Related Experiment Videos
Luminol luminescence induced by oxidants in antioxidant-deficient yeasts Saccharomyces cerevisiae
W Jakubowski1, D Ertel, T Biliński
1Department of Molecular Biophysics, University of Lódź, Poland. jakubo@biol.uni.lodz.pl
Abstract:
Luminol chemiluminescence induced in the presence of yeast cells and yeast cell homogenates was significantly induced by exogenous oxidants (hydrogen peroxide and menadione). tert-Butyl hydroperoxide did not stimulate chemiluminescence by itself but augmented menadione-induced chemiluminescence. Comparison of yeast strains deficient in catalase, superoxide dismutase or glutathione showed that only glutathione-deficient strains showed elevated chemiluminescence in this system. These results support the idea that more reactive species than hydrogen peroxide and superoxide are critical in the induction of luminol chemiluminescence.