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05 April 2021 | Story Dr Nitha Ramnath | Photo Supplied
Jamba Isaac Ulengo.
Jamba Isaac Ulengo, our guest in the third episode of the Voices of the Free State podcast series is a South African rugby union player who proudly joined his team in bringing home a gold medal at the 2013 World Games. 

François van Schalkwyk and Keenan Carelse, UFS alumni leading the university’s United Kingdom Alumni Chapter, have put their voices together to produce and direct the podcast series.  Intended to reconnect alumni with the university and their university experience, the podcasts will be featured on the first Monday of every month, ending in November 2021.  Our featured alumni share and reflect on their experiences at the UFS, how it has shaped their lives, and relate why their ongoing association with the UFS is still relevant and important. The podcasts are authentic conversations – they provide an opportunity for the university to understand and learn about the experiences of its alumni and to celebrate the diversity and touchpoints that unite them. 

Our podcast guest

Born in the North West town of Vryburg, Ulengo first played provincial rugby at the U16 Grant Khomo Week in 2005. While attending Jim Fouché High School in Bloemfontein, Ulengo was chosen to represent the Free State at various youth levels. As an up-and-coming player, Ulengo made his break via the FNB Varsity Cup Competition where he starred for the Shimlas, scoring 11 tries in 18 appearances over the three seasons between 2010 and 2012. A short stint with the Free State Vodacom Cup side saw him make his debut for the Blitzboks (Glasgow 2012), followed by a tournament at the London Sevens in 2014. Ulengo has been a prominent member of the South African Sevens since making his debut for the team in the Scotland leg of the 2011-2012 IRB Sevens World Series. He played in the two final tournaments of that season and then signed a two-year contract with the South African Rugby Union to represent the team in the 2012-2013 and 2013-2014 series. While he only competed at four events in his first full season, he was involved in seven of the tournaments in his second season. 

Ulengo made his return to the sport by signing a contract to play Currie Cup rugby for the Pretoria-based Blue Bulls in 2014 and for their Super Rugby franchise, the Bulls, from the 2015 Super Rugby season. 

News Archive

Extending new discoveries in the deep subsurface – UFS paper published in Nature Communications
2015-11-30



Scanning electron microscopy of some of the Eukarya recovered from two different mines. (a) Dochmiotrema sp. (Plathyelminthes), (b) A. hemprichi (Annelida), (c) Mylonchulus brachyurus (Nematoda), (d) Amphiascoides (Arthropoda). Scale bar, 50 µm (a,b), 100 µm (c), 20 µm (d).

Following the discovery of the first Eukarya in the deep subsurface (Nature, 2010) by a research group from the Department of Microbial, Biochemical, and Food Biotechnology at the University of the Free State (UFS) and their international collaborators, intense interest has developed in understanding the diversity of more complex organisms living in these extreme environments.

Prof Gaetan Borgonie from Extreme Life Isyensya, together with a group of UFS researchers, took this research further, resulting in a paper on this research released in Nature Communications – impact factor 11.47.  This paper is an extension of the first reports of more complex life at great depths, and their abilities to survive these harsh conditions.

Ten authors from the UFS contributed with the array of expertise needed to define this discovery. The group was supported by staff from the different mining groups, long-term leading collaborators from the USA and Canada, and the idea specialist driver of the paper, Prof Borganie.

“After a sampling campaign that lasted more than two years, we identified that Platyhelminthes, Rotifera, Annelida and Arthropoda are thriving at 1.4 km depths in fissure water up to 12,000-years old in the South African mines of Driefontein and Kopanang,” said Prof Borgonie, who was appointed as associated researcher in the Department of Microbial, Biochemical, and Food Biotechnology.

This paper really opens a “can of worms” so to speak. According to Prof Esta van Heerden from the Department of Microbial, Biochemical and Food Biotechnology at the UFS they extended to define protozoa and fungi. “However, they are present in low numbers,” she said.

Characterisation of the different species reveals that many are opportunistic organisms. In house-adapted video equipment was used to film inside the fissure for the home of the organisms.

This is the first-known study to demonstrate the in situ distribution of biofilms on fissure rock faces using video documentation. Calculations suggest that food, not dissolved oxygen, is the limiting factor for population growth. The discovery of a group of complex multicellular organisms in the underground has important implications for the search for life on other planets in our solar system.

More articles

The strange beasts that live in solid rock deep underground
A microscopic ‘zoo’ is found deep, deep underground

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