Cyclic Photophosphorylation in Vivo and its Relation to Photosynthetic CO(2)-Fixation |
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Authors: | Tanner W Loffler M Kandler O |
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Institution: | Institut fur Angewandte Botanik der Technischen, Hochschule, Munchen, Germany. |
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Abstract: | Salicylaldoxime (2 × 10−3m and less) inhibits cyclic photophosphorylation in intact Chlorella cells severely whereas photosynthetic O2-evolution and 14CO2-fixation is hardly affected. Cyclic photophosphorylation in vivo was measured by following anaerobic light dependent glucose uptake. A similar difference in susceptibility has been observed with carbonylcyanide-p-trifluoromethoxyphenylhydrazone. Various controls exclude the possibility that the difference in inhibition was caused by differing experimental conditions or, in the case of glucose assimilation, by an inhibition of a reaction other than photophosphorylation. |
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