| 宋月芹, 董钧锋, 孙会忠 *.双委夜蛾幼虫触角、口器感器的类型与分布[J].植物保护,2018,44(2):122-128. |
| 双委夜蛾幼虫触角、口器感器的类型与分布 |
| Types and distribution of sensilla on larval antennae and mouthparts of Athetis dissimilis |
| 投稿时间：2017-07-08 修订日期：2017-09-06 |
| DOI：10.16688/j.zwbh.2017258 |
| 中文关键词: 双委夜蛾 幼虫 感器 形态 扫描电子显微镜 |
| 英文关键词:Athetis dissimilis larva sensillum morphology scanning electron microscope |
| 基金项目:国家公益性行业(农业)科研专项(201303026); 国家自然科学基金(31701788); 河南科技大学博士启动费(4026-13480047) |
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| 中文摘要: |
| 双委夜蛾是近年在中国新发现的一种重要农业害虫。本研究通过扫描电子显微镜对双委夜蛾幼虫口器上的感器类型与分布特征进行观察, 并做了详细描述。双委夜蛾幼虫触角感器主要分布在梗节和鞭节。梗节包括3个锥形感器和2个刺形感器。鞭节包括3个锥形感器和1个栓锥形感器。双委夜蛾幼虫口器由上唇、上颚、下颚、舌、下唇五部分组成。上唇有6对刺形感器; 内唇有3对刺形感器、1对指形感器和1对内唇感器; 每个具齿的上颚外侧表面具有2个刺形感器; 下颚的感器主要密布在外颚叶和下颚须上, 每个外颚叶具有3个刺形感器、3个锥形感器和2个栓锥形感器; 下颚须具有8个锥形感器、1个指形感器和2个板形感器。下唇须具有1个栓锥形感器和1个锥形感器。另外, 通过与其他鳞翅目幼虫感器比较, 对这些感器的功能进行了分析。本研究将为进一步探讨昆虫的取食机制提供参考依据。 |
| 英文摘要: |
| Athetis dissimilis (Hampson) is an important agricultural insect pest newly found in Mainland China in recent years. In this study, the morphology, types and distribution of the sensilla on larval antennae and mouthparts of A.dissimilis were examined by using scanning electron microscopy. The sensilla of larval antennae of A.dissimilis are mainly distributed on the pedicel and flagellum. The pedicel possesses three sensilla basiconica and two sensilla chaetica, and the terminal flagellum carries three sensilla basiconica and one sensillum styloconicum. The larval mouthpart of A. dissimilis is composed of labrum, mandible, maxillae, labium and hypopharynx. The labrum bears six pairs of sensilla chaetica; the epipharynx carries three pairs of sensilla chaetica, a pair of sensilla digitiformia and a pair of epipharyngeal sensilla.Each dentate mandible carries two sensilla chaetica basally on its outer face.The sensilla on the maxillae are mainly distributed on the galea and maxillary palpi. Each galea has three sensilla chaetica, three sensilla basiconica and two sensilla styloconica. Each maxillary palpus possesses eight sensilla basiconica, one sensillum digitiformium and two sensilla placodea. Each labial palpus bears one sensillum styloconicum and one sensillum basiconicum. In addition, the functions of these sensilla are discussed by comparing them with those of other lepidopter an larvae. This study would provide a reference for further exploring the feeding mechanism of insects. |
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