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美国白蛾触角感器的超微结构

引用本文：刘丹,邓竣丹,许维康,顾天滋,忙定泽,张龙娃.美国白蛾触角感器的超微结构.植物保护学报,2023,50(2):507-518

DOI：10.13802/j.cnki.zwbhxb.2023.2021148

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作者	单位	E-mail
刘丹	安徽农业大学林学与园林学院, 安徽省微生物防治省重点实验室, 真菌生物技术教育部工程研究中心, 合肥 230036
邓竣丹	安徽农业大学林学与园林学院, 安徽省微生物防治省重点实验室, 真菌生物技术教育部工程研究中心, 合肥 230036
许维康	安徽农业大学林学与园林学院, 安徽省微生物防治省重点实验室, 真菌生物技术教育部工程研究中心, 合肥 230036
顾天滋	安徽农业大学林学与园林学院, 安徽省微生物防治省重点实验室, 真菌生物技术教育部工程研究中心, 合肥 230036
忙定泽	河北大学生命科学学院, 保定 071002 东京农工大学, 生物系统应用科学府, 分子生物学研究室, 东京 184-8588, 日本	mang@hbu.edu.cn
张龙娃	安徽农业大学林学与园林学院, 安徽省微生物防治省重点实验室, 真菌生物技术教育部工程研究中心, 合肥 230036	zhanglw@ahau.edu.cn

中文摘要:为明确美国白蛾Hyphantria cunea成虫触角上感器的种类、形态和分布,通过扫描电镜观察美国白蛾雌、雄成虫触角上感器的超微结构。结果显示,美国白蛾雌成虫触角呈锯齿状,雄成虫触角呈双栉节状。雌、雄成虫触角上的感器类型有所不同,个别感器的长度和基部直径差异显著。美国白蛾成虫触角上分布9类共16种感器,即4种毛形感器Ⅰ~Ⅳ、2种刺形感器Ⅰ~Ⅱ、1种鳞形感器、2种锥形感器Ⅰ~Ⅱ、2种腔锥形感器Ⅰ~Ⅱ、1种栓锥形感器、1种舌形感器、2种Bǒhm氏鬃毛Ⅰ~Ⅱ以及1种新的感器——单孔栓感器。毛形感器数量最多,且雄成虫触角上的毛形感器数量多于雌成虫触角上的。单孔栓感器数量较少,雌、雄成虫触角上仅发现2~3个,在雌成虫第1~3鞭亚节腹面锯齿端部各分布有1个。毛形感器Ⅳ——超长毛形感器及舌形感器仅分布在雄成虫触角上。锥形感器Ⅰ~Ⅱ、腔锥形感器Ⅰ和Bǒhm氏鬃毛Ⅰ~Ⅱ的长度在雌、雄成虫间均差异不显著,而其余感器的长度在雌、雄成虫间均差异显著;雄成虫触角上毛形感器Ⅰ~Ⅲ、腔锥形感器Ⅱ和刺形感器Ⅰ~Ⅱ的长度均显著大于雌成虫触角上的,雌成虫触角上鳞形感器和栓锥形感器的长度显著大于雄成虫触角上的。表明美国白蛾雄成虫触角上的感器种类和数量较多,推测雄成虫感受寄主植物或性信息素的能力较强。

中文关键词:美国白蛾触角感器形态扫描电镜

Ultrastructure of sensilla on the antennae of fall webworm Hyphantria cunea (Lepidoptera: Arctiidae)

Author Name	Affiliation	E-mail
Liu Dan	Engineering Research Center of Fungal Biotechnology, Ministry of Education Anhui Provincial Key Laboratory of Microbial Control School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230036, Anhui Province, China
Deng Jundan	Engineering Research Center of Fungal Biotechnology, Ministry of Education Anhui Provincial Key Laboratory of Microbial Control School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230036, Anhui Province, China
Xu Weikang	Engineering Research Center of Fungal Biotechnology, Ministry of Education Anhui Provincial Key Laboratory of Microbial Control School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230036, Anhui Province, China
Gu Tianzi	Engineering Research Center of Fungal Biotechnology, Ministry of Education Anhui Provincial Key Laboratory of Microbial Control School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230036, Anhui Province, China
Mang Dingze	College of Life Sciences, Hebei University, Baoding 071002, Hebei Province, China Laboratory of Molecular Biology, Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, Tokyo 184-8588, Japan	mang@hbu.edu.cn
Zhang Longwa	Engineering Research Center of Fungal Biotechnology, Ministry of Education Anhui Provincial Key Laboratory of Microbial Control School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230036, Anhui Province, China	zhanglw@ahau.edu.cn

Abstract:To elucidate the types, morphology, quantity and distribution of sensilla on the antennae of fall webworm Hyphantria cunea adults, the ultrastructure of antennal sensilla of both female and male moths was observed with scanning electron microscopy (SEM). The results showed that the antennae of female and male H. cunea were serrate and bipectinate, respectively, with different types of sensilla. There was significant difference in the length and base diameter of some sensilla between female and male. A total of 16 subtypes of sensilla in nine groups were identified on the antennae of H. cunea:four subtypes of sensilla trichodea Ⅰ-Ⅳ (ST-Ⅰ-ST-Ⅳ), two subtypes of sensilla chaetica (SCH-Ⅰ, SCH-Ⅱ), one sensilla squamiformia (SSQ), two subtypes of sensilla basiconica (SB-Ⅰ, SB-Ⅱ), two subtypes of sensilla coeloconica (SCO-Ⅰ, SCO-Ⅱ), one sensilla styloconica (SST), one sensilla ligulate (SL), and two subtypes of Bǒhm bristles (BB-Ⅰ, BB-Ⅱ). In addition, a new type of sensilla, named uniporous peg sensilla (UP), was also identified in this study. Sensilla trichodea were the most abundant sensilla for both sexes, but more in males than in females. In contrast, only two to three uniporous peg sensilla were found on the antennae of both male and female, with one on the ventral surface of each of flagellum segments Ⅰ-Ⅲ in female adults. Interestingly, ST-Ⅳ and SL sensilla were observed only on the antennae of male. Except for SB-Ⅰ, SB-Ⅱ, SCO-Ⅰ, BB-Ⅰ and BB-Ⅱ, the lengths of the other sensillum types were significantly different between sexes. The lengths of ST-Ⅰ, ST-Ⅱ, ST-Ⅲ, SCO-Ⅱ, SCH-Ⅰ and SCH-Ⅱ of males were significantly longer than those of females. However, the length of SSQ and STY of females was significantly longer than that of males. More and wider distribution of sensilla on the male antennae indicated that male H. cunea likely played a more important role in host selection and recognition of sex pheromones.

keywords:Hyphantria cunea antenna sensilla morphology scanning electron microscopy

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