Natalia Matushkina , Stanislav N. Gorb , Wencke Krings
{"title":"豆娘黄花鸟内生产卵器的物质组成(黄花鸟科)","authors":"Natalia Matushkina , Stanislav N. Gorb , Wencke Krings","doi":"10.1016/j.jinsphys.2025.104813","DOIUrl":null,"url":null,"abstract":"<div><div>Natural selection has favoured the incorporation of ions, including transition metals, in materials of various biological structures susceptible to mechanical fracture to enhance their failure and wear resistance. With regards to insects, only a few taxa have been investigated. The objective of this study was to analyse the biomechanical properties of the ovipositor in the damselfly <em>Calopteryx splendens</em> (Harris, 1780) (Odonata, Zygoptera, Calopterygidae) through nanoindentation and to ascertain the elemental composition gradient within the cuticle using energy-dispersive X-ray spectroscopy. This research represents the first report indicating that the damselfly ovipositor exhibits a gradient in the mechanical properties of the cuticle, with Young’s modulus ranging from approximately 3.0 to 7.0 GPa and hardness from 0.1 to 0.3 GPa. These properties highly correlate with the contents of copper and magnesium, both of which increase in the distal direction. The results also suggests that the mechanical properties of the cuticle are significantly influenced by the degree of sclerotization revealed by confocal laser scanning microscopy. These findings propose that the material properties of the ovipositor cuticle in <em>C. splendens</em> may have adapted to enhance piercing capability and to reduce the risk of structural failure during insertion of eggs in plant substrates.</div></div>","PeriodicalId":16189,"journal":{"name":"Journal of insect physiology","volume":"163 ","pages":"Article 104813"},"PeriodicalIF":2.3000,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Material composition of the endophytic ovipositor in the damselfly Calopteryx splendens (Odonata, Calopterygidae)\",\"authors\":\"Natalia Matushkina , Stanislav N. Gorb , Wencke Krings\",\"doi\":\"10.1016/j.jinsphys.2025.104813\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Natural selection has favoured the incorporation of ions, including transition metals, in materials of various biological structures susceptible to mechanical fracture to enhance their failure and wear resistance. With regards to insects, only a few taxa have been investigated. The objective of this study was to analyse the biomechanical properties of the ovipositor in the damselfly <em>Calopteryx splendens</em> (Harris, 1780) (Odonata, Zygoptera, Calopterygidae) through nanoindentation and to ascertain the elemental composition gradient within the cuticle using energy-dispersive X-ray spectroscopy. This research represents the first report indicating that the damselfly ovipositor exhibits a gradient in the mechanical properties of the cuticle, with Young’s modulus ranging from approximately 3.0 to 7.0 GPa and hardness from 0.1 to 0.3 GPa. These properties highly correlate with the contents of copper and magnesium, both of which increase in the distal direction. The results also suggests that the mechanical properties of the cuticle are significantly influenced by the degree of sclerotization revealed by confocal laser scanning microscopy. These findings propose that the material properties of the ovipositor cuticle in <em>C. splendens</em> may have adapted to enhance piercing capability and to reduce the risk of structural failure during insertion of eggs in plant substrates.</div></div>\",\"PeriodicalId\":16189,\"journal\":{\"name\":\"Journal of insect physiology\",\"volume\":\"163 \",\"pages\":\"Article 104813\"},\"PeriodicalIF\":2.3000,\"publicationDate\":\"2025-04-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of insect physiology\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0022191025000678\",\"RegionNum\":2,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENTOMOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of insect physiology","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0022191025000678","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENTOMOLOGY","Score":null,"Total":0}
Material composition of the endophytic ovipositor in the damselfly Calopteryx splendens (Odonata, Calopterygidae)
Natural selection has favoured the incorporation of ions, including transition metals, in materials of various biological structures susceptible to mechanical fracture to enhance their failure and wear resistance. With regards to insects, only a few taxa have been investigated. The objective of this study was to analyse the biomechanical properties of the ovipositor in the damselfly Calopteryx splendens (Harris, 1780) (Odonata, Zygoptera, Calopterygidae) through nanoindentation and to ascertain the elemental composition gradient within the cuticle using energy-dispersive X-ray spectroscopy. This research represents the first report indicating that the damselfly ovipositor exhibits a gradient in the mechanical properties of the cuticle, with Young’s modulus ranging from approximately 3.0 to 7.0 GPa and hardness from 0.1 to 0.3 GPa. These properties highly correlate with the contents of copper and magnesium, both of which increase in the distal direction. The results also suggests that the mechanical properties of the cuticle are significantly influenced by the degree of sclerotization revealed by confocal laser scanning microscopy. These findings propose that the material properties of the ovipositor cuticle in C. splendens may have adapted to enhance piercing capability and to reduce the risk of structural failure during insertion of eggs in plant substrates.
期刊介绍:
All aspects of insect physiology are published in this journal which will also accept papers on the physiology of other arthropods, if the referees consider the work to be of general interest. The coverage includes endocrinology (in relation to moulting, reproduction and metabolism), pheromones, neurobiology (cellular, integrative and developmental), physiological pharmacology, nutrition (food selection, digestion and absorption), homeostasis, excretion, reproduction and behaviour. Papers covering functional genomics and molecular approaches to physiological problems will also be included. Communications on structure and applied entomology can be published if the subject matter has an explicit bearing on the physiology of arthropods. Review articles and novel method papers are also welcomed.