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Document Type

Research

Abstract

A strain of Plasmodium relictum, isolated from a mourning dove, is being maintained by blood passage through pigeons. Studies concerning the periodicity and synchronicity of this organism indicate the length of the asexual cycle to be 24 hours correlated with a high degree of synchronicity. Segmentation occurs between 5 and 9 PM, with sporulation occurring between 5 AM and 1 PM. The pathogenicity of the strain to pigeons is moderate, with a tendency to kill several days after the crisis of infection has passed. Exoerythryocytic schizonts have been demonstrated in several of the birds that died, with these stages tending to affect the brain more than other organs. Young chickens, inoculated with infected pigeon blood, remained infected from four to ten days. However, duration of infection decreased with an increase in the age of the bird. Parasites did not develop in either six-week old or twelve-week old chickens. The taxonomic position of this particular strain of P. relictum is discussed.

Publication Date

1962

Journal Title

Proceedings of the Iowa Academy of Science

Volume

69

Issue

1

First Page

636

Last Page

644

Copyright

© Copyright 1962 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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