. Pathogenic micro-organisms, including bacteria and Protozoa; a practical manual for students, physicians and health officers. ve more plant-like characteristics. Among the former is placed the Plasmodiophora brassicoB, Waro-nin, of historic interest in medicine because of the claims made fromtime to time that it or forms related may produce human tumors. The Plasmodiophora brassic^ is an intracellular parasite ofmembers of the Cruciferse, producing large tumors in their roots 548 PA THOGEXIC MICRO-ORGAXISMS. (fingers and toes, club-foot). When inoculated into experi-mental animals it produce
. Pathogenic micro-organisms, including bacteria and Protozoa; a practical manual for students, physicians and health officers. ve more plant-like characteristics. Among the former is placed the Plasmodiophora brassicoB, Waro-nin, of historic interest in medicine because of the claims made fromtime to time that it or forms related may produce human tumors. The Plasmodiophora brassic^ is an intracellular parasite ofmembers of the Cruciferse, producing large tumors in their roots 548 PA THOGEXIC MICRO-ORGAXISMS. (fingers and toes, club-foot). When inoculated into experi-mental animals it produces small granulomata, which finally spores taken in bv the macrophages under these conditions resem-ble some of the cell inclusions seen in the human malignant tumors,hence the reason for the belief that under certain conditions they mayhave an etiologic relationship. At present the idea is abandoned. The study of the Plasmodinphora, however, may be helpful to us incoming to an understanding of the nature of some of the pathogenicprotozoa, since it is so closely related to the rhizopoda. Material may Fig. 169.
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