小地老虎雌蛾触角及幼虫头部感受器扫描电镜观察

doi:10.16380/j.kcxb.2016.12.007

昆虫学报 ›› 2016, Vol. 59 ›› Issue (12): 1340-1347.doi: 10.16380/j.kcxb.2016.12.007

小地老虎雌蛾触角及幼虫头部感受器扫描电镜观察

向玉勇^1,2, 孔丹丹², 刘同先¹, 张世泽^1,*

（1. 西北农林科技大学, 旱区作物逆境生物学国家重点实验室, 陕西杨凌 712100; 2. 滁州学院生物与食品工程学院, 安徽滁州 239000）

出版日期:2016-12-20 发布日期:2016-12-20

Observation of the sensilla on female adult antenna and larval head of Agrotis ypsilon (Lepidoptera: Noctuidae) with scanning electron microscope

XIANG Yu-Yong^1,2, KONG Dan-Dan², LIU Tong-Xian¹, ZHANG Shi-Ze^1,*

(1. State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, Shaanxi 712100, China; 2. School of Biology and Food Engineering, Chuzhou University, Chuzhou, Anhui 239000, China)

Online:2016-12-20 Published:2016-12-20

摘要/Abstract

摘要： 【目的】为了解小地老虎 Agrotis ypsilon (Rottemberg)雌蛾触角及幼虫头部感受器的种类、形态、数量和分布。【方法】利用扫描电镜技术观察了小地老虎雌蛾触角及5龄幼虫头部形态及触角和口器上的感受器。【结果】小地老虎雌蛾触角上共分布有5种类型的感受器，分别为毛形感器、刺形感器、腔锥形感器、耳形感器、锥形感器。5龄幼虫头部呈椭圆形，口器下口式，为咀嚼式口器，头部可见触角、单眼、蜕裂线、刚毛、唇基、额、上唇、上颚、下颚、下颚须、下唇、下唇须及吐丝器等结构；触角上着生1个毛形感器和4个锥形感器；上颚分布有1个毛形感器和1个刺形感器；在下颚及下颚须上共分布有3个毛形感器、3个刺形感器、4个锥形感器和1个栓锥形感器；下唇须上有1个栓锥形感器和1个锥形感器；吐丝器前方两侧有1对刺形感器。【结论】小地老虎雌蛾触角上的感受器比幼虫头部的多，推测雌蛾利用它们来完成寄主植物和产卵环境选择；幼虫口器附肢上的感受器具有味觉和嗅觉功能，幼虫利用它们判断食物的种类和适合性。

关键词: 小地老虎, 雌蛾触角, 幼虫头部, 感受器, 扫描电镜

Abstract: 【Aim】 To clarify the types, morphology, quantity and distribution of sensilla on the female adult antenna and larval head of Agrotis ypsilon. 【Methods】 The sensilla on female adult antenna and the head of the 5th instar larva of A. ypsilon were observed with scanning electron microscope. 【Results】 Five types of chemoreceptors, including sensillum trichodeum, sensillum chaeticum, sensillum coeloconicum, sensillum auricillicum and sensillum basiconicum, were found on female adult antenna of A. ypsilon. For the 5th instar larva of A. ypsilon, the head is oval and hypognathous with chewing mouthparts; the larval head comprises of antenna, ocelli, ecdysial line, setae, clypeus, frons, labrum, mandibles, maxillae, maxillary palpi, labium, labial palpi and fusula; one sensillum trichodeum and four sensilla basiconica were found on the antenna; one sensillum trichodeum and one sensillum chaeticum were found on the mandible, and three sensilla trichodea, three sensilla chaetica, four sensilla basiconica and one sensillum styloconicum were found on the maxilla and maxillary palpus; one sensillum styloconicum and one sensillum basiconicum were found on labial palpus, and one sensillum chaeticum was found on the front of each side of fusula. 【Conclusion】 The quantity of sensilla on female adult antenna of A. ypsilon is more than that on its larval head. It is supposed that female adults use these sensilla to choose host plants and oviposition environment. The sensilla on larval mouthparts are associated with gustation and olfaction, and larvae use them to judge the varieties and suitability of foods.

Key words: Agrotis ypsilon, female adult antenna, larval head, sensillum, scanning electron microscope

向玉勇, 孔丹丹, 刘同先, 张世泽. 小地老虎雌蛾触角及幼虫头部感受器扫描电镜观察[J]. 昆虫学报, 2016, 59(12): 1340-1347.

XIANG Yu-Yong, KONG Dan-Dan, LIU Tong-Xian, ZHANG Shi-Ze. Observation of the sensilla on female adult antenna and larval head of Agrotis ypsilon (Lepidoptera: Noctuidae) with scanning electron microscope[J]. Acta Entomologica Sinica, 2016, 59(12): 1340-1347.

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链接本文: http://www.insect.org.cn/CN/10.16380/j.kcxb.2016.12.007

http://www.insect.org.cn/CN/Y2016/V59/I12/1340

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小地老虎雌蛾触角及幼虫头部感受器扫描电镜观察

Observation of the sensilla on female adult antenna and larval head of Agrotis ypsilon (Lepidoptera: Noctuidae) with scanning electron microscope

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