Changes in dehydrogenases activity, number and ultrastructure of mitochondria in Aspergillus niger mycelium growing on molasses media.
Effects of toxic molasses compounds and of the antifoamer (Spumol BJ) on dehydrogenases activity, on the number and ultrastructure of mitochondria in A. niger mycelium of two strains characterized by different tolerance to toxic agents, were observed. In spite of significantly higher dehydrogenases activity in the intolerant strain (R-16) mycelia developing both on productive molasses in the presence of the defoamer and on non-productive molasses are characterized by marked reduction in the activity of these enzymes. Changes in respiratory enzymes activity are partly correlated with the number of mitochondria but mostly with abnormalities in their ultrastructure.
Gabara
B
B
Department of Plant Cytology and Cytochemistry, University of Lódz, Poland.
Zakowska
Z
Z
D001234:Aspergillus niger / Q000201:enzymology* / Q000254:growth & development / Q000648:ultrastructure; D003470:Culture Media; D008854:Microscopy, Electron; D008928:Mitochondria / Q000201:enzymology* / Q000648:ultrastructure; D008965:Molasses; D010088:Oxidoreductases / Q000378:metabolism*
D003470:Culture Media; D010088:Oxidoreductases