ABNORMAL METAMORPHOSIS IN SATURNIID MOTHS INFECTED BY A MICROSPORIDIAN
ABNORMAL METAMORPHOSIS IN SATURNIID MOTHS INFECTED BY A MICROSPORIDIAN
复制标题
DOI：
10.1038/180713b0
复制
发表时间：
1957-01-01
期刊：
影响因子：
64.8
通讯作者：
WALTERS, VA
中科院分区：
文献类型：
--
作者：
FINLAYSON, LH;WALTERS, VA
昆虫变态过程中的异常可能是由寄生虫感染引起的。本文对一种微孢子虫进行了研究。pernyi 3，许多受感染的动物中有17只未能正常变形。受影响最严重的是H.盲肠它们保留了一些蛹的结构。腹部的尖端和生殖器是蛹的形状。腹部和胸部其余部分的角质层是蛹和成虫类型的马赛克，每只眼睛的底部是一条无色素的带。这种异常可以通过在发育中的成年体的侧咽体不活跃的时期引入活跃的侧咽体或保幼激素（幼激素）来实验性地产生4，5。在两个A中观察到较小的影响。由受感染的幼虫形成的pernyipupepulum。每只的腹部都有白色的幼虫型刚毛，幼虫前足的位置有分叉。最后，有成虫的两个物种ofAntheraea有补丁的蛹型角质层。
DEVIATIONS from the normal course of metamorphosis in insects may be caused by parasitic infections1,2. In studies on a microsporidian of the genusNosema, found inHyalophora(Platysamia)cecropiaand afterwards sub-cultured inAntheraea polyphemusandA. pernyi3, seventeen of the many infected animals failed to metamorphose normally. The most severely affected were adults ofH. cecropia. They retained a number of pupal structures. The tip of the abdomen and the genitalia were pupal in form.; the cuticle of the rest of the abdomen and of the thorax was a mosaic of pupal and adult types and at the base of each eye was an unpigmented band. Such abnormalities can be produced experimentally by introducing active corpora allata or juvenile hormone (neotenin) into the developing adult during the period when its own corpora allata are inactive4,5. Lesser effects were seen in twoA. pernyipupæ that had been formed from infected larvæ. Each had white, larval-type setæ scattered over the abdomen, and crotchets in the position of the larval prolegs. Finally, there were adults of both species ofAntheraeawhich had patches of pupal type cuticle.