Virulence of entomopathogenic fungi isolated from wild mosquitoes against Aedes aegypti

被引：1
作者：
Aguilar-Duran, Jesus A. [1 ]
Villarreal-Trevino, Cuauhtemoc [2 ]
Fernandez-Santos, Nadia A. [1 ,3 ]
Hamer, Gabriel L. [3 ]
Rodriguez-Perez, Mario A. [1 ]
机构：
[1] Inst Politecn Nacl, Lab Biomed Mol, Ctr Biotecnol Genom, Reynosa, Tamaulipas, Mexico
[2] Inst Nacl Salud Publ, Ctr Reg Invest Salud Publ, Tapachula, Chiapas, Mexico
[3] Texas A&M Univ, Dept Entomol, College Stn, TX USA
来源：
ENTOMOLOGICAL RESEARCH | 2023年 / 53卷 / 04期
关键词：
A; aegypti; Aspergillus tamarii; biological control; entomopathogenic fungi; BEAUVERIA-BASSIANA; METARHIZIUM-ANISOPLIAE; ASPERGILLUS-TAMARII; TOLYPOCLADIUM-CYLINDROSPORUM; DIPTERA-CULICIDAE; LARVAE DIPTERA; ALBOPICTUS; ANOPHELES; INFECTION; PATHOGENICITY;
D O I：
10.1111/1748-5967.12640
中图分类号：
Q96 [昆虫学];
学科分类号：
摘要：
The entomopathogenic fungi Metarhizium anisopliae and Beauveria bassiana are highly virulent control tools for insect pests and have been under evaluation for the control of globally important mosquito vectors such as Aedes aegypti. Here, we identified and isolated other virulent entomopathogenic fungi against Ae. aegypti. We collected 7 species of mosquitoes by human landing catch in 5 municipalities in Central and Northern Mexico and isolated 28 species of fungi. We harvested fungal conidia from six and assessed virulence against Ae. aegypti females. We observed variation in virulence of fungi in Ae. aegypti with the most virulent being Aspergillus tamarii, with a LT50 of 6.4 (+/- 0.65) days and the least virulent was Trichoderma euskadiense with a LT50 of 16.3 (+/- 1.5) days. Additional assays evaluated the impact of the fungi on Ae. aegypti fecundity and fertility and A. tamarii had the highest for both, resulting in 60% and 37% decrease, respectively. These results provide support for the potential utility of A. tamarii as an entomopathogenic control tool for the dengue vector, Ae. aegypti, pending further evaluations of environmental and nontarget safety.
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页码：158 / 166
页数：9
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