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1 July 2005 Bypassing the Midgut Results in Development of Plasmodium berghei Oocysts in a Refractory Strain of Anopheles gambiae (Diptera: Culicidae)
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Abstract

The L35 strain of Anopheles gambiae Giles was genetically selected for its ability to melanize and kill malaria parasites. A wide range of Plasmodium species are subject to this response when orally ingested, including the rodent malaria, P. berghei. However, when we directly injected P. berghei into the hemocoel, we found that parasites developed normally to the oocyst stage. This work suggests that the parasite melanization response depends on the interaction of the ookinetes and the midgut. This result is surprising because it contrasts with a genetically validated model system, where injection of CM-Sephadex beads directly into the hemocoel results in bead melanization.

Susan M. Paskewitz and Lei Shi "Bypassing the Midgut Results in Development of Plasmodium berghei Oocysts in a Refractory Strain of Anopheles gambiae (Diptera: Culicidae)," Journal of Medical Entomology 42(4), (1 July 2005). https://doi.org/10.1603/0022-2585(2005)042[0712:BTMRID]2.0.CO;2
Received: 28 December 2004; Accepted: 17 March 2005; Published: 1 July 2005
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