La cinétique de la vacuole contractile chez Amoeba proteus: effets de la lumière panchromatique

Abstract
The effects of panchromatic illumination at 0.8, 6.7, 122, 436, and 835 W/m2 on the contractile vacuole of Amoeba proteus were measured. At a level as low as 122 W/m2, a gradual deterioration of vacuolar performance is noted: extended cycles, slow or partial systole, plateaux, inhibition of coalescence, etc. Pseudosystole, observed for the first time, supports our hypothesis that osmotic losses oppose vacuolar growth.