| 摘要: |
| 报道了不同龄期、生物型、性别和生理状态的东亚飞蝗触角感受器外部形态和分布的扫描电镜观察结果。东亚飞蝗触角感受器有毛形、刺形、锥形、腔锥形及腔形5种类型。毛形感受器直立于触角表面，细长且顶端略弯曲，主要分布在触角第1－2节。刺形感受器直立于触角表面的表皮领中，顶端弯曲或不弯曲，在触角各节上呈均匀分布。锥形感受器粗短，直立于触角表面，其数量约占总数量的50％，集中分布在触角第10－20节。腔锥形感受器为1个锥状突起，着生于1个陷于表皮下的腔中，小锥表面有沟纹，顶端有小孔。腔形感受器为1个直径约3－4μm空腔，或者腔内有非常小的锥状感受器。腔锥形感受器和腔形感受器分布在触角第10节以后，在第10节以前分布很少。对感染微孢子虫的东亚飞蝗成虫触角感受器进行了观察，发现感受器分布并没有发生改变，但有些感受器出现畸形。 |
| 关键词: 东亚飞蝗 触角感受器 类型 外部形态 分布 农业害虫 |
| DOI： |
| 修订日期：2001-04-13 |
| 基金项目:教育部骨干教师资助项目(2001~2002) |
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| Fine Structure and Distribution of the Sensilla on the Antennae of Locusta migratoria manilensis |
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| Abstract: |
| There are five types of sensilla on the antennae of Locusta migratoria manilensis, namely, sensilla trichodae, sensilla chaetica, sensilla basiconica, sensilla coeloconica and sensilla cavity. Sensilla trichodae are slender and hairlike that inserted in the cuticle and only found on the surface of the scape and pedicel. Sensilla chaetica are similar but more robust and distributed uniformly on the antennae. Sensilla basiconia are also hairlike but very short and may be reduced to pegs or cones. The number of sensilla basiconica is 50 percents of the total number of the sensilla and they are concentrated on the antenna segments 10~20. On the other hand, the distribution of sensilla on the antennae of the locust infected with Nosema locustae is about the same as the healthy one. But the morphology of the sensilla has changed a little, mainly in the stripe on the surface of the antennae. |
| Key words: Locusta migratoria manilensis,antennal sensilla,type,structure,distribution |
