中华按蚊感染马来丝虫幼虫后生殖力、生殖营养周期及寿命变化的实验研究  

VARIATIONS IN REPRODUCTIVE CAPACITY, GONOTROPHIC CYCLE AND LONGEVITY OF ANOPHELES SINENSIS INFECTED BY BRUGIA MALAY I LARVAE

作　　者：卢艳如[1] 苏寿泜[1] 

机构地区：[1]河南医科大学寄生虫学教研室

出　　处：《中国寄生虫学与寄生虫病杂志》1991年第1期24-27,共4页Chinese Journal of Parasitology and Parasitic Diseases

摘　　要：以膜饲法给中华按蚊饲以含不同密度微丝蚴的血食,蚊体内丝虫的感染率和感染度随血食中微丝蚴密度50、100、150和200mf/20μl的升高而上升。幼丝虫的成熟率和实验感染指数在血食中微丝蚴密度较高时(200mf/20μl)有所降低。微丝蚴密度为50～150mf/20μl时,对蚊的生殖力、生殖营养周期及寿命基本上无影响,甚至产卵量有所增加,寿命有所延长;密度为200mf/20μl时才有一定程度的影响。因而认为,“马来丝虫-中华按蚊”是相互适应的“病原-媒介”系统。Under the experimental conditions of 26±10℃, relative humidity 70-80%, 100±20 Lux and photoperiod 16 hours/day and using a membrane feeding method, the development of filerial larvae and the variations in reproductive capacity, gonotrophic cycle and longevity of An. sinensis infected with microfilariae of Bmgia malayi were observed. The infection rate and infection intensity of filarial larvae in An. sinensis increased with the microfilarial density in the blood meal from 50 to 150 mf/20μl. The mature rate and 1EI decreased when the density rose to 200 mg/20μl. The concentration ratio of mf in blood by An. sinensis was 1.2-1.4.In the 3rd gonotrophic cycle, the feeding ratio of infected mosquitoes became lower when the mf density rose to 150mf/20Al, but the infection of filarial larvae did not affect the number of oviposition, the regularity of egg-production activity and the hatching rate of eggs, while the quantity of egg-production increased when the mf density was 150mf/ 20μl. The egg-production rate, and gonotrophic cycle were not basically influenced by fil-.arial larvae infection. The multifeeding ratio was 16.7-48.4% in An. sinensis.The longevity of An. sinensis was extended by infection with mf density of 100mf/ 20Mμl and shortened in infection with mf density of 200 mf/20μl.The authors conclude that 'Brwgia malayi-Anophelesj sinensis' is a highly adapted 'pathogen-vector 'system.

关 键 词：中华按蚊 马来丝虫幼虫 生殖力 

分 类 号：R384.1[医药卫生—医学寄生虫学]