Studies on CN--insensitive respiration in plant roots III. Induction of CN--insensitive respiration with low concentrations of respiratory inhibitors |
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Authors: | Kano, Hiromi Kumazawa, Kikuo |
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Affiliation: | Faculty of Agriculture, University of Tokyo Tokyo, Japan |
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Abstract: | Induction of CN-insensitive respiration with low concentrationsof respiratory inhibitors was studied. If roots were treatedwith 103 M CN for 96 hr, the plants died, whilethose treated with 104 M CN showed healthy growth. O2 uptake in untreated rice and wheat roots showed a negativeresponse to 102 M CN to a considerable extent.On the other hand, pretreatment with 104 M CNfor more than 6 hr did not greatly affect respiratory rate,but made respiration insensitive to 102 M CN.A similar induction of CN-insensitivity was also broughtabout with 104 and 103 M H2S and 104 MNaN3. (Received July 6, 1971; ) |
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