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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Ref ID : 3746

Roger E. Lindberg and Eugene Cleveland Bovee; Induction of Phagocytosis and "Cannibalism" by the Giant Ameba, Chaos carolinensis. J.Protozool. 23(2):333-336, 1976

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It is evident from studies of cellular recognition resulting in phagocytosis by Chaos carolinensis that cilia from certain protozoa serving as prey, e.g. Tetrahymena pyriformis, influence phagocytic action. Glutaraldehyde-fixed C. carolinensis to which cilia, isolated from Tetrahymena, are attached by the benzidine reaction, are englufed by living Chaos but not digested. Fixed Chaos without attached cilia are not englufed. Adding increased numbers of cilia from Tetrahymena progressively inhibits the rate at which Chaos phagocytizes Paramecium caudatum, suggesting blockage by the cilia of contact sites normally available to initiate phagocytosis of Paramecium.