Ms Claudette Dewing

MSc student


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Primary Supervisor
Lieschen De Vos

Co Supervisor
Emma Steenkamp
Brenda Wingfield
Magriet van der Nest

I am currently a MSc student at the University of Pretoria in the Microbiology programme where I will perform detailed investigations on the genomics, gene expression and phenotypic characteristics of species within the FFSC of the genus Fusarium to understand how host specificity in these species are mediated. Many would ask, “Why Fusarium?” and I would immediately think, “Why not Fusarium?”. Species in this genus are associated with devastating diseases all over the world, such as pitch canker of pine trees caused by Fusarium circinatum or maize infections by Fusarium subglutinans and Fusarium temperatum. These fungi target host plants which have high economic importance, such as pine trees for paper production and maize plants serving as staple food across Africa. It is therefore crucial to maintain and control these fungi to prevent even more economical losses.


I obtained my BSc degree in Biochemistry and decided to implement this knowledge in the field of Microbiology for my honours degree. My honours project indicated that genome comparisons can reveal the processes implicated in host specificity, specifically in agriculturally important Fusarium species. I became incredibly interested in the specific factors employed by this group of fungi to confer pathogenicity on their hosts. I am very eager to discover and reveal the basis of these molecular mechanisms by taking the constant evolution of these pathogens into account. 

My Galeries


SASM conference 2018

Culture collection

SPOOF 2018

Social Club 2018/2019

Meeting Prof Jan Stenlid

FABI start-up breakfast 2019


FABIans flexed their green fingers at 2019’s first tree planting session

A team of about 40 students spent the morning on 21 March replanting 1600 cuttings into potting bags at the FABI nursery on the University of Pretoria’s experimental farm.

FABI attends the Fungal Genetics meeting

Eight Fabians attended the Fungal Genetics meeting in Asilomar, California during March 2019.

Busy week in the field for the TPCP

In the week of 4 March, the TPCP had three different field trips to the KwaZulu-Natal, Midlands.

Mammoth inoculation trial of pine seedlings

Late in 2018, 14 FABIans banded together for the mammoth task of inoculating and disease assessment of 6,360 Pinus patula seedlings with 159 Fusarium circinatum isolates.


In March 2018 four FABIans won prizes at the South African Society of Microbiology Congress.