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dc.contributor.author
Vázquez, Nuria Natalia
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dc.contributor.author
Freeman, Mark
dc.contributor.author
Cremonte, Florencia
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dc.contributor.author
Gilardoni, Carmen Mariangel
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dc.contributor.author
Kristmundsson, Arni
dc.date.available
2023-07-27T11:16:38Z
dc.date.issued
2022-04
dc.identifier.citation
Vázquez, Nuria Natalia; Freeman, Mark; Cremonte, Florencia; Gilardoni, Carmen Mariangel; Kristmundsson, Arni; A phylogenetically unresolved apicomplexan (APXSc) causing swirl lesions in the Tehuelche scallop, Aequipecten tehuelchus, from the Southwest Atlantic coast; Elsevier; International Journal for Parasitology: Parasites and Wildlife; 17; 4-2022; 295-307
dc.identifier.uri
http://hdl.handle.net/11336/205744
dc.description.abstract
The study reports a previously unknown apicomplexan (APXSc) parasite infecting wild scallops Aequipecten tehuelchus (d'Orbigny, 1842) from two separate areas (La Tapera and Punta Conos) of the San José gulf, in Patagonia Argentina. Histology, transmission electron microscope, molecular analyses and in situ hybridization were performed to describe the morphology of APXSc, and confirm its phylogenetic status. The prevalence of APXSc infection was 24% and 72% in scallops from La Tapera and Punta Conos, respectively. Seasonal variation was observed for scallops from La Tapera, recording highest prevalence in summer. A positive relationship between the presence of the APXSc and the size of the scallops was observed. A SSU rDNA consensus sequence of 1758 base pairs was generated which has a 94.8% identity to sequences obtained from a pathogenic apicomplexan parasite infecting Ostrea chilensis in New Zealand, but not closely related to other apicomplexans. The asexual reproduction, i.e. merogony, occurs in the Tehuelche scallop whilst the gamogonic and sporogonic stages were absent, suggesting a yet unknown definitive host. Severe host inflammation response involving fibroblast-like hemocytes surrounding the APXSc in the form of granuloma-like “swirls” is characteristic for this apicomplexan infection. Further studies are needed to reveal the life cycle, and presumable pathogenicity of APXSc.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
AEQUIPECTEN TEHUELCHUS
dc.subject
APICOMPLEXAN SCALLOP
dc.subject
HISTOPATHOLOGY
dc.subject
PHYLOGENY
dc.subject
ULTRASTRUCTURE
dc.subject.classification
Biología Marina, Limnología
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
A phylogenetically unresolved apicomplexan (APXSc) causing swirl lesions in the Tehuelche scallop, Aequipecten tehuelchus, from the Southwest Atlantic coast
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-07-06T11:11:27Z
dc.identifier.eissn
2213-2244
dc.journal.volume
17
dc.journal.pagination
295-307
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Vázquez, Nuria Natalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto de Biología de Organismos Marinos; Argentina
dc.description.fil
Fil: Freeman, Mark. Ross University School of Veterinary Medicine; San Cristóbal y Nieves
dc.description.fil
Fil: Cremonte, Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto de Biología de Organismos Marinos; Argentina
dc.description.fil
Fil: Gilardoni, Carmen Mariangel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto de Biología de Organismos Marinos; Argentina
dc.description.fil
Fil: Kristmundsson, Arni. University of Iceland; Islandia
dc.journal.title
International Journal for Parasitology: Parasites and Wildlife
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/j.ijppaw.2022.03.009
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S2213224422000293
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