A light and electron microscopic study of sarcocysts in a horse.

The research study looks into the structure of sarcocysts in a horse, employing both light and electron microscopic examinations. It identifies unique features such as microtubules within the parasitophorous vacuole and explores their arrangement.

Overview of the Study

• The research aims to investigate the structure of sarcocysts in horses. It uses light and electron microscopic examinations, exploring the dimensions of the cysts and their unique features.

Findings from Light Microscopic Examination

• The study revealed that the maximum dimensions of the cysts were 136 X 990 micrometers.
• Additionally, the cyst walls were found to be striated and its thickness varied between 1 to 3 micrometers.

Findings from Electron Microscopic Examination

• The electron microscopic examination showed that the cyst wall was formed by villus-like protrusions of the primary wall of the parasitophorous vacuole.
• A unique feature identified in this study was the presence of microtubules within the parasitophorous vacuole.
• The arrangement of these microtubules was such that thirty-four to fifty-five of them extended from the apical tips and sides of each villus and passed through the ground matrix to form junctions with the outer pellicle membrane of bradyzoites and metrocytes present at the margins of the cyst.

Dimensions of Bradyzoites

• Apart from studying the structure of the cysts, the research also looked into the bradyzoites within them.
• The average dimensions were found to be 3.2 X 14.2 micrometers.