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08 October 2020 | Story Leonie Bolleurs | Photo Supplied
Dr Cornel Bender
Dr Cornel Bender received her PhD qualification at the virtual graduation ceremonies in October. The title of her thesis is: Stem rust resistance in South African wheat and triticale.

The rapid distribution of disease-causing organisms such as Ug99, a wheat stem-rust pathotype, pointed out just how vulnerable global cereal production is to disease outbreaks.

These cereals include wheat, barley, rye, oats, triticale, rice, maize, and millet and are one of the most important food sources for human consumption.

According to Dr Cornel Bender, the projected world population of 10 billion in 2057 requires a growth of more than 40% in cereal production. Wheat is grown on more hectares than any other cereal and is one of the most important sources of calories for humans. However, the growth rate of wheat yields has declined from the 1960s to the 1990s. Therefore, it is essential to increase global wheat production.

“With the regular appearance of more aggressive stem rust pathotypes in South Africa, there is a constant need to discover new sources of resistance, understand the genetic base of presently deployed sources in wheat, triticale and barley cultivars, and to manipulate the deployment of resistant sources through a more sustainable approach,” says Dr Bender.

Her PhD thesis, titled: Stem rust resistance in South African wheat and triticale, includes various fundamental aspects for the effective management of stem rust in South Africa.

Dr Bender is a Professional Officer in the Division of Plant Pathology in the Department of Plant Sciences, who received her PhD at the virtual graduation ceremonies in October.

Innovative and cost effective

Her promotors, Prof Zakkie Pretorius, Research Fellow, and Dr Willem Boshoff, Senior Lecturer in the Department of Plant Sciences, believe that she used an innovative approach to develop a cost-effective phenotyping method to select for more durable resistance types in a controlled greenhouse environment.

“In the past, results obtained from field trials used to assess adult plants for stem-rust resistance, were often influenced by abiotic factors, were seasonable in nature, expensive, and time consuming; therefore, the development of a dependable greenhouse screening system provides an important additional instrument for rust research,” says Dr Bender.

She adds that the greenhouse technique is used worldwide to screen for adult plant resistance and contribute to save time and money.

Broadening our knowledge

“Inheritance studies were undertaken to determine the genetic base of stem-rust resistance in selected South African wheat and triticale cultivars (developed from wheat/rye crosses) through seedling analysis as well as greenhouse and fieldwork,” she says.

Dr Bender believes the use and development of different resistance screening methods, the elucidation of host genetics, as well as the use of histological and microscopic methods to study early resistance responses, broaden our knowledge and understanding of stem-rust resistance in South African wheat and triticale cultivars.

Ultimately, rust researchers, grain producers, and also the general public – through access to their daily bread – will benefit from her study.

News Archive

Postdoc student broadens the interpretation of being productive
2013-09-16

 

Abdon Atangana
13 September 2013

Postdoc student Abdon Atangana (27) in the Institute for Groundwater Studies (IGS) brings a new dimension to the word ‘productive’. Since the beginning of this year he has published 23 articles in accredited journals. He is also guest editor in two reputed scientific journals.

Atangana – originally from Cameroon – enrolled at the UFS in 2009, finishing his BSc Honours in Applied Mathematics in one year. By the end of 2010 he could add MSc in Applied Mathematics to his CV. If this was not an accomplishment enough in itself, he passed both degrees cum laude. In 2011 he tackled his PhD in Geohydrology and submitted his final thesis in January 2013 – being the youngest PhD graduate at the Winter Graduation.

Besides his impressive publishing success, an additional 28 of his papers are currently under review by international journals in Applied Mathematics.

Atangana’s accomplishments in the publishing arena are phenomenal. He is lead guest editor for the special issue on Theory, Methods, and Applications of Fractional Calculus in The Scientific World Journal. He is also guest editor for the special issue on Analytical and Numerical Approaches for Complicated Nonlinear Equations in Abstract and Applied Analysis.Furthermore, he has been appointed on the editorial board of New Trends in Mathematical Sciences and is a reviewer for nine international accredited journals in Applied Mathematics.

This extraordinary academic has already presented papers on international conferences in America, Turkey and Thailand as well.

Atangana is truly the embodiment of the UFS’ core value of inspiring excellence.

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