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Killer fungi found in Cape Town city centre park

by 07/12/2017 11:27:00 0 comments 1 Views

“It was late on a Friday afternoon and I was working alone. I decided to check on the petri dishes that I prepared from the samples collected in Cape Town‚” said Vreulink‚ whose findings have been published in the journal Fungal Ecology.

“On most of the dishes brown colonies — typical of these cryptococcal pathogens — were growing. This was such a rare occasion that I started working immediately to transfer the colonies to new petri dishes for identification. I was scared to death that the colonies will be overgrown by other microorganisms if I left it over the weekend.”

The Cape Town find and another in the Northern Cape are the first locations where cryptococcal fungi have been found in such large numbers on trees in South Africa.

Vreulink said evidence from other countries suggested the fungi were found in areas with a combination of pigeons‚ old trees and large numbers of people.

Her research efforts have focused on understanding the biology and ecology of the single-celled yeasts that make up the colonies.

“For now‚ I’m focusing on the ecology of these yeasts. I want to understand the population dynamics‚ the genetics and how these it interacts with their environment‚” she said.

“If we can understand how they survive out there‚ we can use this knowledge to better predict how they can survive in their human host.”

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