摘要
【目的】通过对白蛾周氏啮小蜂雌、雄触角感受器超微结构的观察分析,可为了解昆虫触角的感受机制研究提供依据,为进一步探究各感受器内部结构、作用机制及相关功能奠定基础。【方法】利用扫描电镜观察雌、雄白蛾周氏啮小蜂触角感受器的形态结构、类型、数量和分布。共观察雌、雄蜂各10只,并对雌、雄触角感受器进行了详细描述、比较和分析。【结果】雌、雄蜂触角差异显著,雌蜂触角11节,雄蜂触角12节,且雄蜂触角柄节膨大。从雌、雄触角基部到末端,感受器的种类和数量呈逐渐增加的趋势。其中鞭节上的感受器数量最多、种类最丰富。从雌、雄蜂感受器种类上看,雌蜂比雄蜂多发现2种感受器,分别为腔锥形感器和乳状感器Ⅱ型。从雌、雄蜂感受器形态结构上看,雌蜂的毛形感器Ⅰ型比雄蜂更为细长。雄蜂的乳状感器Ⅰ型要明显比雌蜂长。新发现的乳状感器Ⅲ型其形态结构在雌、雄蜂上也有显著差异。从雌、雄蜂感受器的数量上看,雌蜂触角感受器总量约为雄蜂的2倍。毛型感器Ⅰ型、Ⅱ型、板状感器、刺形感器、乳状感器Ⅰ型、Ⅱ型的数量在雌、雄蜂触角上差异显著。雌蜂触角上数量最多的感受器为毛形感器Ⅰ型,雄蜂为毛形感器Ⅱ型。从感受器的分布上来看,毛形感器Ⅰ型在雌蜂触角鞭节各亚节皆有分布,但在雄蜂触角上多分布于索节,棒节少见。毛型感器Ⅱ型在雄蜂触角鞭节各亚节皆有分布,但在雌蜂触角上多见于棒节,索节上未见分布。【结论】雌、雄触角感受器性二型现象明显,感受器的形态结构、种类、数量和分布均有差异,推测其与雌、雄蜂触角感受器功能不同相关。
【Objective】The observation and analysis of the ultrastructure of the antennal sensilla of the male and female of Chouioia cunea(Hymenoptera:Eulophidae)can provide a basis for the research on the olfactory receptive mechanism of the C.cunea and lay a foundation for further exploring the internal structure,mechanism of action and related functions of each sensilla.【Method】Scanning electron microscopy was used to observe the morphological structure,type,number and distribution of antennal sensilla of the male and female.A total of 10 males and 10 females were observed,and their antennal sensilla were described,compared and analyzed in detail.【Result】The antennae of male and female were significantly different,with female of 11 sections,male of 12 sections,and male had swollen antennae scape.From the base of the antennae to the end of the antennae,the number and types of the sensilla increased gradually,among which the number and types of the sensilla on the flagellum were the most abundant.In terms of the types of the male and female sensilla,the female had two more sensilla than the male,which were sensilla mammilliformiaⅡand sensilla coeloconica.As for the morphological structure of the male and female sensilla,the sensilla trichodeaⅠof the female were longer than that of the male.The sensilla mammilliformiaⅠof the male was significantly longer than that of the female.The sensilla mammilliformiaⅢwas newly discovered in our study,and there were significant differences in the morphological structure between male and female.The number of antennal sensilla of the female was about twice that of the male.There were significant differences in the number of Sensilla trichodeaⅠ,Ⅱ,sensilla placodea,sensilla chaetica,sensilla mammilliformiaⅠandⅡbetween male and female.The most abundant sensilla on the female antennae were the sensilla trichodeaⅠ,while the sensilla trichodeaⅡhad the largest number on the male antennae.From the perspective of the distribution of sensilla,sensilla trichodeaⅠwas
作者
孙伊阳
覃东玉
潘丽娜
穆怡然
杨艺新
相伟芳
朱耿平
李敏
Sun Yiyang;Qin Dongyu;Pan Lina;Mu Yiran;Yang Yixin;Xiang Weifang;Zhu Gengping;Li Min(College of Life Science,Tianjin Normal University The Tianjin City Key Laboratory of Plant and Animal Resistant,Tianjin 300387;College of Life Science,Nankai University,Tianjin 300071)
出处
《林业科学》
EI
CAS
CSCD
北大核心
2020年第10期135-144,共10页
Scientia Silvae Sinicae
基金
国家自然科学基金项目(31702058,31201730)
天津市自然科学基金项目(17JCQNJC14900,18JCYBJC96300)。
关键词
白蛾周氏啮小蜂
触角感受器
寄生蜂
扫描电镜
性二型
Chouioia cunea
antennal sensilla
parasitoid
scanning electron microscope
sexual dimorphism
