PHYSIOLOGICAL AND MORPHOLOGICAL-CHARACTERISTICS OF THE SEX-PHEROMONE DETECTING SYSTEM IN MALE CORN STEMBORERS, CHILO-PARTELLUS (LEPIDOPTERA, PYRALIDAE)
PHYSIOLOGICAL AND MORPHOLOGICAL-CHARACTERISTICS OF THE SEX-PHEROMONE DETECTING SYSTEM IN MALE CORN STEMBORERS, CHILO-PARTELLUS (LEPIDOPTERA, PYRALIDAE)
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DOI：
10.1016/0022-1910(94)00086-v
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发表时间：
1995-02-01
影响因子：
2.2
通讯作者：
LOFQVIST, J
中科院分区：
文献类型：
--
作者：
HANSSON, BS;BLACKWELL, A;LOFQVIST, J
通过电生理学和电子显微镜技术研究了雄性玉米螟 Chilo patellus (Swinhoe) 的性信息素特异性触角感受器。触角电测量表明，两种信息素成分（Z）-11-十六烯醛和（Z）-11-十六烯醇与第三种潜在信息素成分（Z）-10-十五烯醛一起引起最高反应。在单感器测量中鉴定了两种生理类型的检测信息素的毛形感器，在一种感器类型（I型）中，一个以大动作电位振幅为特征的受体神经元对（Z）-11-十六烯醛做出反应，而一个具有小尖峰振幅的神经元对（Z）-11-十六烯醇作出反应，该感器类型中存在的受体神经元也存在 对雌性 C, patellus 信息素腺中产生的其他类似信息素的化合物做出反应。在第二种感器类型（II 型）中，单个受体神经元专门对第四种潜在信息素成分（Z）-9-十四烯醛做出反应。形态学研究证实了不同类型毛形感器的存在。观察到含有一到三个受体神经元的毛感器。然而，这些感觉器类型不能根据外部形态来区分。对玉米茎螟触角功能和形态的研究结果提供了相对非特异性信息素检测受体神经元的第一个例子。该研究还证实了雄性吡啶虫触角上形态不同的毛状感器亚型的模式，
Sex pheromone specific antennal sensilla of the male corn stemborer, Chilo partellus (Swinhoe), were studied by electrophysiological and electronmicroscopical techniques. Electroantennographic measurements showed that the two pheromone components, (Z)-11-hexadecenal and (Z)-11-hexadecenol, elicited the highest responses together with a third potential pheromone component, (Z)-10-pentadecenal. Two physiological types of pheromone detecting sensilla trichodea were identified in the single sensillum measurements, In one sensillum type (type I), a receptor neuron characterized by a large action potential amplitude responded to (Z)-11-hexadecenal, and a neuron with a small spike amplitude responded to (Z)-11-hexadecenol, The receptor neurons present in this sensillum type also responded to other pheromone-like compounds produced in the female C, partellus pheromone gland. In a second sensillum type (type II), a single receptor neuron responded exclusively to (Z)-9-tetradecenal, a fourth potential pheromone component.The morphological investigation confirmed the presence of different types of sensilla trichodea. Sensilla trichodea containing one-to-three receptor neurons were observed. These sensillar types could however not be distinguished based on external morphology.The results from the investigation of antennal function and morphology in the corn stemborer, provides one of the first examples of relatively non-specific pheromone detecting receptor neurons. The study also confirms the pattern of morphologically distinct sensillum trichodeum subtypes on male pyralid antennae,