Microscopy, UFS) unlocked the ‘missing link’ that explains the existence of bubbles inside yeasts, and incidentally have created a possible technique for tracking drug and chemotherapy treatment in human cells.

Their work has been published recently in FEMS Yeast Research, the leading international journal on yeast research. In addition, their discovery has been selected for display on the cover page of all 2013 issues of this journal.

One can most certainly raise a glass of champagne to celebrate that!

There are links for video lectures on the technique used and findings on the Internet at:

1. http://vimeo.com/63643628 (Comic version for school kids)

2. http://vimeo.com/61521401 (Detailed version for fellow scientists)

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