摘要: Locomotion of plasmodia up to several m2 in size and with a thickness mm is by migration 1 cm/hr, even under conditions starvation for many days. The basis this considerable mass transport are the oscillating contractile movements plasmodial strands, namely, their ectoplasmic tubes, which contain force-generating cytoplasmic actomyosin fibrils. Plasmodial strands length more than 5 cm can be isolated from plasmodium measured tensiometrically respect longitudinal activities.