{"title":"弗罗里达入侵蜥蜴的另一种传播途径和 Cyrtosomum penneri 的宿主特异性。","authors":"Julia R Legiec, Gabriel J Langford","doi":"10.1645/23-111","DOIUrl":null,"url":null,"abstract":"<p><p>The atractid nematode Cyrtosomum penneri is an autoinfective parasite of several lizard species. Intraspecific transmission between hosts appears to occur exclusively through sexual copulation, yet it is unclear how worms are transferred between different host species. Our research aims to test the possibility of oral transmission of C. penneri using experimental infections. The lizards Anolis sagrei, Leiocephalus carinatus, Hemidactylus mabouia, and Agama picticauda were experimentally exposed to C. penneri in 1 of these groups: (1) oral infection using a feces and saline slurry to approximate host coprophagy, (2) oral infection with a large meal to approximate host predation, and (3) venereal infection using a pipette to confirm sexual transmission. Experimental infections to test venereal transmission were successful in A. sagrei, A. picticauda, and H. mabouia, but were unable to establish infections in L. carinatus. In the predation exposures, A. picticauda, A. sagrei, and H. mabouia hosted infections, whereas L. carinatus were uninfected. Finally, coprophagy experimental infections did not result in infections for any species of host. Our study corroborates venereal transmission of C. penneri in multiple species of lizards and establishes predation as an alternative route of infection. Predation as an oral route of transmission may provide C. penneri an opportunity for interspecific transmission that would otherwise be unlikely during host copulation.</p>","PeriodicalId":16659,"journal":{"name":"Journal of Parasitology","volume":null,"pages":null},"PeriodicalIF":1.0000,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"ALTERNATIVE ROUTE OF TRANSMISSION AND HOST SPECIFICITY OF CYRTOSOMUM PENNERI IN FLORIDA'S INVASIVE LIZARDS.\",\"authors\":\"Julia R Legiec, Gabriel J Langford\",\"doi\":\"10.1645/23-111\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>The atractid nematode Cyrtosomum penneri is an autoinfective parasite of several lizard species. Intraspecific transmission between hosts appears to occur exclusively through sexual copulation, yet it is unclear how worms are transferred between different host species. Our research aims to test the possibility of oral transmission of C. penneri using experimental infections. The lizards Anolis sagrei, Leiocephalus carinatus, Hemidactylus mabouia, and Agama picticauda were experimentally exposed to C. penneri in 1 of these groups: (1) oral infection using a feces and saline slurry to approximate host coprophagy, (2) oral infection with a large meal to approximate host predation, and (3) venereal infection using a pipette to confirm sexual transmission. Experimental infections to test venereal transmission were successful in A. sagrei, A. picticauda, and H. mabouia, but were unable to establish infections in L. carinatus. In the predation exposures, A. picticauda, A. sagrei, and H. mabouia hosted infections, whereas L. carinatus were uninfected. Finally, coprophagy experimental infections did not result in infections for any species of host. Our study corroborates venereal transmission of C. penneri in multiple species of lizards and establishes predation as an alternative route of infection. Predation as an oral route of transmission may provide C. penneri an opportunity for interspecific transmission that would otherwise be unlikely during host copulation.</p>\",\"PeriodicalId\":16659,\"journal\":{\"name\":\"Journal of Parasitology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.0000,\"publicationDate\":\"2024-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Parasitology\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.1645/23-111\",\"RegionNum\":4,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"PARASITOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Parasitology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1645/23-111","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PARASITOLOGY","Score":null,"Total":0}
引用次数: 0
摘要
苍术线虫Cyrtosomum penneri是几种蜥蜴的自体感染寄生虫。宿主之间的种内传播似乎只通过有性交配发生,但目前还不清楚蠕虫如何在不同宿主物种之间传播。我们的研究旨在通过实验感染来检验 C. penneri 经口传播的可能性。我们将蜥蜴Anolis sagrei、Leiocephalus carinatus、Hemidactylus mabouia和Agama picticauda分成以下几组,其中一组通过实验接触C. penneri:(1)用粪便和生理盐水泥浆进行口腔感染,以近似于宿主的共食;(2)用大餐进行口腔感染,以近似于宿主的捕食;(3)用吸管进行性病感染,以确认性传播。对 A.sagrei、A. picticauda 和 H. mabouia 进行的性传播实验感染获得了成功,但未能在 L. carinatus 中建立感染。在捕食暴露中,A. picticauda、A. sagrei和H. mabouia受到感染,而L. carinatus没有受到感染。最后,共食实验感染没有导致任何宿主物种受到感染。我们的研究证实了C. penneri在多种蜥蜴中的性传播,并确定捕食是另一种感染途径。捕食作为一种口腔传播途径,可能为C. penneri提供了种间传播的机会,否则在宿主交配期间是不可能发生这种传播的。
ALTERNATIVE ROUTE OF TRANSMISSION AND HOST SPECIFICITY OF CYRTOSOMUM PENNERI IN FLORIDA'S INVASIVE LIZARDS.
The atractid nematode Cyrtosomum penneri is an autoinfective parasite of several lizard species. Intraspecific transmission between hosts appears to occur exclusively through sexual copulation, yet it is unclear how worms are transferred between different host species. Our research aims to test the possibility of oral transmission of C. penneri using experimental infections. The lizards Anolis sagrei, Leiocephalus carinatus, Hemidactylus mabouia, and Agama picticauda were experimentally exposed to C. penneri in 1 of these groups: (1) oral infection using a feces and saline slurry to approximate host coprophagy, (2) oral infection with a large meal to approximate host predation, and (3) venereal infection using a pipette to confirm sexual transmission. Experimental infections to test venereal transmission were successful in A. sagrei, A. picticauda, and H. mabouia, but were unable to establish infections in L. carinatus. In the predation exposures, A. picticauda, A. sagrei, and H. mabouia hosted infections, whereas L. carinatus were uninfected. Finally, coprophagy experimental infections did not result in infections for any species of host. Our study corroborates venereal transmission of C. penneri in multiple species of lizards and establishes predation as an alternative route of infection. Predation as an oral route of transmission may provide C. penneri an opportunity for interspecific transmission that would otherwise be unlikely during host copulation.
期刊介绍:
The Journal of Parasitology is the official peer-reviewed journal of the American Society of Parasitologists (ASP). The journal publishes original research covering helminths, protozoa, and other parasitic organisms and serves scientific professionals in microbiology, immunology, veterinary science, pathology, and public health. Journal content includes original research articles, brief research notes, announcements of the Society, and book reviews. Articles are subdivided by topic for ease of reference and range from behavior and pathogenesis to systematics and epidemiology. The journal is published continuously online with one full volume printed at the end of each year.