[Last Modified: ]
[Brachiola spp.] [Encephalitozoon cuniculi] [Encephalitozoon hellem] [Encephalitozoon intestinalis (syn. Septata intestinalis)] [Enterocytozoon bieneusi] [Nosema spp.] [Pleistophora sp.] [Trachipleistophora spp.] [Vittaforma corneae (syn. Nosema corneum)]

Transmission electron micrograph of a microsporidian spore with an extruded polar tubule inserted into a eukaryotic cell.  The spore injects the infective sporoplasms through its polar tubule.

Figure contributed by Dr. Massimo Scaglia, Laboratory of Clinical Parasitology, Institute of Infectious Diseases, University-IRCCS San Matteo, Pavia, Italy.