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Effects of Temperature on Sporogonic Development of Plasmodium berghei

Jerome P. Vanderberg and Meir Yoeli
The Journal of Parasitology
Vol. 52, No. 3 (Jun., 1966), pp. 559-564
DOI: 10.2307/3276326
Stable URL: http://www.jstor.org/stable/3276326
Page Count: 6
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Effects of Temperature on Sporogonic Development of Plasmodium berghei
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Abstract

The effect of temperature on the sporogonic cycle of Plasmodium berghei was studied in two experimental mosquito vectors. Complete sporogonic development takes place in Anopheles quadrimaculatus at 16 to 21 C, and in A. stephensi at 16 to 24 C. The upper temperature limits for development appear to be the lowest reported for any plasmodia. The sporogonic development of P. berghei is apparently adapted to the narrow temperature range which is found in the microclimate of its natural vector. High temperatures have a more rapidly damaging effect on the early than on the late stages of sporogony. Mosquitoes exposed to 28 C for as short a time as 4 hr following their infective blood meal fail to develop sporozoites. If this high temperature treatment is withheld until the parasite completes the early stages of sporogonic development at a favorable temperature, exposure to at least 3 days of 28 C is necessary to induce visible damage. The mode of action of high temperature damage is unknown at present.

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