Plasmodium falciparum is the causative agent of malaria tropica. Due to the
increasing resistance towards the commonly used plasmodicidal drugs there
is an urgent need to identify and assess new targets for the chemotherapeut
ic intervention of parasite development in the human host. It is establishe
d that fl falciparum-infected erythrocytes are vulnerable to oxidative stre
ss, and therefore efficient antioxidative systems are required to ensure pa
rasite development within the host cell. The thioredoxin and glutathione re
dox systems represent two powerful means to detoxify reactive oxygen specie
s and this article summarizes some of the recent work which has led to a be
tter understanding of these systems in the parasite and will help to assess
them as potential targets for the development of new chemotherapeutics of
malaria.