versão impressa ISSN 0074-0276
Mem. Inst. Oswaldo Cruz v.85 n.4 Rio de Janeiro out./dez. 1990
Freeze-fracture study of Trichomonas vaginalis
Universidade Federal do Rio de Janeiro, Instituto de Biofísica Carlos Chagas Filho, Departamento de Parasitologia e Biofísica. laboratório de Ultraestrutura Celular e Microscopia, Brasil
The freeze-fracture technique was used to analyse the organization of the plasma membrane, as well as membranes of cytoplasmic organelles, of the pathogenic protozoan Trichomonas vaginalis. Rosettes formed by 4 to 14 intramembranous particles were seen on the fracture faces of the membrane lining the anterior flagella as well as in fracture faces of the plasma membrane enclosing the anterior region of the protozoan and in cytoplasmic organelles. Special organization of the membrane particles were also seen in the region of association of the recurrent flagellum to the cell body.