Sex-specific antennal sensory system in the ant Camponotus japonicus: structure and distribution of sensilla on the flagellum
Sex-specific antennal sensory system in the ant Camponotus japonicus: structure and distribution of sensilla on the flagellum
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DOI：
10.1007/s00441-009-0863-1
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发表时间：
2009-10-01
影响因子：
3.6
通讯作者：
Nishikawa, Michiko
中科院分区：
文献类型：
--
作者：
Nakanishi, Aki;Nishino, Hiroshi;Nishikawa, Michiko
触角是蚂蚁高度复杂的化学通讯系统的至关重要的组成部分。然而，我们对蚂蚁触角上的感觉系统的组织的理解，从外周受体到中央和输出系统，知之甚少。因此，我们使用扫描电子和共聚焦激光显微镜创建了几乎完整的木蚁所有类型群体成员触角鞭毛上所有类型外部感器的结构、感觉神经元数量和分布模式的地图。日本弓背蚁。根据感器的外表皮结构，将其分为七种类型：腔顶感器、腔锥感器、壶腹感器、锥形感器、囊状感器-I、囊状感器-II和刺状感器。触角神经的逆行染色使我们能够计算出不同类型感器中的感觉神经元的数量：3个在腔顶感器中，3个在腔锥感器中，1个在壶腹感器中，超过130个在锥形感器中，50-60个在candid-I感器中，8-9个在candid-II感器中。在工蚁和未交配的蚁后中有锥形感器，但在雄蚁中没有。在本研究中，首次发现了一种新的体腔顶感受器（pueculum hygro-和thermoreceptible）。腔头形感器、腔锥形感器和壶腹形感器成簇分布于触角的鞭毛节上。每根鞭毛上的感器总数在未交配的蚁后中约为9000个，在工蜂中约为7500个，在雄蜂中约为6000个。这是第一份报告提出全面的触角在蚂蚁的感觉地图。
The antennae are a critically important component of the ant's highly elaborated chemical communication systems. However, our understanding of the organization of the sensory systems on the antennae of ants, from peripheral receptors to central and output systems, is poorly understood. Consequently, we have used scanning electron and confocal laser microscopy to create virtually complete maps of the structure, numbers of sensory neurons, and distribution patterns of all types of external sensilla on the antennal flagellum of all types of colony members of the carpenter ant Camponotus japonicus. Based on the outer cuticular structures, the sensilla have been classified into seven types: coelocapitular, coeloconic, ampullaceal, basiconic, trichoid-I, trichoid-II, and chaetic sensilla. Retrograde staining of antennal nerves has enabled us to count the number of sensory neurons housed in the different types of sensilla: three in a coelocapitular sensillum, three in a coeloconic sensillum, one in an ampullaceal sensillum, over 130 in a basiconic sensillum, 50-60 in a trichoid-I sensillum, and 8-9 in a trichoid-II sensillum. The basiconic sensilla, which are cuticular hydrocarbon-receptive in the ant, are present in workers and unmated queens but absent in males. Coelocapitular sensilla (putatively hygro- and thermoreceptive) have been newly identified in this study. Coelocapitular, coeloconic, and ampullaceal sensilla form clusters and show biased distributions on flagellar segments of antennae in all colony members. The total numbers of sensilla per flagellum are about 9000 in unmated queens, 7500 in workers, and 6000 in males. This is the first report presenting comprehensive sensillar maps of antennae in ants.