Reversible Inhibition of Chloroplast Movement by Cytochalasin B in the Green Alga Mougeofia

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Science  19 May 1972:
Vol. 176, Issue 4036, pp. 808-809
DOI: 10.1126/science.176.4036.808


Light-oriented chloroplast movement is reversibly inhibited by cytochalasin B. The photoperception is not influenced by this inhibitor. These results support the assumption that contractile protein fibrils are essential for this intracellular movement.