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首页> 外文期刊>Arthropod Structure & Development >The gustatory sensilla on the endophytic ovipositor of Odonata
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The gustatory sensilla on the endophytic ovipositor of Odonata

机译：蜻蜓草内生产卵器上的味觉传感器

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摘要

The present paper aims at describing the fine structure of coeloconic sensilla located on the cutting valves of the endophytic ovipositor of two Odonata species, the anisopteran Aeshna cyanea (Aeshnidae) and the zygopteran Ischnura elegans (Coenagrionidae), by carrying out parallel investigations under SEM and TEM. In both species these coeloconic sensilla are innervated by four unbranched neurons forming four outer dendritic segments enveloped by the dendrite sheath. One dendrite terminates at the base of the peg forming a well developed tubular body, while the other three enter the peg after interruption of the dendrite sheath. The cuticle of the peg shows an apical pore and a joint membrane. This last feature, together with the tubular body and the suspension fibers, represent the mechanosensory components of the sensillum while the pore and the dendrites entering the peg allow chemoreception. The ultrastructural organization of these coeloconic sensilla is in agreement with the one reported for insect gustatory sensilla. Our investigation describes for the first time typical insect gustatory sensilla in Odonata. Electrophysiological and behavioral studies are needed to verify the role that these structures can perform in sensing the egg-laying substrata
机译：本文旨在通过在SEM和SEM下进行平行研究，来描述位于两个蜻蜓目（Aisnidae）和拟翅目Ischnura elegans（Coenagrionidae）两种蜻蜓目（Odonata）内生卵子产卵器切割瓣上的腔锥感官的精细结构。透射电镜在这两个物种中，这些腔锥感觉神经都由四个直链神经元支配，形成四个被树枝状树皮包裹的外部树突状节段。一个树突终止于桩的底部，形成一个发达的管状体，而其他三个树突在树突鞘中断后进入桩。钉的角质层显示出顶孔和关节膜。最后的特征与管状体和悬浮纤维一起代表了感觉的机械感官成分，而进入钉子的孔和树突则允许化学感受。这些腔圆锥形的感官的超微结构与报道的昆虫味觉感官的一致。我们的调查首次描述了Odonata中典型的昆虫味觉感官。需要进行电生理学和行为学研究，以验证这些结构在感知产卵基质中所起的作用

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