title: Nitrofuran-reducing enzymes of Euglena.
abstract: Euglena gracilis strain Z, green, dark-brown, and "bleached" with N-methyl-N-nitro-N-nitrosoguanidine, was found to contain 2 soluble enzymes which reduce nitrofurans.  A small amount of activity was demonstrated also in a particulate fraction of sonic extracts, but none in isolated chloroplasts.  The reduction of 5 nitrofurans, having widely differing bleaching activities, by each of the 2 enzymes was examined.
mesh_terms: D002736:Chloroplasts / Q000201:enzymology; D004789:Enzyme Activation; D005056:Euglena gracilis / Q000201:enzymology*; D006863:Hydrogen-Ion Concentration; D009581:Nitrofurans / Q000378:metabolism*; D009582:Nitrofurantoin / Q000378:metabolism; D009583:Nitrofurazone / Q000378:metabolism; D010084:Oxidation-Reduction; D010088:Oxidoreductases / Q000378:metabolism*
chemical_list: D009581:Nitrofurans; D009582:Nitrofurantoin; D010088:Oxidoreductases; D009583:Nitrofurazone