Detection of <em>Ichthyophthirius multifiliis </em>(Ichthyophthiriidae) in two wildamphibian species.

Emerging infectious diseases are one of the main threats to global amphibian populations. Frogs and salamanders are already affected by various pathogens, including ranaviruses, <em>Batrachochytrium dendrobatidis</em>, <em>B. salamandrivorans</em>, and helminths. Here, we rep...

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Autores: Poonlaphdecha, Srisupaph, Martínez-Silvestre, Albert, Collado Conde, Norma, Budó Ricart, Joan, Suwannarat, Nannaphat, Ribas Salvador, Alexis
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/224777
Acceso en línea:https://hdl.handle.net/2445/224777
Access Level:acceso abierto
Palabra clave:Paràsits
Parasitologia
Malalties dels peixos
Amfibis
Parasites
Parasitology
Fish diseases
Amphibians
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spelling Detection of <em>Ichthyophthirius multifiliis </em>(Ichthyophthiriidae) in two wildamphibian species.Poonlaphdecha, SrisupaphMartínez-Silvestre, AlbertCollado Conde, NormaBudó Ricart, JoanSuwannarat, NannaphatRibas Salvador, AlexisParàsitsParasitologiaMalalties dels peixosAmfibisParasitesParasitologyFish diseasesAmphibiansEmerging infectious diseases are one of the main threats to global amphibian populations. Frogs and salamanders are already affected by various pathogens, including ranaviruses, <em>Batrachochytrium dendrobatidis</em>, <em>B. salamandrivorans</em>, and helminths. Here, we report the first confirmed cases of <em>Ichthyophthirius multifiliis</em>, a ciliate parasite traditionally considered fish-specific, infecting wild amphibian larvae in a natural setting. As part of a passive surveillance program in Catalonia, five dead amphibians (four <em>S. salamandra</em> larvae and one <em>Rana temporaria</em> post-metamorph) were collected from a freshwater spring and examined for common pathogens. All individuals tested negative for chytrid fungi and ranaviruses by qPCR. However, histological examination of gill tissue revealed the presence of <em>I. multifiliis</em> trophonts in three of the salamander metamorphs and in the frog post-metamorph. In addition, larvae of forty-two amphibians from other localities in Catalonia tested negative. The observed trophonts matched morphological features previously described in teleost infections, including their characteristic macronucleus and surface ciliation. Our results further validate the previous molecular detections and experimental evidence suggesting the parasite’s potential for cross-taxon infection, raising concerns about the overlooked potential prevalence of <em>I. multifiliis</em> in wild amphibians. Given the increasing impact of climate change and habitat alteration on global freshwater ecosystems, this study highlights the importance of including <em>I. multifiliis</em> in amphibian disease monitoring programs.Frontiers Media2025202520252025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion6 p.application/pdfhttps://hdl.handle.net/2445/224777Articles publicats en revistes (Biologia, Sanitat i Medi Ambient)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció del document publicat a: https://doi.org/10.3389/fvets.2025.1682567Frontiers In Veterinary Science, 2025, vol. 12, num.1682567https://doi.org/10.3389/fvets.2025.1682567cc-by (c) Poonlaphdecha, S. et al., 2025http://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:recercat.cat:2445/2247772026-05-29T05:05:01Z
dc.title.none.fl_str_mv Detection of <em>Ichthyophthirius multifiliis </em>(Ichthyophthiriidae) in two wildamphibian species.
title Detection of <em>Ichthyophthirius multifiliis </em>(Ichthyophthiriidae) in two wildamphibian species.
spellingShingle Detection of <em>Ichthyophthirius multifiliis </em>(Ichthyophthiriidae) in two wildamphibian species.
Poonlaphdecha, Srisupaph
Paràsits
Parasitologia
Malalties dels peixos
Amfibis
Parasites
Parasitology
Fish diseases
Amphibians
title_short Detection of <em>Ichthyophthirius multifiliis </em>(Ichthyophthiriidae) in two wildamphibian species.
title_full Detection of <em>Ichthyophthirius multifiliis </em>(Ichthyophthiriidae) in two wildamphibian species.
title_fullStr Detection of <em>Ichthyophthirius multifiliis </em>(Ichthyophthiriidae) in two wildamphibian species.
title_full_unstemmed Detection of <em>Ichthyophthirius multifiliis </em>(Ichthyophthiriidae) in two wildamphibian species.
title_sort Detection of <em>Ichthyophthirius multifiliis </em>(Ichthyophthiriidae) in two wildamphibian species.
dc.creator.none.fl_str_mv Poonlaphdecha, Srisupaph
Martínez-Silvestre, Albert
Collado Conde, Norma
Budó Ricart, Joan
Suwannarat, Nannaphat
Ribas Salvador, Alexis
author Poonlaphdecha, Srisupaph
author_facet Poonlaphdecha, Srisupaph
Martínez-Silvestre, Albert
Collado Conde, Norma
Budó Ricart, Joan
Suwannarat, Nannaphat
Ribas Salvador, Alexis
author_role author
author2 Martínez-Silvestre, Albert
Collado Conde, Norma
Budó Ricart, Joan
Suwannarat, Nannaphat
Ribas Salvador, Alexis
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Paràsits
Parasitologia
Malalties dels peixos
Amfibis
Parasites
Parasitology
Fish diseases
Amphibians
topic Paràsits
Parasitologia
Malalties dels peixos
Amfibis
Parasites
Parasitology
Fish diseases
Amphibians
description Emerging infectious diseases are one of the main threats to global amphibian populations. Frogs and salamanders are already affected by various pathogens, including ranaviruses, <em>Batrachochytrium dendrobatidis</em>, <em>B. salamandrivorans</em>, and helminths. Here, we report the first confirmed cases of <em>Ichthyophthirius multifiliis</em>, a ciliate parasite traditionally considered fish-specific, infecting wild amphibian larvae in a natural setting. As part of a passive surveillance program in Catalonia, five dead amphibians (four <em>S. salamandra</em> larvae and one <em>Rana temporaria</em> post-metamorph) were collected from a freshwater spring and examined for common pathogens. All individuals tested negative for chytrid fungi and ranaviruses by qPCR. However, histological examination of gill tissue revealed the presence of <em>I. multifiliis</em> trophonts in three of the salamander metamorphs and in the frog post-metamorph. In addition, larvae of forty-two amphibians from other localities in Catalonia tested negative. The observed trophonts matched morphological features previously described in teleost infections, including their characteristic macronucleus and surface ciliation. Our results further validate the previous molecular detections and experimental evidence suggesting the parasite’s potential for cross-taxon infection, raising concerns about the overlooked potential prevalence of <em>I. multifiliis</em> in wild amphibians. Given the increasing impact of climate change and habitat alteration on global freshwater ecosystems, this study highlights the importance of including <em>I. multifiliis</em> in amphibian disease monitoring programs.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/224777
url https://hdl.handle.net/2445/224777
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.3389/fvets.2025.1682567
Frontiers In Veterinary Science, 2025, vol. 12, num.1682567
https://doi.org/10.3389/fvets.2025.1682567
dc.rights.none.fl_str_mv cc-by (c) Poonlaphdecha, S. et al., 2025
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by (c) Poonlaphdecha, S. et al., 2025
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 6 p.
application/pdf
dc.publisher.none.fl_str_mv Frontiers Media
publisher.none.fl_str_mv Frontiers Media
dc.source.none.fl_str_mv Articles publicats en revistes (Biologia, Sanitat i Medi Ambient)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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