Studies of mitochondrial migration in Physarum polycephalum I. : Reversible induction of mitochondrial migration and its Inhibition by cytochalasin B

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Mitochondrial movement in a microplasmodium of Physarum polycephalum was studied by light microscopy using acid fuchsin staining techniques. The mitochondria were dispersed almost evenly in the microplasmodium of Physarum polycephalum in highly aerobic cultures but when the microplasmodia were transferred from the highly aerobic culture to less aerobic culture, the mitochondria migrated toward the peripheral area of the microplasmodium and located themselves on a peripheral cytoplasm. Once this peripheral localization was established in the less aerobic culture, shift to a highly aerobic culture induced a reversion. This mitochondrial movement was reversibly inhibited by cytochalasin B at a concentration of 10^<-4> M, suggesting that contractile proteins are essential for this mitochondrial migration.
日本植物生理学会の論文