Effects of carbon dioxide-bicarbonate mixtures on oxidative phosphorylation by cauliflower mitochondria.
1. Carbon dioxide-bicarbonate mixtures markedly inhibited oxidation and phosphorylation rates of mitochondria prepared from cauliflower. Inhibition occurred with succinate, malate, citrate, isocitrate and NADH as substrates. 2. Indophenol-reductase systems with malate, succinate, isocitrate and NADH as substrates were inhibited by 5% and 15% carbon dioxide. Cytochrome c oxidase was not inhibited by 15% carbon dioxide.
D001639:Bicarbonates / Q000494:pharmacology*; D002245:Carbon Dioxide / Q000494:pharmacology*; D002951:Citrates / Q000378:metabolism; D066298:In Vitro Techniques; D007700:Kinetics; D008293:Malates / Q000378:metabolism; D008928:Mitochondria / Q000378:metabolism*; D009243:NAD / Q000378:metabolism; D010085:Oxidative Phosphorylation / Q000187:drug effects*; D010945:Plants, Edible / Q000166:cytology; D013053:Spectrophotometry; D013386:Succinates / Q000378:metabolism
D001639:Bicarbonates; D002951:Citrates; D008293:Malates; D013386:Succinates; D009243:NAD; D002245:Carbon Dioxide