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15 April 2023 | Story Gerda-Marié van Rooyen | Photo Two Oceans Marathon Twitter
Gerda Steyn  winning the 2023 Two Oceans Marathon
Former UFS student, Gerda Steyn, made history this weekend – she is the first woman to win the Two Oceans Ultra Marathon four consecutive times.

Kovsie alumna Gerda Steyn provided much jubilation on Saturday 15 April 2023, as she became the first woman to win the Two Oceans Marathon four consecutive times. Steyn, who represented South Africa in the 2020 Summer Olympics held in Tokyo, Japan, in 2021, improved her personal best by finishing the race 39 seconds faster than her winning time in 2022.

Shortly after her fourth win in the 56 km race, Steyn told media that the desire to inspire girls kept her motivated during the race. “I thought of all the girls watching (the race) with their parents and seeing a woman who looked like everyone else winning this big race.” The former University of the Free State (UFS) professional athlete managed an average pace of 3:45 minutes per kilometre. Steyn proved that hard work pays off, as she finished 14th at the Two Oceans Ultra Marathon in 2016. Her first-ever first place at this race was in 2018, and again in 2019 and 2022 – the marathon was cancelled in 2020 and 2021 due to the COVID-19 pandemic.

Proving that she not only has golden feet but a heart of gold too, she pledged to donate some of her bonus money towards the development of athletes living in Muizenberg shortly after she won the Two Oceans in record time in 2022. A true example of perseverance and hard work, she also won the Comrades Marathon in 2019, and finished seventh in the London Marathon in 2020. 

Prof Francis Petersen, Rector and Vice-Chancellor of the UFS, says that Gerda is an embodiment of focus and determination. “I am so proud of her. The UFS is truly the home of champions, as can be seen by the achievements of Olympic track athletes Wayde van Niekerk, Louzanne Coetzee, and champions in many other sporting codes.”

Saturday’s Two Oceans Marathon saw Ethiopian-born Amelework Fikadu Bosho finish second in the women’s race – crossing the finish line 12 minutes after Steyn – with Carla Molinaro from Britain in the third position. Approximately 10 000 athletes entered the race, starting at the Newlands Stadium and ending on the University of Cape Town's campus.

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Research by experts published in Nature
2011-06-02

 
The members of the research group are, from the left, front: Christelle van Rooyen, Mariana Erasmus, Prof. Esta van Heerden; back: Armand Bester and Prof. Derek Litthauer.
Photo: Gerhard Louw

A  research article on the work by a team of experts at our university, under the leadership of Prof. Esta van Heerden, and counterparts in Belgium and the USA has been published in the distinguished academic journal Nature today (Thursday, 2 June 2011).

The article – Nematoda from the terrestrial deep subsurface of South Africa – sheds more light on life in the form of a small worm living under extreme conditions in deep hot mines. It was discovered 1,3 km under the surface of the earth in the Beatrix Goldmine close to Welkom and is the first multi-cellular organism that was found so far beneath the surface of the earth. The worm (nematode) was found in between a rock face that is between 3 000 and 12 000 years old.

The research can shed some new light on the possibility of life on other planets, previously considered impossible under extreme conditions. It also expands the possibilities into new areas where new organisms may be found.

These small invertebrates live in terrestrial soil subjected to stress almost for 24 hours They live through sunshine, rain, scorching temperatures and freezing conditions. Through time they developed a means to cope with harsh conditions. Terrestrial nematodes (roundworms, not to be confused or related to earthworms) are among those very tough small invertebrates that deal with those conditions everywhere. After insects they are the most dominant multi-cellular (metazoan) species on the planet having a general size of 0,5 to 1 mm and are among the oldest metazoans on the planet, Nature says in a statement on the article.

They inhabit nearly every imaginable habitat form the deep seas to the acid in pitcher . Some nematodes simply eat bacteria and these are the ones we study here. Terrestrial nematodes have developed a survival stage that can take them through hard times (absence of food, extreme temperatures, too little oxygen, crowding, and more).

At the head of the research was Prof. Gaetan Borgonie of the Ghent University in Belgium and a world leader in the discipline of nematode research. He was brought into contact with the South African research leader, Prof. Esta van Heerden, who set up a cooperation agreement with the University of Ghent and Prof. Borgonie. Prof. Van Heerden manages the Extreme Biochemistry group at the UFS and the research was funded by several research grants.

The search for worms began in earnest in 2007, but it was soon clear that the sampling strategy was insufficient. A massive sampling campaign in 2008-2009 in several mines led to the discovery of several nematodes and the new nematode species Halicephalobus mephisto. It is named after the legend of Faust where the devil, also known as the lord of the underworld is called Mephistopheles.

Nature says special filters had to be designed and installed on various boreholes. Unfortunately, there is no easy way of finding a magic formula and designs had to be adapted by trial and error; improving existing designs all the time. The work of the UFS Mechanical Workshop, which manufactured, adapted and helped design it, was crucial in this respect. Filters were left on the holes for varying periods, sometimes for a few hours and sometimes for months. Prof. Derek Litthauer from the UFS played a big role in sampling, filter designs and coming up with ideas for names for the new nematode with Prof. Borgonie.

Research showed that the nematodes can live in the deep for up to 12 000 years. Three students – Armand Bester, Mariana Erasmus and Christelle van Rooyen from the UFS – did the work on this.

The importance of multi-cellular animals living in the ultra-deep subsurface is twofold: The nematodes graze on the existing bacterial population and influence their turnover. Secondly, if more complex multi-cellular organisms can survive in the deep subsurface on earth, this may be good news when looking for life on other planets where the surface is considered too inhospitable (e.g. Mars). Complex life forms can be found in ecosystems previously thought to be uninhabitable. Nature says this expands the possibilities into new areas where new organisms may be discovered.

Future research will focus on selective boreholes to look for more metazoans, so that a better idea of the complexity of the ecosystems there can be obtained. It will also look for metazoans in the deep subsurface on other continents to determine similarities and differences.

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