Pinocytosis inPlasmodium vinckei

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Abstract
Electron microscope studies on the erythrocytic stages of Plasmodium vinckei have shown that this parasite takes in the haemoglobin of the host cell in the same way as P. berghei. Haemoglobin is taken into peripheral pinocytosis channels; there is no evidence of digestion within the main food vacuole, nor has a cytostome been demonstrated. P. vinckei can be classified, therefore, according to its method of feeding, with P. berghei, P. coatneyi, P. gonderi, P. ovale, and P. vivax schwetzi, and it can be differentiated from the avian malarias and P. falciparum. The differences in the methods of food uptake exhibited by these two groups may also reflect a real difference in the way in which drugs are taken up.