THE ROLE OF APANTELES-GLOMERATUS VENOM IN THE DEFENSIVE RESPONSE OF ITS HOST, PIERIS-RAPAE-CRUCIVORA
THE ROLE OF APANTELES-GLOMERATUS VENOM IN THE DEFENSIVE RESPONSE OF ITS HOST, PIERIS-RAPAE-CRUCIVORA
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DOI：
10.1016/0022-1910(86)90050-8
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发表时间：
1986-01-01
影响因子：
2.2
通讯作者：
KITANO, H
中科院分区：
文献类型：
--
作者：
KITANO, H
本文的目的是重新检验绒茧蜂（Apanteles glomeratusvenom）毒液作为抵抗宿主松粉蝶（Pieris raiscrucivora）血细胞包囊作用的手段的实验数据，并提出一个假设。小球蚴逃避宿主的包囊反应。去除毒器的寄生蜂在2龄寄主幼虫体内产卵后2d内，大部分卵被3龄幼虫包裹。虽然注射寄生蜂侧输卵管花萼液的成熟卵被包裹，但注射花萼液和A.肾小球能够避免包囊。这些和其他额外的结果提供了证据表明，毒液器官材料的A。结球是抑制寄生蜂1 ~ 2日龄卵在寄主体内包囊的重要因素。由于肾小球外覆一层纤维状的外层，可能是粘多糖，寄生蜂的毒液很容易与这层纤维联合收割机。毒液和卵表面物质可能协同作用，在卵表面作为一种促黑抑制因子，并可能以某种方式抑制血细胞对Apanastapanis卵的反应能力。毒液对宿主血细胞（颗粒细胞或浆细胞）的丝状伪足或板状伪足的伸长、伸展和收缩以及宿主血淋巴的黑化没有影响。
It is my purpose in this paper to re-examine the experimental data onApanteles glomeratusvenom as means of resistance to the haemocytic encapsulation of the host,Pieris rapae crucivoraand to postulate a hypothesis concerning the means by whichA. glomeratuseggs evade the host's encapsulation reaction. Most of the eggs deposited in 2nd-instar host larvae by the parasitoid from which the venom apparatus was removed were encapsulated in 3rd-instar larvae within 2 days after oviposition. Although mature eggs injected with calyx fluid obtained from lateral oviducts of the parasitoid were encapsulated, the eggs injected with the calyx fluid plus venom ofA. glomeratuswere able to avoid the encapsulation. These and other additional results present evidence that the venom apparatus material ofA. glomeratusis an important factor in suppressing the encapsulation of 1- or 2-day old eggs of the parasitoid in the host.Since the eggs ofA. glomeratusare coated with a fibrous outer layer, probably mucopolysaccharides, the venom of the parasitoid may readily combine with the layer. The venom and egg-surface material may synergistically act as an encapsulation-inhibiting factor at the egg surface and may in some way suppress the ability of haemocytes to react againstApanteleseggs.The venom had no influence on the elongation or spreading as well as of retraction of the filopodia or lamellipodia of host's haemocytes (granular cells or plasmatocytes) and on the haemolymph melanization of the host.