Partial Inhibitory Effect of Plistophora culicis on the Sporogonic Cycle of Plasmodium cynomolgi in Anopheles Stephensi

Article metrics

Abstract

DURING some experimental work carried out on the cytology of early oocysts of Plasmodium cynomolgi in Anopheles stephensi an interesting observation was made. Three batches of laboratory-bred Anopheles stephensi were fed on a rhesus monkey (M. 172) infected with P. cynomolgi. Dissections of 4–10 mosquitoes on each subsequent day showed that the first and third batches of these mosquitoes were also infected with a microsporidian (Plistophora culicis). (Such infections have previously been described by Garnham1 and Canning2.) Nearly 50 per cent of the dissected mosquitoes showed a moderate infection of P. culicis in the first batch, a light infection of about 5 per cent in the second batch, and approximately 100 per cent with heavy infections of P. culicis in the third batch. A poor rate of infection by P. cynomolgi was found in the first and third batches of A. stephensi, and this was considered due to the partial inhibitory influence of P. culicis on the development of the oocysts in these mosquitoes. This view was supported by the findings of good oocysts counts in the mosquitoes dissected from batch two in which the P. culicis infections were very light.

Access options

Rent or Buy article

Get time limited or full article access on ReadCube.

from$8.99

All prices are NET prices.

References

  1. 1

    Garnham, P. C. C., Bull. World Health Org. Geneva, 15, Nos. 3, 4, 5 845 (1956).

  2. 2

    Canning, E. U., Rivista di Malariologia, 36, Nos. 1–3 (1957).

Download references

Author information

Rights and permissions

Reprints and Permissions

About this article

Cite this article

BANO, L. Partial Inhibitory Effect of Plistophora culicis on the Sporogonic Cycle of Plasmodium cynomolgi in Anopheles Stephensi . Nature 181, 430 (1958) doi:10.1038/181430a0

Download citation

Further reading

Comments

By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.