Taxonomy: Class Blastocystea
Animal: Blastocystis hominis 5 22.jpg
Sites: Gut
Blastocystis hominis - Cyst from fresh stool - TEM. Below the thick surface coat is a multilayered cyst wall surrounding the cell which is 3.7- 5 microns wide. Lipid-like and glycogen inclusions are present in the condensed cytoplasm and there is usually only one nucleus with typical condensed crescentic chromatin band. Mitochondria have an electron-opaque matrix and few cristae. This is the form thought to the transmissible stage which survives in the external environment protected by the cyst wall. (EM by Deb Stenzel).

First Picture | Previous Picture | Next Picture | Last Picture