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Morphology and ultrastructure of antennal sensilla of the parasitic wasp Baryscapus dioryctriae (Hymenoptera: Eulophidae) |
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| Authors: | Qi Chen Lanqin Li Guoqing Kang Tongtong Zuo Kaipeng Zhang Liwen Song Xiaoyan Zhu Haoqin Ke Minjia Huang Jingyi Zhao Zizhuo Wang Qiling Yu Qingxin Liu Junjie Zhang Bingzhong Ren |
| Affiliation: | 1. Jilin Provincial Key Laboratory of Animal Resource Conservation and Utilization, School of Life Sciences, Northeast Normal University, Changchun, China Key Laboratory of Vegetation Ecology, MOE, Northeast Normal University, Changchun, China Contribution: Conceptualization, Data curation, Funding acquisition, Methodology, Project administration, Validation, Writing - original draft, Writing - review & editing;2. Jilin Provincial Key Laboratory of Animal Resource Conservation and Utilization, School of Life Sciences, Northeast Normal University, Changchun, China Key Laboratory of Vegetation Ecology, MOE, Northeast Normal University, Changchun, China Contribution: Data curation, Formal analysis, Investigation, Methodology, Resources, Software, Validation, Visualization, Writing - original draft;3. Jilin Provincial Key Laboratory of Animal Resource Conservation and Utilization, School of Life Sciences, Northeast Normal University, Changchun, China Key Laboratory of Vegetation Ecology, MOE, Northeast Normal University, Changchun, China Contribution: Formal analysis, Methodology;4. Research Institute of Forest Protection, Jilin Provincial Academy of Forestry Sciences, Changchun, China Contribution: Investigation;5. Jilin Provincial Key Laboratory of Animal Resource Conservation and Utilization, School of Life Sciences, Northeast Normal University, Changchun, China Key Laboratory of Vegetation Ecology, MOE, Northeast Normal University, Changchun, China Contribution: Formal analysis, Software;6. Jilin Provincial Key Laboratory of Animal Resource Conservation and Utilization, School of Life Sciences, Northeast Normal University, Changchun, China Key Laboratory of Vegetation Ecology, MOE, Northeast Normal University, Changchun, China Contribution: Formal analysis, Investigation;7. Jilin Provincial Key Laboratory of Animal Resource Conservation and Utilization, School of Life Sciences, Northeast Normal University, Changchun, China Key Laboratory of Vegetation Ecology, MOE, Northeast Normal University, Changchun, China Contribution: Formal analysis;8. Jilin Provincial Key Laboratory of Animal Resource Conservation and Utilization, School of Life Sciences, Northeast Normal University, Changchun, China Key Laboratory of Vegetation Ecology, MOE, Northeast Normal University, Changchun, China Contribution: Investigation;9. Jilin Provincial Key Laboratory of Animal Resource Conservation and Utilization, School of Life Sciences, Northeast Normal University, Changchun, China Key Laboratory of Vegetation Ecology, MOE, Northeast Normal University, Changchun, China Contribution: Data curation;10. Engineering Research Center of Natural Enemies, Institute of Biological Control, Jilin Agricultural University, Changchun, China;11. Jilin Provincial Key Laboratory of Animal Resource Conservation and Utilization, School of Life Sciences, Northeast Normal University, Changchun, China |
| Abstract: | Baryscapus dioryctriae is an endoparasitic wasp in the pupae of many Pyralidae pests, such as Dioryctria mendacella, Ostrinia furnacalis, and Chilo suppressalis. To provide requisite background for our ongoing research on the mechanisms of host location in B. dioryctriae, the morphology, abundance, distribution, and ultrastructure of the antennal sensilla were investigated using scanning and transmission electron microscopy. The geniculate antennae of B. dioryctriae are composed of scape, pedicel, and flagellum. Eight types of sensilla including Böhm sensilla, chaetica, trichodea, basiconic capitate peg, campaniformia, placodea, coeloconica, and sensilla styloconicum with a long hair were identified on both sexes. Sexual dimorphism exists in the antennae of B. dioryctriae. The number of flagellomere in males is over females, and the subtypes and abundance of sensilla are also different between the sexes. Additionally, the possible functions of distinct sensilla were discussed, which varies from olfaction, contact chemoreceptive, mechanoreception to hygro-/thermoreception, especially, the sensilla trichodea and placodea might be involved in olfactory perception in B. dioryctriae. These results provide an essential basis for further study on chemical communication between B. dioryctriae and their hosts, and contribute to the development of B. dioryctriae becoming an effective biocontrol agent against the pests of agriculture and forestry. |
| Keywords: | antennal sensilla Baryscapus dioryctriae Hymenoptera morphology ultrastructure |