Study of helminth parasites of amphibians by scanning electron microscopy

Amphibians, like all other animals, are subject to a variety of parasites and diseases, including viral, bacterial and fungal infections as well as some forms of cancer and tuberculosis (Hoff et al., 1984). Various viruses and bacteria such as Pseudomonas or Salmonella, and fungi such as Candida, ar...

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Autores principales: González, Cynthya Elizabeth, Hamann, Mónica Inés, Salgado Laurenti, Cristina Renee
Otros Autores: Kazmiruk, Viacheslav
Formato: parte de libro
Lenguaje:Inglés
Publicado: IntechOpen 2021
Materias:
Parásitos helmintos
Anfibios
Microscopía electrónica de barrido
Acceso en línea:http://repositorio.unne.edu.ar/handle/123456789/28370
Aporte de:
RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) de Universidad Nacional del Nordeste
id I48-R184-123456789-28370
record_format dspace
spelling I48-R184-123456789-283702025-03-06T11:58:20Z Study of helminth parasites of amphibians by scanning electron microscopy González, Cynthya Elizabeth Hamann, Mónica Inés Salgado Laurenti, Cristina Renee Kazmiruk, Viacheslav Parásitos helmintos Anfibios Microscopía electrónica de barrido Amphibians, like all other animals, are subject to a variety of parasites and diseases, including viral, bacterial and fungal infections as well as some forms of cancer and tuberculosis (Hoff et al., 1984). Various viruses and bacteria such as Pseudomonas or Salmonella, and fungi such as Candida, are recorded as common infectious agents in amphibians, but currently the focus of studies are the fungi of genus Batrachochytrium, agents of the disease known as chytridiomycosis, which is considered as one of the factors responsible for the decline of amphibian populations in many parts of the world (Berger and Speare, 1998). In addition, protozoans of the genera Opalina and Entamoeba in the digestive tract, and trypanosomes in the circulatory system, as well as coccidian protozoa have been recorded in amphibians (Duellman and Trueb, 1986; Duszynski et al., 2007). However, helminths are the most common invertebrate parasites of amphibians. One well known example among trematodes is the monogenean genus Polystoma, which infects the urinary bladder of adult amphibians around the world. Parasitic digenean trematodes include both larval stages (metacercariae) and adults. Cestodes are not common parasites in the gastrointestinal tract of amphibians, but when present may persist for a long time. Adult acanthocephalans adhere to the mucosa of the stomach or intestine. Finally, nematodes are particularly abundant in the digestive tract, lungs and blood vessels of these vertebrates (Pough et al., 2001). Amphibians are also hosts to other groups of less common parasitic invertebrates, such as annelids, pentastomids and arthropods (copepods, ticks, insects) (Tinsley, 1995) 2021-08-12T11:53:18Z 2021-08-12T11:53:18Z 2012-03-09 parte de libro González, Cynthya Elizabeth, Hamann, Mónica Inés y Salgado Laurenti, Cristina Renee, 2012. Study of helminth parasites of amphibians by scanning electron microscopy. En: Viacheslav Kazmiruk, ed. Scanning Electron Microscopy. Londres: IntechOpen, p. 267-294. ISBN 978-953-51-0092-8. 978-953-51-0092-8 http://repositorio.unne.edu.ar/handle/123456789/28370 eng openAccess http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ application/pdf p. 267-294 application/pdf IntechOpen
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-184
collection RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
language Inglés
topic Parásitos helmintos
Anfibios
Microscopía electrónica de barrido
spellingShingle Parásitos helmintos
Anfibios
Microscopía electrónica de barrido
González, Cynthya Elizabeth
Hamann, Mónica Inés
Salgado Laurenti, Cristina Renee
Study of helminth parasites of amphibians by scanning electron microscopy
topic_facet Parásitos helmintos
Anfibios
Microscopía electrónica de barrido
description Amphibians, like all other animals, are subject to a variety of parasites and diseases, including viral, bacterial and fungal infections as well as some forms of cancer and tuberculosis (Hoff et al., 1984). Various viruses and bacteria such as Pseudomonas or Salmonella, and fungi such as Candida, are recorded as common infectious agents in amphibians, but currently the focus of studies are the fungi of genus Batrachochytrium, agents of the disease known as chytridiomycosis, which is considered as one of the factors responsible for the decline of amphibian populations in many parts of the world (Berger and Speare, 1998). In addition, protozoans of the genera Opalina and Entamoeba in the digestive tract, and trypanosomes in the circulatory system, as well as coccidian protozoa have been recorded in amphibians (Duellman and Trueb, 1986; Duszynski et al., 2007). However, helminths are the most common invertebrate parasites of amphibians. One well known example among trematodes is the monogenean genus Polystoma, which infects the urinary bladder of adult amphibians around the world. Parasitic digenean trematodes include both larval stages (metacercariae) and adults. Cestodes are not common parasites in the gastrointestinal tract of amphibians, but when present may persist for a long time. Adult acanthocephalans adhere to the mucosa of the stomach or intestine. Finally, nematodes are particularly abundant in the digestive tract, lungs and blood vessels of these vertebrates (Pough et al., 2001). Amphibians are also hosts to other groups of less common parasitic invertebrates, such as annelids, pentastomids and arthropods (copepods, ticks, insects) (Tinsley, 1995)
author2 Kazmiruk, Viacheslav
author_facet Kazmiruk, Viacheslav
González, Cynthya Elizabeth
Hamann, Mónica Inés
Salgado Laurenti, Cristina Renee
format parte de libro
author González, Cynthya Elizabeth
Hamann, Mónica Inés
Salgado Laurenti, Cristina Renee
author_sort González, Cynthya Elizabeth
title Study of helminth parasites of amphibians by scanning electron microscopy
title_short Study of helminth parasites of amphibians by scanning electron microscopy
title_full Study of helminth parasites of amphibians by scanning electron microscopy
title_fullStr Study of helminth parasites of amphibians by scanning electron microscopy
title_full_unstemmed Study of helminth parasites of amphibians by scanning electron microscopy
title_sort study of helminth parasites of amphibians by scanning electron microscopy
publisher IntechOpen
publishDate 2021
url http://repositorio.unne.edu.ar/handle/123456789/28370
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AT hamannmonicaines studyofhelminthparasitesofamphibiansbyscanningelectronmicroscopy
AT salgadolaurenticristinarenee studyofhelminthparasitesofamphibiansbyscanningelectronmicroscopy
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