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Graphs of contracting glycerinated Amoeba proteus

Abstract

GLYCERINATED Chaos-Proteus amoebae preserve their normal shape, but will contract after washing and introduction of physiological concentrations of ATP, Ca2+, and Mg2+ (ref. 1). We have recorded the motion of activated glycerinated amoebae (amoeboid models) in a manner such that endoplasmic motions, shape changes, and contractile sites are pictorially graphed by the model during its contraction. Our findings contradict the frontal-zone contraction hypothesis, but do not unequivocally support the ectoplasmic tube contraction theory.

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RINALDI, R., OPAS, M. Graphs of contracting glycerinated Amoeba proteus. Nature 260, 525–526 (1976). https://doi.org/10.1038/260525a0

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