FINE-STRUCTURE OF TERMINAL ORGAN OF HOUSE-FLY LARVA, MUSCA-DOMESTICA L
FINE-STRUCTURE OF TERMINAL ORGAN OF HOUSE-FLY LARVA, MUSCA-DOMESTICA L
复制标题
DOI：
10.1007/bf00306874
复制
发表时间：
1972-01-01
期刊：
影响因子：
--
通讯作者：
AXTELL, RC
中科院分区：
文献类型：
--
作者：
CHUWANG, I;AXTELL, RC
用扫描和透射电子显微镜研究了家蝇幼虫Musca DomesticaL.的头叶末端器官。发现了六种不同类型的感器：（1）乳头感器，（2）凹坑感器，（3）斑点感器，（4）改良乳头感器，（5）旋钮感器和（6）scolopidium。乳头、凹坑、斑点和修饰的乳头感器具有接触化学感受器的基本结构，即不分枝的树突尖端通过单个开口暴露在外。然而，管状体是触觉刚毛的特征结构，也存在于一些树突尖端中。我们假设这些感觉器具有双重功能——接触化学感受和机械感受。旋钮感器的作用尚不清楚。存在于背部和末端器官的蜈蚣可能是压力探测器。所有感觉器的树突状纤毛区都有两个基体。两个基体（除蜈蚣外）均产生远端睫状微管和近端细根。
The terminal organs of the cephalic lobes of the house fly larva,Musca domesticaL., were studied by scanning and transmission electron microscopy. Six different types of sensilla were found: (1) papilla sensillum, (2) pit sensillum, (3) spot sensillum, (4) modified papilla sensillum, (5) knob sensillum, and (6) scolopidium. The papilla, pit, spot, and modified papilla sensilla have the essential structure of contact chemoreceptors,i.e., the unbranched dendritic tips are exposed externally through a single opening. However, a tubular body, which is a characteristic structure of tactile setae, is also present in some of the dendritic tips. We assume these sensilla serve a dual function—contact chemo- and mechanoreception. The role of the knob sensilla is obscure. The scolopidia present in the dorsal and the terminal organ are probably stress detectors. Two basal bodies occur in the dendritic ciliary region of all sensilla. Both of the basal bodies (except in the scolopidia) give rise to the distal ciliary microtubules as well as the proximal rootlets.