Antennal multiporous sensilla:: Their gustatory features for host recognition in female parasitic wasps (Insecta, Hymenoptera: Platygastroidea)

被引:60
作者
Isidoro, N
Romani, R
Bin, F
机构
[1] Univ Ancona, Dept Agr & Environm Biotechnol, I-60131 Ancona, Italy
[2] Univ Perugia, Dept Arboriculture & Plant Protect, I-06121 Perugia, Italy
关键词
accessory glands; multiporous plates; Platygastridae; Scelionidae; semiochemicals; ultrastructure;
D O I
10.1002/jemt.1183
中图分类号
R602 [外科病理学、解剖学]; R32 [人体形态学];
学科分类号
100101 ;
摘要
In parasitic wasps, various kinds of antennal plates have been interpreted as olfactory organs due to the presence of numerous pores. However, on the basis of ultrastructural investigations, some of these multiporous plates were revealed as being release sites of exocrine glands while others were postulated to have a gustatory function. Such sensilla, present only on female antennae, show unique features, found exclusively in Platygastroidea, with some differences between Scelionidae and Platygastridae. The cuticular apparatus consists of a short basiconic shaft with an apical multiporous area, the pores of which are covered by movable structures. The cellular components are made up of a remarkable number of sensory neurons, from 200 to 220, and an undefined number of sheath cells. These multiporous sensilla have tubular accessory glands that release their secretion through the socket sensillum only in scelionids. These morphological characters, combined with behavioral observations, strongly suggest a gustatory function, although electrophysiological studies are still needed to confirm this. A new terminology for antennal multiporous plates is discussed in relation to their different functions. (C) 2001 Wiley-Liss. Inc.
引用
收藏
页码:350 / 358
页数:9
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