文献类型：期刊文献

中文题名：白蜡吉丁肿腿蜂触角感受器的超微结构

英文题名：Ultrastructure of the Antennal Sensilla of Parasitic Wasp,Sclerodermus pupariae(Hymenoptera:Bethylidae)

作者：魏可[1] 王小艺[1]

第一作者：魏可

机构：[1]中国林业科学研究院森林生态环境与自然保护研究所、国家林业和草原局森林保护学重点实验室,北京100091

年份：2023

卷号：36

期号：2

起止页码：1-11

中文期刊名：林业科学研究

外文期刊名：Forest Research

收录：CSTPCD;;Scopus;北大核心:【北大核心2020】；CSCD:【CSCD2023_2024】；

基金：国家自然科学基金项目(31901319)。

语种：中文

中文关键词：触角;感受器;扫描电镜;寄生蜂

外文关键词：antenna;sensillum;scanning electron microscope;parasitic wasp

分类号：S476

摘要：[目的 ]触角是昆虫最重要的嗅觉器官,触角感受器是昆虫嗅觉识别的最小形态学单元。为了明确多种林木蛀干类吉丁虫和天牛的重要天敌白蜡吉丁肿腿蜂的触角感受器种类和形态。[方法 ]利用扫描电子显微镜对雌雄蜂触角及其感受器超微结构进行了观察,并进一步分析了各类感受器在不同性别成蜂触角上的分布规律和数量。[结果 ]白蜡吉丁肿腿蜂触角呈膝状,雌雄蜂触角均为13节,包括柄节、梗节和11个鞭小节,雄蜂触角显著长于雌蜂。在雌雄蜂触角上共发现7类11种感受器,包括2种刺形感器、3种毛形感器、1种锥形感器、1种板形感器、2种栓锥形感器、1种腔锥形感器和1种鳞形感器。雌蜂触角上存在10种感受器,其中毛形感器I型和II型、锥形感器为其特有。雄蜂触角上存在8种感受器,其中毛形感器III型为其特有。毛形感器I型、锥形感器、板形感器、栓锥形感器(I和II型)和腔锥形感器各自数量在同一性别的不同个体间一致,而其余类型感受器的数量在不同个体间不等。在雌雄蜂共有的感器类型中,刺形感器I型、栓锥形感器I型在雌蜂触角上的数量较雄蜂更多;而板形感器、栓锥形感器II型在雄蜂触角上的数量较雌蜂更多;腔锥形感器的数量在雌雄蜂之间相同。毛形感器、锥形感器、板形感器和腔锥形感器表面有微孔,是典型的化学感器。[结论 ]本研究解析了白蜡吉丁肿腿蜂触角感受器的超微结构,发现雌雄蜂触角感受器的种类、数量和分布特征均存在典型的性二型现象,这些结果为后续研究该寄生蜂的化学通讯机制和雌雄蜂的嗅觉行为差异奠定了基础。
[Objective]Antennae are the most important olfactory organs of insects,and the antennal sensilla are the fundamental morphological units in their olfactory recognitions.To understand the variety and morphology of the antennal sensilla of Sclerodermus pupariae(Hymenoptera:Bethylidae),an important natural enemy of many buprestids and longhorned beetles.[Method]The ultrastructures of antennae and sensilla of male and female parasitoid adults were investigated by scanning electron microscope,and the distribution and quantity of sensilla on female and male antennae were analyzed.[Result]The antennae of both male and female parasitoids were knee shaped,and they were consistently constituted with scape,pedicel,and 11 flagellomeres.The antennae of male parasitoids were much longer than those of female wasps.There were seven categories with 11 types of sensilla on the antennae of S.pupariae,including two types of sensilla chaetica(Ch1 and Ch2),three types of sensilla trichodea(Tr1,Tr2,and Tr3),one type of sensilla basiconica(Ba),one type of sensilla placodea(Pl),two types of sensilla styloconica(St1 and St2),one type of sensilla coeloconica(Co),and one type of sensilla squamiforma(Sq).Ten types of sensilla were observed on the antennae of female,and the sensilla Tr1,Tr2,and Ba were restrictedly distributed on female′s antennae.There were eight types of sensilla on the antennae of male,and the sensilla Tr3 were only observed in males.There were six types of sensilla showed consistent quantities across individuals of the same sex,including sensilla Tr1,Ba,Pl,St1,St2,and Co.For other five types of sensilla,their numbers varied among individuals in both females and males.The number of sensilla Ch1 and St1 on the antennae of female adults was significantly higher than that on male adults.Nevertheless,the number of sensilla Pl and St2 on the antennae of male adults was significantly higher than that on female adults.The number of sensilla Co was the same between female and male parasitoids.The sensilla Tr1,Tr2,Tr3,Ba,Pl,and Co were six typical chemosensilla because multiple wall pores could be found on their surfaces.[Conclusion]We analyzed the ultrastructure of antennal sensilla of S.pupariae,and found that the types,quantities,and distributions of antennal sensilla between female and male parasitoids have typical sexual dimorphism,which will provide fundamental data for the future investigations on the chemoreception mechanism and olfactory behavior differences between the male and female parasitoids.