Hogg J C, Hurd H
Department of Biological Sciences, Keele University.
Parasitology. 1995 Dec;111 ( Pt 5):555-62. doi: 10.1017/s0031182000077027.
Anopheles stephensi mosquitoes showed a reduction in fecundity over 3 successive gonotrophic cycles, after becoming infected with Plasmodium yoelii nigeriensis. This effect could be observed at high oocyst burdens (> 75) or at low oocyst burdens (mean of 4.36). Mean bloodmeal size of the infected mosquitoes was significantly reduced only when feeding upon a mouse with a high gametocytaemia and the conversion of the bloodmeal into eggs by the infected mosquitoes was disrupted. Patterns of infected mosquito mortality, over the 3 gonotrophic cycles, varied with severity of infection. Although in 1 case increased mortality and decreased bloodmeal size may have affected fecundity, this could not have accounted for all of the observed fecundity reduction. We propose that other, unknown parasite related factors, are involved.
感染约氏疟原虫尼日尔株后，斯氏按蚊在连续3个生殖营养周期中繁殖力下降。在高卵囊负荷（>75）或低卵囊负荷（平均4.36）时均可观察到这种效应。仅当感染蚊子吸食高配子血症小鼠的血液时，其平均吸血量才显著减少，且感染蚊子将吸食的血液转化为卵的过程受到干扰。在3个生殖营养周期中，感染蚊子的死亡率模式随感染严重程度而变化。虽然在1例中死亡率增加和吸血量减少可能影响了繁殖力，但这并不能解释观察到的所有繁殖力下降情况。我们认为还涉及其他未知的与寄生虫相关的因素。
