Defense reactions of Drosophila euronotus larvae against the hymenopterous parasite Pseudeucoila bochei.
Defense reactions of Drosophila euronotus larvae against the hymenopterous parasite Pseudeucoila bochei.
复制标题
果蝇幼虫对膜翅目寄生虫 Pseudeucoila bochei 的防御反应。
DOI：
10.1016/0022-2011(70)90160-6
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发表时间：
1970
影响因子：
3.4
通讯作者：
A. Nappi
中科院分区：
文献类型：
--
作者：
A. Nappi
在果蝇幼虫中，大量膜翅目寄生虫 Pseudeucoila bocheido 的卵无法孵化，并且许多寄生虫幼虫无法发育超过第一阶段。该宿主中的寄生虫死亡并不是由于昆虫和其他无脊椎动物针对内部后生动物寄生虫所特有的包囊反应。从宿主身上解剖并用相差显微镜检查的死亡寄生虫都没有被血细胞包裹。大多数死亡的寄生虫卵类似于新产的卵，几乎没有或没有明显的分化。一些死去的寄生虫幼虫上沉积了色素，大概是黑色素。由于血细胞被认为直接负责昆虫色素的形成，因此认为不同类型的血细胞反应可有效抑制色素的形成。博切伊。对感染期间宿主幼虫血细胞的定量研究表明，足细胞和卵细胞的百分比发生了显着变化。这些变化的重要性以及酚氧化酶系统在D的防御反应中的可能作用。讨论了欧洲的情况。
In larvae ofDrosophila euronotuslarge numbers of eggs of the hymenopterous parasitePseudeucoila bocheido not hatch, and many of the parasite larvae fail to develop beyond the first stage. Parasite mortality in this host is not due to encapsulation reactions that are characteristic of insects and other invertebrates against internal metazoan parasites. None of the dead parasites dissected from their hosts and examined with phase-contrast microscopy was seen enveloped by hemocytes. Most of the dead parasite eggs resembled newly laid eggs with little or no differentiation evident. On some dead parasite larvae pigment, presumably melanin, had been deposited. Since hemocytes are considered to be directly responsible for pigment formation in insects, a different type of hemocytic response was considered to be operative to suppress the development ofP. bochei. Quantitative studies of the hemocytes of host larvae during infection showed marked changes in the percentages podocytes and oencytoids. The significance of these changes and a possible role of the phenoloxidase system in the defense reactions ofD. euronotusare discussed.