Involvement of fibrinogen specific binding in erythrocyte aggregation |
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Authors: | Lominadze David Dean William L |
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Affiliation: | Microbiology (BIOSI 1, Main Building), Cardiff University, P.O. Box 915, Cardiff, UK. lloydd@cf.ac.uk |
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Abstract: | Respiratory oscillations in continuous yeast cultures can be accounted for by cyclic energization of mitochondria, dictated by the demands of a temperature-compensated ultradian clock with a period of 50 min. Inner mitochondrial membranes show both ultrastructural modifications and electrochemical potential changes. Electron transport components (NADH and cytochromes c and c oxidase) show redox state changes as the organisms cycle between their energized and de-energized phases. These regular cycles are transiently perturbed by uncouplers of energy conservation, with amplitudes more affected than period; that the characteristic period is restored after only one prolonged cycle, indicates that mitochondrial energy generation is not part of the clock mechanism itself, but is responding to energetic requirement. |
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