SUSCEPTIBILITY OF SPORES OF THE MICROSPORIDIAN NOSEMA-ALGERAE TO SUNLIGHT AND GERMICIDAL ULTRAVIOLET-RADIATION

被引:16
作者
KELLY, JF [1 ]
ANTHONY, DW [1 ]
机构
[1] USDA SEA, INSECTS AFFECTING MAN & ANIM RES LAB, GAINESVILLE, FL 32604 USA
关键词
Anopheles albimanus; biological control; Microsporidia; Nosema algerae; spores; susceptibility to; sunlight; ultraviolet;
D O I
10.1016/0022-2011(79)90097-1
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
Spores of the microsporidian Nosema algerae exposed to 1, 2, and 4 hr of sunlight and 121 μW/cm2 of germicidal ultraviolet light were fed to first-instar Anopheles albimanus. Twenty days after feeding, the incidence and intensity of infection (spores/mosquito) were recorded from adult mosquitoes. While sunlight-treated spores showed no significant decline in incidence of infection after 1-, 2-, and 4-hr exposures, intensity of infection decreased significantly after the 2- and 4-hr exposures. Incidence of infection of mosquitoes fed bactericidal ultraviolet light-treated spores declined 48.2, 76.2, and 99.9% after 1-, 2-, and 8-min exposures, respectively. Measured by intensity of infection, activity of bactericidal light-treated spores decreased 87.2% after 1 min, 91.7% after 2 min, and 99.9% after 8 min. Levels of radiation required to inactivate spores of N. algerae fell within the range reported for other Microsporidia. © 1979.
引用
收藏
页码:164 / 169
页数:6
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