Taxonomy: Class Blastocystea
Animal: Blastocystis hominis 10 17.jpg
Sites: Gut
Blastocystis hominis - granular form. The avacuolar form changes to a multi-vacuolar form and then a central vacuolar form and then a granular form (all 5-20 microns with 1-4 nuclei) when cultured or passed in faeces. The vacuolar forms were thought to be possibly the typical and only forms of B.hominis but they are not the forms in the colon. The granular form is similar to the Vacuolar form apart from the presence of granules which vary in contents. L-lipid. (EM by Deb Stenzel).

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