长角血蜱哈氏器对几种气味物质的触角电位试验  

Electroantennographic response of the Haller’s organ of Haemaphysalis longicornis(Acari:Ixodidae)to several odor volatiles

作　　者：崔莹莹 王俊刚[2] 孙琬琬 王君[1] 吴海霞[1] 刘起勇[1] CUI Ying-ying;WANG Jun-gang;SUN Wan-wan;WANG Jun;WU Hai-xia;LIU Qi-yong(State Key Laboratory of Infectious Disease Prevention and Control,WHO Collaborating Centre for Vector Surveillance and Management,Department of Vector Biology and Control,National Institute for Communicable Disease Control and Prevention,Chinese Center for Disease Control and Prevention,Beijing 102206,China;College of Agriclture,Shihezi University,Shihezi,Xinjiang Uygur Autonomous Region 832000,China;Urumqi Center for Disease Control and Prevention,Urumqi,Xinjiang Uygur Autonomous Region 830026,China)

机构地区：[1]中国疾病预防控制中心传染病预防控制所媒介生物控制室,传染病预防控制国家重点实验室,世界卫生组织媒介生物监测与管理合作中心,北京102206 [2]石河子大学农学院,新疆石河子832000 [3]乌鲁木齐市疾病预防控制中心,新疆乌鲁木齐830026

出　　处：《中国媒介生物学及控制杂志》2022年第5期622-626,共5页Chinese Journal of Vector Biology and Control

基　　金：国家重点研发计划(2016YFC1202002);国家科技重大专项(2017ZX10303404-006-002)。

摘　　要：目的测定饥饿长角血蜱雌成蜱哈氏器对几种气味物质的电生理反应,为进一步研究蜱对宿主的选择机制提供基础。方法利用玻璃电极触角电位仪测定饥饿1和4个月长角血蜱雌成蜱哈氏器对冰醋酸、氨水以及昆明小鼠、新西兰兔、绵羊3种动物血液、粪便提取液和毛皮提取液的触角电位(EAG)反应值;数据间差异用SPSS 22.0软件进行t检验和方差分析。结果饥饿长角血蜱雌成蜱哈氏器除对浓度为0.10μl/ml的冰醋酸EAG反应值较低(0.000 mV)外,对1.00、10.00和100.00μl/ml的冰醋酸和氨水均引起不同程度电生理反应,且均随着浓度的增大而增大。饥饿1个月的蜱哈氏器对不同浓度的冰醋酸和氨水的EAG值均大于饥饿4个月蜱的EAG值,但冰醋酸仅在1.00、10.00和100.00μl/ml、氨水在1.00、100.00μl/ml浓度,饥饿不同时间的蜱哈氏器对其EAG值差异有统计学意义(均P<0.05)。饥饿1和4个月的蜱哈氏器对100.00μl/ml氨水的EAG反应值最大,分别为(2.729±0.129)和(2.239±0.285)mV,各浓度的氨水所产生的EAG值均高于各浓度的冰醋酸,且差异均有统计学意义(均P<0.05)。饥饿1个月的长角血蜱成蜱哈氏器对昆明小鼠、新西兰兔和绵羊血液的EAG反应值无统计学意义(F_(血)=0.002,P=0.998);3种动物中,蜱对绵羊的粪便提取液和毛皮提取液EAG反应值均较大,分别为(0.758±0.070)和(0.914±0.150)mV,且与其他2种动物粪便提取液和毛皮提取液的EAG反应值差异均有统计学意义((F_(粪)=11.587,P=0.001;F_(皮)=14.237,P<0.001)。结论相同浓度条件下,长角血蜱雌成蜱哈氏器对氨水的反应比对冰醋酸的反应更加敏感,且饥饿1个月的蜱哈氏器对氨水和冰醋酸的EAG反应强于饥饿4个月的蜱;雌成蜱哈氏器对绵羊的粪便提取液和毛皮提取液的EAG反应均强于昆明小鼠、新西兰兔。Objective To measure the electrophysiological response of the Haller’s organ of starving adult female Haemaphysalis longicornis ticks to several odor volatiles,and to provide a basis for further research on the host selection mechanism of ticks.Methods Electroantennogram with glass electrodes was used to measure the electroantennography(EAG)values of the Haller’s organ of adult female H.longicornis ticks to glacial acetic acid,ammonia,and the blood,fecal,and fur extracts of Kunming mice,New Zealand rabbits,and sheep after 1 or 4 months of starvation,and the differences in data were analyzed for t test and analysis of variance using SPSS 22.0 software.Results Except for a relatively low EAG response value(0.000 mV)to glacial acetic acid with a concentration of 0.10μl/ml,the Haller’s organ of starving adult female H.longicornis showed varying degrees of electrophysiological reactions to glacial acetic acid and ammonia at concentrations of 1.00,10.00,and 100.00μl/ml,and the degree of electrophysiological reactions increased with the increasing concentrations;The EAG values at different concentrations of glacial acetic acid and ammonia of Haller’s organ of ticks in 1 month of starvation were higher than those of ticks in 4 months of starvation,but only EAG values at 1.00,10.00,and 100.00μl/ml of glacial acetic acid,and 1.00 and 100.00μl/ml of ammonia were significantly different between ticks with different times of starvation(all P<0.05).The ticks with starvation for 1 and 4 months showed the highest EAG response value to 100μl/ml ammonia,i.e.,(2.729±0.129)mV and(2.239±0.285)mV,respectively,and the EAG response values to each concentration of ammonia were significantly higher than those to each concentration of glacial acetic acid(all P<0.05).The H.longicornis ticks after starvation for 1 month had similar EAG response values to the blood of Kunming mice,New Zealand rabbits,and sheep(F=0.002,P=0.998),and as for the three kinds of animals,the ticks had relatively high EAG response values to the fecal a

关 键 词：长角血蜱 气味 触角电位 

分 类 号：R384.4[医药卫生—医学寄生虫学]