Cargando…

Heterophyid trematodes (Digenea) from penguins: A new species of Ascocotyle Looss, 1899, first description of metacercaria of Ascocotyle (A.) patagoniensis Hernández-Orts, Montero, Crespo, García, Raga and Aznar, 2012, and first molecular data

Two species of heterophyid trematodes were found in the Magellanic penguin, Spheniscus magellanicus (Forster), from Patagonia, Argentina. Ascocotyle (Ascocotyle) patagoniensis Hernández-Orts et al. (2012) is re-described based on new, properly fixed specimens (original material from South American s...

Descripción completa

Detalles Bibliográficos
Autores principales: Hernández-Orts, Jesús S., Georgieva, Simona, Landete, Dennis N., Scholz, Tomáš
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6350101/
https://www.ncbi.nlm.nih.gov/pubmed/30723670
http://dx.doi.org/10.1016/j.ijppaw.2018.12.008
_version_ 1783390384976560128
author Hernández-Orts, Jesús S.
Georgieva, Simona
Landete, Dennis N.
Scholz, Tomáš
author_facet Hernández-Orts, Jesús S.
Georgieva, Simona
Landete, Dennis N.
Scholz, Tomáš
author_sort Hernández-Orts, Jesús S.
collection PubMed
description Two species of heterophyid trematodes were found in the Magellanic penguin, Spheniscus magellanicus (Forster), from Patagonia, Argentina. Ascocotyle (Ascocotyle) patagoniensis Hernández-Orts et al. (2012) is re-described based on new, properly fixed specimens (original material from South American sea lion, Otaria flavescens Shaw, was from frozen hosts). Metacercariae of this species are reported and described for the first time from the heart of the silversides, Odontesthes argentinensis (Valenciennes) and O. smitti (Lahille), from Patagonia. Ascocotyle (Phagicola) cameliae n. sp. is described from the intestine of S. magellanicus. The new species is placed into the subgenus Phagicola Faust, 1920 because of the presence of a single row of circumoral spines and uterine loops and vitelline follicles being confined posterior to the ventral sucker. However, it differs distinctly from other members of this subgenus by the number (19–24) and length (23–31 μm) of massive circumoral spines and by the morphology of the ventrogenital sac with a large, simple gonotyl devoid of refractile bodies. Molecular data (partial 28S rDNA sequences) for both species are also provided. Matching sequences from metacercarial and adult stages helped elucidate partially the life-cycle of A. (A.) patagoniensis. The interspecific relationships and phylogenetic position of Ascocotyle were further assessed on a broad phylogeny on the Opisthorchioidea Looss, 1899. Ascocotyle (P.) ornamentata Shalaby, Esposito, Riegler & Carratù (1993) described from decomposed worms (all circumoral spines were detached) found in a dog in Egypt, with no type-specimens of this species deposited in a repository collection, is considered to be species inquirenda.
format Online
Article
Text
id pubmed-6350101
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher Elsevier
record_format MEDLINE/PubMed
spelling pubmed-63501012019-02-05 Heterophyid trematodes (Digenea) from penguins: A new species of Ascocotyle Looss, 1899, first description of metacercaria of Ascocotyle (A.) patagoniensis Hernández-Orts, Montero, Crespo, García, Raga and Aznar, 2012, and first molecular data Hernández-Orts, Jesús S. Georgieva, Simona Landete, Dennis N. Scholz, Tomáš Int J Parasitol Parasites Wildl Article Two species of heterophyid trematodes were found in the Magellanic penguin, Spheniscus magellanicus (Forster), from Patagonia, Argentina. Ascocotyle (Ascocotyle) patagoniensis Hernández-Orts et al. (2012) is re-described based on new, properly fixed specimens (original material from South American sea lion, Otaria flavescens Shaw, was from frozen hosts). Metacercariae of this species are reported and described for the first time from the heart of the silversides, Odontesthes argentinensis (Valenciennes) and O. smitti (Lahille), from Patagonia. Ascocotyle (Phagicola) cameliae n. sp. is described from the intestine of S. magellanicus. The new species is placed into the subgenus Phagicola Faust, 1920 because of the presence of a single row of circumoral spines and uterine loops and vitelline follicles being confined posterior to the ventral sucker. However, it differs distinctly from other members of this subgenus by the number (19–24) and length (23–31 μm) of massive circumoral spines and by the morphology of the ventrogenital sac with a large, simple gonotyl devoid of refractile bodies. Molecular data (partial 28S rDNA sequences) for both species are also provided. Matching sequences from metacercarial and adult stages helped elucidate partially the life-cycle of A. (A.) patagoniensis. The interspecific relationships and phylogenetic position of Ascocotyle were further assessed on a broad phylogeny on the Opisthorchioidea Looss, 1899. Ascocotyle (P.) ornamentata Shalaby, Esposito, Riegler & Carratù (1993) described from decomposed worms (all circumoral spines were detached) found in a dog in Egypt, with no type-specimens of this species deposited in a repository collection, is considered to be species inquirenda. Elsevier 2019-01-03 /pmc/articles/PMC6350101/ /pubmed/30723670 http://dx.doi.org/10.1016/j.ijppaw.2018.12.008 Text en © 2019 The Authors http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Article
Hernández-Orts, Jesús S.
Georgieva, Simona
Landete, Dennis N.
Scholz, Tomáš
Heterophyid trematodes (Digenea) from penguins: A new species of Ascocotyle Looss, 1899, first description of metacercaria of Ascocotyle (A.) patagoniensis Hernández-Orts, Montero, Crespo, García, Raga and Aznar, 2012, and first molecular data
title Heterophyid trematodes (Digenea) from penguins: A new species of Ascocotyle Looss, 1899, first description of metacercaria of Ascocotyle (A.) patagoniensis Hernández-Orts, Montero, Crespo, García, Raga and Aznar, 2012, and first molecular data
title_full Heterophyid trematodes (Digenea) from penguins: A new species of Ascocotyle Looss, 1899, first description of metacercaria of Ascocotyle (A.) patagoniensis Hernández-Orts, Montero, Crespo, García, Raga and Aznar, 2012, and first molecular data
title_fullStr Heterophyid trematodes (Digenea) from penguins: A new species of Ascocotyle Looss, 1899, first description of metacercaria of Ascocotyle (A.) patagoniensis Hernández-Orts, Montero, Crespo, García, Raga and Aznar, 2012, and first molecular data
title_full_unstemmed Heterophyid trematodes (Digenea) from penguins: A new species of Ascocotyle Looss, 1899, first description of metacercaria of Ascocotyle (A.) patagoniensis Hernández-Orts, Montero, Crespo, García, Raga and Aznar, 2012, and first molecular data
title_short Heterophyid trematodes (Digenea) from penguins: A new species of Ascocotyle Looss, 1899, first description of metacercaria of Ascocotyle (A.) patagoniensis Hernández-Orts, Montero, Crespo, García, Raga and Aznar, 2012, and first molecular data
title_sort heterophyid trematodes (digenea) from penguins: a new species of ascocotyle looss, 1899, first description of metacercaria of ascocotyle (a.) patagoniensis hernández-orts, montero, crespo, garcía, raga and aznar, 2012, and first molecular data
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6350101/
https://www.ncbi.nlm.nih.gov/pubmed/30723670
http://dx.doi.org/10.1016/j.ijppaw.2018.12.008
work_keys_str_mv AT hernandezortsjesuss heterophyidtrematodesdigeneafrompenguinsanewspeciesofascocotylelooss1899firstdescriptionofmetacercariaofascocotyleapatagoniensishernandezortsmonterocrespogarciaragaandaznar2012andfirstmoleculardata
AT georgievasimona heterophyidtrematodesdigeneafrompenguinsanewspeciesofascocotylelooss1899firstdescriptionofmetacercariaofascocotyleapatagoniensishernandezortsmonterocrespogarciaragaandaznar2012andfirstmoleculardata
AT landetedennisn heterophyidtrematodesdigeneafrompenguinsanewspeciesofascocotylelooss1899firstdescriptionofmetacercariaofascocotyleapatagoniensishernandezortsmonterocrespogarciaragaandaznar2012andfirstmoleculardata
AT scholztomas heterophyidtrematodesdigeneafrompenguinsanewspeciesofascocotylelooss1899firstdescriptionofmetacercariaofascocotyleapatagoniensishernandezortsmonterocrespogarciaragaandaznar2012andfirstmoleculardata