Survival effects of antibiotic exposure during the larval and adult stages in the West Nile virus vector Culex pipiens  

作　　者：Marta Garrigos Mario Garrido Manuel Morales-Yuste JosuéMartinez-de la Puente Jesus Veiga 

机构地区：[1]Faculty of Pharmacy,Department of Parasitology,University of Granada,Granada,Spain [2]CIBER de Epidemiologia y Salud Publica(CIBERESP),Madrid,Spain

出　　处：《Insect Science》2024年第2期542-550,共9页昆虫科学（英文版）

基　　金：financed by MCIN/AEI/10.13039/501100011033[grant number PID2020-118205GB-100];the Spanish Ministry of Science and Innovation[grant numbers PRE2021-098544 and FJC2021-048057-I];the Spanish Ministry of Universities[Margarita Salas and Maria Zambrano programs].

摘　　要：The ability of mosquitoes to transmit a pathogen is affected,among other factors,by their survival rate,which is partly modulated by their microbiota.Mosquito microbiota is acquired during the larval phase and modified during their development and adult feeding behavior,being highly dependent on environmental factors.Pharmaceutical residues including antibiotics are widespread pollutants potentially being present in mosquito breeding waters likely affecting their microbiota.Here,we used Culex pipiens mosquitoes to assess the impact of antibiotic exposure during the larval and adult stages on the survival rate of adult mosquitoes.Wild-collected larvae were randomly assigned to two treatments:larvae maintained in water supplemented with antibiotics and control larvae.Emerged adults were subsequently assigned to each of two treatments,fed with sugar solution with antibiotics and fed only with sugar solution(controls).Larval exposure to antibiotics significantly increased the survival rate of adult females that received a control diet.In addition,the effect of adult exposure to antibiotics on the survival rate of both male and female mosquitoes depended on the number of days that larvae fed ad libitum in the laboratory before emergence.In particular,shorter larval ad libitum feeding periods reduced the survival rate of antibiotic-treated adult mosquitoes compared with those that emerged after a longer larval feeding period.These differences were not found in control adult mosquitoes.Our results extend the current understanding of the impact of antibiotic exposure of mosquitoes on a key component of vectorial capacity,that is the vector survival rate.

关 键 词：ANTIBIOTICS avian malaria MICROBIOTA MOSQUITOES vector competence vector survival 

分 类 号：Q96[生物学—昆虫学]