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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

Artistic development at UFS to transform the face of Bloemfontein creatively
2015-07-02

The 7-metre high ‘Urban Fox’ is one of Alex Rinsler's artworks adding a fragment of the wild to the city of Shanghai in China.

Bold, bright, and beautiful public art sculptures are in the inception phase at the university’s Bloemfontein Campus. Manchester-based public artist, Alex Rinsler, of the Programme for Innovation in Artform Development (PIAD)’s forum for artist development, is to install three enthralling sculptures in the city of Bloemfontein.

The PIAD forum for artist development is an initiative of the Vrystaat Arts Festival, formerly known as the Vryfees, which aims to celebrate art in the Free State by hosting experimental art practices. In its capacity as a PIAD partner, the University of the Free State promotes increased access to, and participation in, culture as a form of human development.

Presenting an artist’s talk titled ‘Urban Safari: Art in public space,’ on the Bloemfontein Campus recently Rinsler introduced himself and his creative ideas to students, staff, and the public at the Johannes Stegman Art Gallery. The talk served as an invitation to the active participation of Bloemfontein citizens in all phases leading to the installations. Dispersed across the Mangaung Metropolitan, the giant sculptures are intended to capture and reflect different aspects of the community’s lived experiences. 

As a public artist based in the United Kingdom (UK), Rinsler has exhibited in cities nationally and internationally, with the intention of bringing a touch of the wild to urban lives. His vision is to witness the development of cities into cultural boulevards, and explore “what we can do to bring back the sense of nature, the wild” by adding new symbolism to urban lifestyle.

“I believe in creating work accessible to the public, which stimulates conversation,” said the Clore Leadership Programme Fellow (University of Manchester) and Founder of Pirate Technics - an artistic practice company.

In 2012, he worked with 31 Master’s students from 24 countries on an icon for global peace named “Under the Baobab” in London. The colourful and magnificent Baobab tree made from pieces of fabric representing distinct cultures told the story of migration to London.

Rinsler is determined that the Bloemfontein “project, similar to the London installation, will create imagery that people will remember.”

Dr Ricardo Peach, Director of the Vrystaat Arts Festival and PIAD, hopes the project fosters diversity while producing a “communal cultural product." 

“What I know about Alex’s work is that he will be working with what he calls a self-selected community, people who are interested in this, and who want to work together to build these sculptures, as part as a process for them to get a sense of where they belong, and their input into the city. It’s about people telling their own stories.”

The public installations are a way of transforming the landscape, and connecting people of “a place like Bloemfontein where communities are often still so divided,” said Peach.

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