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20 September 2021 | Story Leonie Bolleurs | Photo Supplied
Prince Matova, a PhD student in the Department of Plant Sciences, has been working on breeding a maize that can resist the fall armyworm (FAW) – a maize-eating pest. Later in September, he will receive the Young Scientist Award from the Plant Mutation Breeding Division of the International Atomic Energy Agency (IAEA) and the Food and Agriculture Organisation of the United Nations (FAO).

Prince Matova, a PhD student in Plant Breeding at the University of the Free State (UFS), received the Young Scientist Award from the Joint Food and Agriculture Organisation of the United Nations (FAO)/International Atomic Energy Agency (IAEA) Division of Nuclear Techniques in Food and Agriculture for excellence in plant mutation breeding.

The IAEA Director-General, Mr Rafael Mariano Grossi, will officially announce the award at the 65th regular session of the IAEA General Conference that will take place later in September this year.

The award is given to scientists younger than 40, who have made a significant contribution and impact in the field of mutation breeding.

Matova, a researcher, research and agronomy manager, and maize and legumes breeder at Mukushi Seeds (Pvt) Ltd in Harare, Zimbabwe, says: “People have seen the little work that I have done, and they were happy with it. That makes me happy too.”

Other contributions

In the ten years collaborating with the IAEA, practising mutation breeding, Matova – who believes innovative thinking and self-motivation to be contributing factors to a successful scientist – has also been recognised for other outstanding contributions. These include the release of a cowpea mutant variety in 2017 and its wide dissemination across Zimbabwe, as well as the modernisation of the maize and cowpea national breeding programmes. He has also contributed two publications and appeared twice at IAEA Plant Mutation Breeding symposia. Furthermore, Matova has trained other scientists and fellows across Africa and collaborated with centres of excellence in plant breeding, research, and development.

Growing up, he never guessed that he would one day become an agricultural scientist. Matova was, however, very good at biology and believes that this is one of the reasons why he ended up in crop science. “I am enjoying every moment of it. I love innovativeness and inventions and I view hybrid maize variety development as the greatest innovation in plant breeding. Working for Mukushi Seeds is inspiring; I have a young and dedicated team and the environment allows me to explore my full potential.”

“I feel science solves problems and every day as I do my breeding work, I have this desire to achieve greatness by developing a super maize hybrid,” he says.

Displaying excellence

For the past three to four years, Matova has been working to breed maize varieties that can resist fall armyworm (FAW) – a maize-eating pest. He says the pest has caused significant maize crop yield and economic losses across Africa.

More than 300 million smallholder farmers across sub-Saharan Africa rely on maize for food and livelihoods. “These farmers have limited capacities to control the pest. They are using insecticides, which we have seen to effectively provide immediate control of the pest.” However, these pesticides have environmental and health issues. “It is against this background that we, as plant breeders, felt it was important to develop varieties that are resistant to the pest. It is a more environmentally friendly, less expensive, and more sustainable solution,” explains Matova.
In his research, he evaluated the breeding potential of exotic FAW-resistant donor lines with local lines. He also investigated the resistance response and stability of local cultivars and inbred lines against FAW. 

While working at the Zimbabwean Department of Research and Specialist Services (DR&SS), Matova collaborated with the International Maize and Wheat Improvement Center (CIMMYT), the University of Zimbabwe, the UFS, and the IAEA to look into the possibility of using mutation breeding in maize crop improvement, with the intention to enhance FAW-resistance in maize genotypes.

He introgressed FAW resistance into the elite breeding materials at both DR&SS and Mukushi Seeds, where he is currently working. Matova believes that although FAW resistance is currently a nice-to-have trait, going forward, all maize varieties released should have a baseline resistance to FAW.

Ultimately, his work generated important information that can guide research and maize breeding for FAW resistance in Southern Africa. All this information is free for researchers to use for the betterment of Africa and the world.

Inspired by greatness

There are a number of people in the industry and academia who have inspired Matova. The list includes Dr Cosmos Magorokosho (CIMMYT), Prof Hussein Shimelis (University of KwaZulu-Natal), Dr Fatma Sarsu (IAEA), Dr Marilyn Warburton (Agricultural Research Service in the United States Department of Agriculture), Dr Amsal Terekegne (ZAMSEED), and Dr John MacRobert (Mukushi Seeds). They all contributed in one way or another to influence Matova in a positive way towards becoming the passionate scientist he is today.

Besides this list of prominent names, Matova says that he was more recently also motivated and encouraged by his PhD supervisor and mentor, Prof Maryke Labuschagne, Professor in Plant Sciences at the UFS. “She is a very special person doing a wonderful job. Prof Labuschagne is kind, thorough, hardworking, and a good mentor,” he states.

Prof Labuschagne is very proud of Matova for receiving this award. “He has been working really hard, and this is a wonderful recognition of the time and effort that he has invested in his research,” she says.


News Archive

Nanotechnology breakthrough at UFS
2010-08-19

 Ph.D students, Chantel Swart and Ntsoaki Leeuw


Scientists at the University of the Free State (UFS) made an important breakthrough in the use of nanotechnology in medical and biological research. The UFS team’s research has been accepted for publication by the internationally accredited Canadian Journal of Microbiology.

The UFS study dissected yeast cells exposed to over-used cooking oil by peeling microscopically thin layers off the yeast cells through the use of nanotechnology.

The yeast cells were enlarged thousands of times to study what was going on inside the cells, whilst at the same time establishing the chemical elements the cells are composed of. This was done by making microscopically small surgical incisions into the cell walls.

This groundbreaking research opens up a host of new uses for nanotechnology, as it was the first study ever in which biological cells were surgically manipulated and at the same time elemental analysis performed through nanotechnology. According to Prof. Lodewyk Kock, head of the Division Lipid Biotechnology at the UFS, the study has far reaching implications for biological and medical research.

The research was the result of collaboration between the Department of Microbial, Biochemical and Food Biotechnology, the Department of Physics (under the leadership of Prof. Hendrik Swart) and the Centre for Microscopy (under the leadership of Prof.Pieter van Wyk).

Two Ph.D. students, Chantel Swart and Ntsoaki Leeuw, overseen by professors Kock and Van Wyk, managed to successfully prepare yeast that was exposed to over-used cooking oil (used for deep frying of food) for this first ever method of nanotechnological research.

According to Prof. Kock, a single yeast cell is approximately 5 micrometres long. “A micrometre is one millionth of a metre – in laymen’s terms, even less than the diameter of a single hair – and completely invisible to the human eye.”

Through the use of nanotechnology, the chemical composition of the surface of the yeast cells could be established by making a surgical incision into the surface. The cells could be peeled off in layers of approximately three (3) nanometres at a time to establish the effect of the oil on the yeast cell’s composition. A nanometre is one thousandth of a micrometre.

Each cell was enlarged by between 40 000 and 50 000 times. This was done by using the Department of Physics’ PHI700 Scanning Auger Nanoprobe linked to a Scanning Electron Microscope and Argon-etching. Under the guidance of Prof. Swart, Mss. Swart en Leeuw could dissect the surfaces of yeast cells exposed to over-used cooking oil. 

The study noted wart like outgrowths - some only a few nanometres in diameter – on the cell surfaces. Research concluded that these outgrowths were caused by the oil. The exposure to the oil also drastically hampered the growth of the yeast cells. (See figure 1)  

Researchers worldwide have warned about the over-usage of cooking oil for deep frying of food, as it can be linked to the cause of diseases like cancer. The over-usage of cooking oil in the preparation of food is therefore strictly regulated by laws worldwide.

The UFS-research doesn’t only show that over-used cooking oil is harmful to micro-organisms like yeast, but also suggests how nanotechnology can be used in biological and medical research on, amongst others, cancer cells.

 

Figure 1. Yeast cells exposed to over-used cooking oil. Wart like protuberances/ outgrowths (WP) is clearly visible on the surfaces of the elongated yeast cells. With the use of nanotechnology, it is possible to peel off the warts – some with a diameter of only a few nanometres – in layers only a few nanometres thick. At the same time, the 3D-structure of the warts as well as its chemical composition can be established.  

Media Release
Issued by: Mangaliso Radebe
Assistant Director: Media Liaison
Tel: 051 401 2828
Cell: 078 460 3320
E-mail: radebemt@ufs.ac.za  
18 August 2010
 

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