Horizontal and vertical transmission of a Nosema sp (Microsporidia) from Lymantria dispar (L.) (Lepidoptera: Lymantriidae)
Horizontal and vertical transmission of a Nosema sp (Microsporidia) from Lymantria dispar (L.) (Lepidoptera: Lymantriidae)
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DOI：
10.1016/j.jip.2006.11.003
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发表时间：
2007-05-01
影响因子：
3.4
通讯作者：
Linde, Andreas
中科院分区：
文献类型：
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作者：
Goertz, Doerte;Solter, Leellen F.;Linde, Andreas
舞毒蛾Lymantria dispar L.毒蛾科毒蛾属Lymantriidae，是落叶乔木的重要食叶害虫，在种群密度较高时，是一种重要的经济害虫。然而，爆发种群受到昆虫病原体形式的一些缓和影响，包括几种微孢子虫。本研究通过实验室实验研究了一种分离自L.在德国的施魏因堡发现了一种dispar;该分离株仅感染幼虫宿主的丝腺，并在较小程度上感染幼虫宿主的马氏管。经口接种后8 ~ 15天，潜伏期结束，孢子持续释放于感染幼虫的粪便中，直至化蛹。排除粪便饲养笼导致水平传播下降58%。25只感染的幼虫中只有2只的丝含有微孢子虫孢子。当幼虫接触到人工污染了微孢子虫的蛛丝时，5%被感染。没有发现这种寄生虫通过性传播或经卵（包括经卵）传播的证据。(c)2006年爱思唯尔公司All rights reserved.
The gypsy moth, Lymantria dispar L. (Lepidoptera, Lymantriidae), a serious defoliator of deciduous trees, is an economically important pest when Population densities are high. Outbreaking populations are, however, subject to some moderating influences in the form of entomopathogens, including several species of microsporidia. In this study, we conducted laboratory experiments to investigate the transmission of an unusual Nosema sp. isolated from L. dispar in Schweinfurt, Germany; this isolate infects only the silk glands and, to a lesser extent, Malpighian tubules of the larval host. The latent period ended between 8 and 15 days after oral inoculation and spores were continuously released in the feces of infected larvae until pupation. Exclusion of feces from the rearing cages resulted in a 58% decrease in horizontal transmission. The silk of only 2 of 25 infected larvae contained microsporidian spores. When larvae were exposed to silk that was artificially contaminated with Nosema sp., 5% became infected. No evidence was found for venereal or transovum (including transovarial) transmission of this parasite. (c) 2006 Elsevier Inc. All rights reserved.