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Oxidative and Phosphorylative Activities of Cytoplasmic Particles from Plant Tissue Cultures


MITOCHONDRIA have been established as the centres of respiratory and energy-forming reactions in the cell with a variety of plant tissues1 as well as animal tissues. Preliminary studies on respiration of plant tissue cultures aroused our interest as to the presence and function of such cytoplasmic particles in tissues cultivated in vitro, especially in relation to normal and diseased growth. No published report was observed on the isolation of functional subcellular structures from plant tissues cultivated in vitro. Therefore, experiments were made to separate cytoplasmic particles from normal and crown gall tomato tissue cultures, and to characterize their biochemical significance.

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    Hackett, D. P., ‘Intern. Rev. Cytol.’, 4, 143 (1955).

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    White, P. R., ‘Ann. Rev. Biochem.’, 11, 615 (1942).

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    Hildebrandt, A. C., Proc. U.S. Nat. Acad. Sci., 44, 353 (1958).

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    Hagihara, B., and Lardy, H. A., J. Biol. Chem. (in the press).

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    Laties, G. G., Plant Physiol., 28, 557 (1953). Brummond, D. O., and Burris, R. H., J. Biol. Chem., 209, 755 (1954).

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