Effects of Beauveria bassiana on Survival, Blood-Feeding Success, and Fecundity of Aedes aegypti in Laboratory and Semi-Field Conditions
Effects of Beauveria bassiana on Survival, Blood-Feeding Success, and Fecundity of Aedes aegypti in Laboratory and Semi-Field Conditions
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DOI：
10.4269/ajtmh.2012.11-0455
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发表时间：
2012-04-01
影响因子：
3.3
通讯作者：
Ryan, Peter A.
中科院分区：
文献类型：
--
作者：
Darbro, Jonathan M.;Johnson, Petrina H.;Ryan, Peter A.
真菌Beativeria bassiana在实验室条件下降低了埃及伊蚊的寿命，但在现实环境条件下对生存，吸血行为和繁殖力的影响尚未得到测试。成年，女性。埃及伊蚊感染B.在实验室条件下，对100头白僵菌（F1-277）的吸血成功率和繁殖力进行了监测。真菌感染减少了30%的蚊子与人的接触。在实验室中，每只雌性动物一生的生育力降低（平均值+/- SD）29.3 +/- 8.6个卵;卵批量和活力不受影响。还在澳大利亚北方昆士兰州的5米× 7米× 4米半野外笼中测试了苔藓虫的存活、吸血行为和繁殖力。在半野外条件下，真菌感染使大笼子中的蚊子存活率降低了59-95%，而在小笼子中则降低了61-69%。一项半野笼试验显示，吸血减少了80%;第二项试验显示无显著影响。感染并不影响大笼子里的繁殖力。球孢白僵菌可以杀死并可能减少Ae的叮咬。在半野外条件下和实验室中对埃及人进行了研究。这些结果进一步支持了B的使用。白僵菌是一种很有潜力的生防真菌。埃及人。
The fungus Beativeria bassiana reduces Aedes aegypti longevity in laboratory conditions, but effects on survival, blood-feeding behavior, and fecundity in realistic environmental conditions have not been tested. Adult, female Ae. aegypti infected with B. bassiana (F1-277) were monitored for blood-feeding success and fecundity in the laboratory. Fungal infection reduced mosquito-human contact by 30%. Fecundity was reduced by (mean +/- SD) 29.3 +/- 8.6 eggs per female per lifetime in the laboratory; egg batch size and viability were unaffected. Mosquito survival, blood-feeding behavior, and fecundity were also tested in 5 meter x 7 meter x 4 meter semi-field cages in northern Queensland, Australia. Fungal infection reduced mosquito survival in semi-field conditions by 59-95% in large cages compared with 61-69% in small cages. One semi-field cage trial demonstrated 80% reduction in blood-feeding; a second trial showed no significant effect. Infection did not affect fecundity in large cages. Beauveria bassiana can kill and may reduce biting of Ae. aegypti in semi-field conditions and in the laboratory. These results further support the use of B. bassiana as a potential biocontrol agent against Ae. aegypti.