Abstract:
:Insects rely heavily on olfaction to locate habitat, mates, and oviposition sites, while odorant molecules and the antennal olfactory sensory cells of insects are two indispensable components of olfactory response. Our previous work identified the sex pheromones and volatile compounds derived from host plant of Dendrolimus tabulaeformis Tsai et Liu, a serious economic pest of pines in northern China. However, little is known about the olfactory system of D. tabulaeformis, especially in females. To make a better understanding of the D. tabulaeformis olfactory response, we investigated the structure, innervation, numbers, and distribution of sensilla on the antennae of male and female moth, based on scanning and transmission electron microscopy. The pinniform antennae of this moth bear five types of sensilla: trichoid (TS), basiconica (BS), styloconic (StS), and chaetica (ChS) sensilla, and belt-type structures (BTSs). The BTSs are hollow and are not chemical sensilla. The ChSs occur on the scape. StS contain dendrite sheaths and four dendrites containing microtubules in their cores. The BS contents are continuous with that in the subsegments. The TSs were sexually dimorphic and could be divided into 12 subtypes based on dendrite number and form. TS1-4 contained two, three, or four dendrites and were similar in both sexes. TS 5-8 and TS 9-12 occurred only on male and female antenna, respectively. We discussed the possible functions of these sensilla.
journal_name
Microsc Res Techjournal_title
Microscopy research and techniqueauthors
Zhang S,Zhang Z,Kong X,Wang Hdoi
10.1002/jemt.22134subject
Has Abstractpub_date
2013-01-01 00:00:00pages
50-7issue
1eissn
1059-910Xissn
1097-0029journal_volume
76pub_type
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