Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
25 May 2020

The Centre for Gender and Africa Studies (CGAS) and the UFS will host an Africa Day Webinar on the topic, Reflections on Africa amidst Covid-19, to be delivered by Prof. Sabelo J. Ndlovu-Gatsheni, renowned decolonial scholar. The title of his lecture is Revisiting the African idea of Africa during the moment of Covid-19 pandemic.

The crisis delivered by Coronavirus and Covid-19 invites Africans to rethink and even unthink the long-standing dependency on Europe and North America for help. What has dawned on Africa is the equally long-standing aspiration of self-reliance. What is emerging is a new African idea of Africa which takes responsibility for its own challenges. This new African idea of Africa challenges the Mudimbean idea of Africa embodied in the colonial library.

Thus this presentation reassesses how Africa has relied on its own historical experience, its own knowledge, and own people to confront Covid-19. What is of interest here is the proverbial wisdom of necessity being the source of invention. The presentation brings to the fore the decolonial turn as it gestures beyond crisis into post-Covid-19 world order. It ends with a call for decolonial love founded on new ethics of living together and new economies of care.

Bio of Prof Sabelo J. Ndlovu-Gatshen


Date: Tuesday, 26 May, 2020
Time: 14:00
Duration: 90 min max (45 min talk, 45 min Q&A)

The webinar can be accessed via one of the following links:


OR

News Archive

Plant scientists address wheat rust diseases at SASPP congress
2015-02-02

Pictured from the left are: Prof Zakkie Pretorius, Dr Botma Visser and Howard Castelyn.
Photo: Supplied

In his research, Dr Botma Visser, researcher in the Department of Plant Sciences at the University of the Free State, highlighted the population dynamics of the stem rust fungus (Puccinia graminis f. sp. tritici) in Southern Africa. In recent years, two foreign stem rust races were introduced to South Africa, and a local virulence adaptation occurred in a third.

All of these races form part of the Ug99 group, a highly virulent collection of rust races endangering wheat production in many parts of the world. Despite the fact that half of the members of the Ug99 race group is prevalent in South Africa, Dr Visser’s work has clearly shown that Ug99 did not have its origin here. This emphasised the need to include neighbouring countries in the annual stem rust surveys, to proactively identify new races that could threaten local wheat production. In his research, Dr Visser also mentioned the way in which he has optimised modern molecular tools to accurately detect Ug99 isolates.

Dr Visser is one of three scientists from the Department of Plant Sciences that addressed delegates attending the biennial congress of the Southern African Society for Plant Pathology (SASPP) on the Bloemfontein Campus earlier this month on progress regarding research on wheat rust diseases conducted at the UFS.

Howard Castelyn, a PhD student in Plant Sciences, presented his research on quantifying fungal growth of the stem rust pathogen in wheat varieties displaying genetic resistance. This resistance, which is best expressed in adult plants, has the potential to remain durable in the presence of new rust variants. His presentation at the congress focused on optimising microscopic and molecular techniques to track fungal development in stem tissues of adult plants. These results now allow scientists to link rust infection levels and cellular responses with particular resistance genes expressed by the wheat plant, and contributing to the understanding and exploitation of durable resistance.

Prof Zakkie Pretorius presented his research, explaining how new genetic diversity for resistance to the stripe (yellow) rust fungus (Puccinia striiformis) is discovered, analysed and applied in South Africa. This research, conducted in collaboration with Dr Renée Prins and her team at CenGen, is unravelling the genetic basis of stripe rust resistance in a promising wheat line identified by Dr Willem Boshoff, a plant breeder at Pannar. The line and DNA markers to track the resistance genes will soon be introduced to South African wheat breeding programmes.

The rust research programme at the UFS contributes significantly to the successful control of these important crop diseases.

In addition to the contributions by the UFS, rust fungi featured prominently at the SASPP, with first reports of new diseases on sugar cane and Acacia and Eucalyptus trees in South Africa. A case study of the use of a rust fungus as a biological control agent for invasive plant species in the Western Cape, was also presented.

 

For more information or enquiries contact news@ufs.ac.za .

 

 

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