Reversible Effects of Toxin from Helminthosporium maydis Race T on Oxidative Phosphorylation by Mitochondria from Maize.

@article{Bednarski1977ReversibleEO,
  title={Reversible Effects of Toxin from Helminthosporium maydis Race T on Oxidative Phosphorylation by Mitochondria from Maize.},
  author={M A Bednarski and S Izawa and R P Scheffer},
  journal={Plant physiology},
  year={1977},
  volume={59 4},
  pages={540-5}
}
Host-selective toxin from Helminthosporium maydis race T inhibited oxidative phosphorylation (AT(32)P formation) and stimulated ATPase activity by mitochondria from male-sterile (T) but not from normal (N) cytoplasm maize (Zea mays L.). Toxin increased the rate of NADH oxidation, but succinate oxidation was slightly, and malate-pyruvate oxidation was strongly inhibited as the associated ATP formation was abolished. There was a 1-minute lag before toxin gave maximal stimulation of NADH oxidation… CONTINUE READING