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contractile vacuole

   Also found in: Medical, Encyclopedia, Wikipedia, Hutchinson 0.03 sec.
contractile vacuole
n.
A membrane-bound organelle found in certain protists that pumps fluid in a cyclical manner from within the cell to the outside by alternately filling and then contracting to release its contents at various points on the surface of the cell. It functions in maintaining osmotic equilibrium.


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cruzi, the etiologic agent of Chagas disease, and Peter Rohloff showed that this protein is translocated to the contractile vacuole upon hypo-osmotic stress.
New and reemerging infectious diseases. (Conference Summary) by Docampo, Roberto / Emerging Infectious Diseases
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