Electron microscopic study of the effect of zinc on Tritrichomonas foetus | Zendy

Marlene Benchimol | Zendy; João Carlos de Aquino Almeida | Zendy; Ulysses Lins | Zendy; NoéMia Rodrigues Goncalves | Zendy; Wanderley de Souza | Zendy

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Electron microscopic study of the effect of zinc on Tritrichomonas foetus

Author(s) -

Marlene Benchimol,

João Carlos de Aquino Almeida,

Ulysses Lins,

NoéMia Rodrigues Goncalves,

Wanderley de Souza

Publication year - 1993

Publication title -

antimicrobial agents and chemotherapy

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.07

H-Index - 259

eISSN - 1070-6283

pISSN - 0066-4804

DOI - 10.1128/aac.37.12.2722

Subject(s) - tritrichomonas foetus , zinc , organelle , transmission electron microscopy , electron microscope , ultrastructure , biology , chemistry , biophysics , biochemistry , fetus , nanotechnology , materials science , physics , anatomy , pregnancy , genetics , organic chemistry , optics

At concentrations of 3.1 to 24 mM, zinc inhibits the multiplication of and kills the pathogenic protozoan Tritrichomonas foetus. Transmission electron microscopy showed that the hydrogenosome, a organelle which is involved in the metabolism of pyruvate and the site of formation of molecular hydrogen, constitutes the main site of the initial effect of zinc. The hydrogenosomal vesicle increases its electron density and dimension. Electron spectroscopy imaging and the electron energy loss spectrum showed the presence of zinc, calcium, and oxygen in the electron-dense areas of the hydrogenosome.

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