Experimental protothecosis in labortory animals.

Attemps were made to produce protothecosis in laboratory animals by intratesticular, intraperitoneal, intravenous and subcutaneous inoculation of Prototheca zopfii, P. wickerhamii and P stagnorta. Only intratesticular injection successfully caused infection, and of the inoculated protothecae, only P. zopfii and P. wickerhamii were recovered in culture from testicular material.