Summary and Conclusions
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1. A modified medium for the cultivation of bacteria-free ciliates and flagellates has been described.
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2. Immune sera against various species of Protista have been produced by injecting the living organisms into laboratory animals. These sera contain thermostable immobilizing antibodies.
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3. The cross-immobilization and the cross-absorptive technics have been applied to the flagellates.
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4. Colpidium campylum, Colpidium striatum, and Glaucoma pyriformis have again been shown to be very closely-related antigenically.
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5. Khawkinea halli and Khawkinea ocellata have been shown to be antigenically different.
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6. Serological tests have indicated that the Astasias, Euglenas, and Khawkineas are closely related. The taxonomic significance of these findings has been discussed.
- Received July 1, 1941.
- Copyright © 1941 by The American Association of Immunologists, Inc.
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