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30 December 2019 | Story Thabo Kessah | Photo Rian Horn
UFS Qwaqwa Campus
Hundreds of international botanists will be attending the 46th SAAB Annual Conference on the Qwaqwa Campus.

The University of the Free State Qwaqwa Campus is gearing up to host the 46th Annual Conference of the South African Association of Botanists from 7 to 10 January 2020. Talking about the choice of venue, Chairperson of the Local Organising Committee, Dr Sandy-Lynn Steenhuisen, said the unique setting in the shadow of the Maloti-Drakensberg Mountains highlights the Qwaqwa Campus as a fantastic base for interdisciplinary montane studies. “This is the home of the Afromontane Research Unit (ARU), and it will also give the delegates an opportunity to explore a treasure trove of botanical diversity on a post-conference tour to the top of the Amphitheatre in the Northern Drakensberg,” she said.

International delegates

“The conference will be attended by approximately 250 delegates representing at least 10 countries.  We are very excited to host two international and two national plenaries, namely Prof Peter Linder (University of Zürich), Prof Felipe Amorim (São Paulo State University – UNESP), Prof Annah Moteetee (University of Johannesburg), and our Young Botanist award winner from SAAB 2019, Ryan Rattray from GeneLethu Laboratories.”

SAAB 2020 is open to all researchers, industry partners, and citizen scientists from any botanical field. “The theme will embrace Qwaqwa’s cultural heritage by using the Sesotho phrase ‘Dimela ke bophelo’, which translates to ‘Plants are life’. This theme emphasises the dependence of all earthly life on plants. Delegates are offered the opportunity to book residence accommodation adjacent to the conference venue, and our conference organisers, XL Millennium, are eager to help with registration and any travel arrangements,” she added.

Botanists to be awarded

The conference will also be honouring botanists for their lifetime contributions to the field of plant sciences with the awarding of gold and silver medals, and the best doctoral thesis from the previous year with a bronze medal. These will be awarded during the gala dinner at the end of the conference.

News Archive

Prof Tredoux turns theories regarding the formation of metals on its head
2013-09-17

 

Prof Marian Tredoux
17 September 2013

The latest research conducted by Prof Marian Tredoux of the Department of Geology, in collaboration with her research assistant Bianca Kennedy and their colleagues in Germany, placed established theories regarding how minerals of the platinum-group of elements are formed, under close scrutiny.

The article on this research of which Prof Tredoux is a co-author – ‘Noble metal nanoclusters and nanoparticles precede mineral formation in magmatic sulphide melts’ – was published in Nature Communications on 6 September 2013. It is an online journal for research of the highest quality in the fields of biological, physical and chemical sciences.

This study found that atoms of platinum and arsenic create nanoclusters, long before the mineral sperrylite can crystallise. Thus, the platinum does not occur as a primary sulphur compound. The research was conducted at the Steinmann Institute of the University of Bonn, Germany, as well as here in Bloemfontein.

Monetary support from Inkaba yeAfrica – a German-South African multidisciplinary and intercultural Earth Science collaborative of the National Research Foundation (NRF) – made this research possible. Studies are now also being conducted on other metals in the precious metal group, specifically palladium, rhodium and ruthenium.

The discovery of the nanoclusters and the combination with arsenic can have far-reaching consequences for the platinum mine industry, if it can be utilised to recover a greater amount of platinum ore and therefore less wastage ending up in mine dumps. This will signify optimal mining of a scarce and valuable metal, one of South Africa’s most important export products.

For Prof Tredoux, the research results also prove thoughts she already had some twenty years ago around the forming of platinum minerals. “Researchers laughed in my face, but the evidence had to wait for the development of technology to prove it.” Young researchers were very excited at recent congresses about the findings, since the new models can bring new insights.

“Chemistry researchers have been talking about platinum element clusters in watery environments for quite a while, but it was thought that these would not appear in magmas (molten rock) due to the high temperatures (>1 000 degrees celsius).”

Prof Tredoux has already delivered lectures at congresses in Scotland, Hungary, Sweden and Italy on this research.

Read the article at: http://www.nature.com/ncomms/2013/130906/ncomms3405/full/ncomms3405.html

 

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