title: Inhibition of paraquat phytotoxicity by a novel copper chelate with superoxide dismutating activity.
abstract: A chelate with superoxide dismutase activity, D-penicillamine copper complex, was shown to inhibit paraquat toxicity in flax cotyledons (Linum usitatissimum var. Reina). Paraquat-stimulated chlorophyll loss and ethane production were markedly reduced by this complex. The role of superoxide in the action of paraquat is briefly discussed.
mesh_terms: D002614:Chelating Agents; D003300:Copper / Q000494:pharmacology*; D010269:Paraquat / Q000494:pharmacology*; D010396:Penicillamine / Q000494:pharmacology*; D010944:Plants / Q000187:drug effects / Q000378:metabolism*; D013482:Superoxide Dismutase
chemical_list: D002614:Chelating Agents; D003300:Copper; D013482:Superoxide Dismutase; D010396:Penicillamine; D010269:Paraquat