Capacity of mosquitoes to transmit malaria depends on larval environment.
Capacity of mosquitoes to transmit malaria depends on larval environment.
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DOI：
10.1186/s13071-014-0593-4
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发表时间：
2014-12-14
影响因子：
3.2
通讯作者：
Thomas MB
中科院分区：
文献类型：
--
作者：
Moller-Jacobs LL;Murdock CC;Thomas MB
全变态昆虫的成虫特征，如繁殖和生存，可以通过幼虫发育过程中经历的条件来塑造。这些“遗留”效应不仅影响个体的生活史和适应性，而且还可以影响昆虫宿主和寄生虫之间的相互作用。尽管如此，幼虫条件对昆虫传播的人类、野生动物和植物疾病的影响仍然知之甚少。我们使用斯氏按蚊和啮齿类疟疾，约氏疟原虫，调查幼虫栖息地的质量是否影响成年蚊子的传病能力。在两种饮食条件下饲养幼虫;一组接受通常用于群体维持的饮食（0.3 mg/个体/天的Tetrafin鱼食），而另一组接受减少的食物饮食（0.1 mg/个体/天）。在羽化后，向成虫提供具有感染性的血液饲料。我们评估了饮食对一系列幼虫和成虫特征的影响，包括幼虫发育时间和存活率，成虫出现的数量，成虫的体型和存活率，生殖营养周期长度和交配成功率。我们还估计了幼虫饮食对寄生虫感染率和成年蚊子内的生长动力学的影响。幼虫取食方式影响幼虫的存活和发育，以及成蚊的大小、繁殖成功率和存活率。幼虫的饮食也影响了初始疟原虫感染（卵囊阶段）和寄生虫复制的强度，但在卵囊或子孢子阶段的总体感染率没有差异。总之，综合效应导致在70%的低食物处理中媒介能力（蚊子种群的传播潜力的量度）相对降低。这项研究强调需要考虑幼虫阶段的环境变化，以更好地了解传播动力学和控制病媒传播的疾病。
Adult traits of holometabolous insects such as reproduction and survival can be shaped by conditions experienced during larval development. These “carry-over” effects influence not only individual life history and fitness, but can also impact interactions between insect hosts and parasites. Despite this, the implications of larval conditions for the transmission of human, wildlife and plant diseases that are vectored by insects remain poorly understood. We used Anopheles stephensi mosquitoes and the rodent malaria, Plasmodium yoelii yoelii, to investigate whether quality of larval habitat influenced vectorial capacity of adult mosquitoes. Larvae were reared under two dietary conditions; one group received a diet commonly used for colony maintenance (0.3 mg/individual/day of Tetrafin fish food) while the other group received a reduced food diet (0.1 mg/individual/day). Upon emergence, adults were provided an infectious blood feed. We assessed the effects of diet on a range of larval and adult traits including larval development times and survival, number of emerging adults, adult body size and survival, gonotrophic cycle length, and mating success. We also estimated the effects of larval diet on parasite infection rates and growth kinetics within the adult mosquitoes. Larval dietary regime affected larval survival and development, as well as size, reproductive success and survival of adult mosquitoes. Larval diet also affected the intensity of initial Plasmodium infection (oocyst stage) and parasite replication, but without differences in overall infection prevalence at either the oocyst or sporozoite stage. Together, the combined effects led to a relative reduction in vectorial capacity (a measure of the transmission potential of a mosquito population) in the low food treatment of 70%. This study highlights the need to consider environmental variation at the larval stages to better understand transmission dynamics and control of vector-borne diseases.
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影响因子：
6.7
作者：
Dong Y;Aguilar R;Xi Z;Warr E;Mongin E;Dimopoulos G
通讯作者：
Dimopoulos G
影响因子：
1.5
作者：
ANDERSSON, IH
通讯作者：
ANDERSSON, IH
影响因子：
5.7
作者：
CLEMENTS, AN;PATERSON, GD
通讯作者：
PATERSON, GD
DOI：
10.1098/rspb.2007.1497
发表时间：
2008-02-22
影响因子：
4.7
作者：
Alto, Barry W.;Lounibos, L. Philip;Reiskind, Michael H.
通讯作者：
Reiskind, Michael H.
影响因子：
4.8
作者：
Alto, BW;Lounibos, LP;Juliano, SA
通讯作者：
Juliano, SA