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康氏微孢子虫(微孢子虫纲:微孢子科)的宿主特异性,康氏微孢子虫是尖音库蚊(双翅目:蚊科)的一种多态性微孢子虫寄生虫。

Host specificity of Amblyospora connecticus (Microsporida: Amblyosporidae), a polymorphic microsporidian parasite of Aedes cantator (Diptera: Culicidae).

作者信息

Andreadis T G

出版信息

J Med Entomol. 1989 May;26(3):140-5. doi: 10.1093/jmedent/26.3.140.

DOI:10.1093/jmedent/26.3.140
PMID:2724310
Abstract

Amblyospora connecticus Andreadis, a microsporidian parasite of the brown saltmarsh mosquito, Aedes cantator (Coquillett), was successfully transmitted to Ae. atropalpus (Coquillett), Ae. epactius Dyar and Knab, Ae. sierrensis (Ludlow), and Ae. triseriatus (Say) following larval exposure to spores from the intermediate copepod host, Acanthocyclops vernalis (Fischer). The microsporidium underwent normal vegetative growth and multiplication in fat body, muscle, and Malpighian tubule tissues of all four alternate mosquito hosts but produced spores only in female Ae. epactius. However, in no alternate host was A. connecticus able to infect the ovaries and complete its life cycle via transovarial transmission, thus indicating a high degree of specificity for Ae. cantator. Fifteen other mosquito species in Aedes, Anopheles, Culex, Culiseta, and Psorophora also were tested and found to be nonsusceptible.

摘要

连接微孢子虫(Amblyospora connecticus Andreadis)是棕色盐沼蚊(伊蚊属的康氏伊蚊,Aedes cantator (Coquillett))的一种微孢子虫寄生虫,在幼虫接触中间桡足类宿主春季棘角剑水蚤(Acanthocyclops vernalis (Fischer))的孢子后,它成功地传播到了阿氏伊蚊(Ae. atropalpus (Coquillett))、埃氏伊蚊(Ae. epactius Dyar和Knab)、内华达伊蚊(Ae. sierrensis (Ludlow))和三带伊蚊(Ae. triseriatus (Say))体内。这种微孢子虫在所有四种替代蚊宿主的脂肪体、肌肉和马氏管组织中进行正常的营养生长和繁殖,但仅在雌性埃氏伊蚊中产生孢子。然而,在任何替代宿主中,连接微孢子虫都无法感染卵巢并通过经卵传递完成其生命周期,因此表明其对康氏伊蚊具有高度特异性。还对伊蚊属、按蚊属、库蚊属、脉毛蚊属和骚蚊属中的其他15种蚊子进行了测试,发现它们均不敏感。

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