School of Agriculture, Yunnan University, Kunming, China.
School of Biology, Yunnan University, Kunming, China.
Microsc Res Tech. 2024 Dec;87(12):2989-3002. doi: 10.1002/jemt.24644. Epub 2024 Aug 5.
The fall armyworm (FAW), Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae), is a globally significant agricultural pest, causing severe damage to corn production in China. Chemical odor-based trapping is a major approach for FAW control, making it essential to understand the FAW antennal sensillum types to enhance development of effective chemical odor attractants. In this study, we comprehensively examined the antennal sensilla types of FAW, identifying eight types and two subtypes, including Böhm's bristles, sensilla trichoidea, sensilla chaetica (I and II), sensilla coeloconica, sensilla styloconica, sensilla squamiformia (I and II), sensilla auricillica, and sensilla basiconica. Sensilla chaetica II, and sensilla squamiformia II are reported for the first time for FAW in this study. Detailed low-voltage field emission scanning electron microscope (LVSEM) images and descriptions are provided for each sensillum type. This study provides the morphological information to aid in conducting antennal sensillum neurophysiological tests on FAW. RESEARCH HIGHLIGHTS: The types of sensilla of fall armyworm were examined, identifying eight types and two subtypes, including Böhm's bristles, sensilla trichoidea, sensilla chaetica (I and II), sensilla coeloconica, sensilla styloconica, sensilla squamiformia (I and II), sensilla auricillica, and sensilla basiconica. Detailed low-voltage field emission scanning electron microscope images and descriptions were provided for each sensillum type.
秋黏虫（FAW），Spodoptera frugiperda（J. E. Smith）（鳞翅目：夜蛾科），是一种具有全球重要意义的农业害虫，对中国的玉米生产造成严重破坏。基于化学气味的诱捕是 FAW 控制的主要方法，因此了解 FAW 触角感器类型对于开发有效的化学气味引诱剂至关重要。在本研究中，我们全面检查了 FAW 的触角感器类型，确定了 8 种类型和 2 个亚型，包括 Böhm 鬃毛、感觉毛、感觉毛（I 和 II）、感觉圆锥体、感觉柱状体、感觉鳞片状（I 和 II）、感觉环状体和感觉基底体。本研究首次报道了 FAW 的感觉毛 II 和感觉鳞片状 II。为每种感器类型提供了详细的低压场发射扫描电子显微镜（LVSEM）图像和描述。本研究提供了形态学信息，有助于对 FAW 进行触角感器神经生理测试。研究亮点：检查了秋黏虫的感器类型，确定了 8 种类型和 2 个亚型，包括 Böhm 鬃毛、感觉毛、感觉毛（I 和 II）、感觉圆锥体、感觉柱状体、感觉鳞片状（I 和 II）、感觉环状体和感觉基底体。为每种感器类型提供了详细的低压场发射扫描电子显微镜图像和描述。
