Ultrastructure of Goussia cruciata (Apicomplexa: Coccidia) infecting the liver of horse mackerel, Trachurus trachurus (L.), from Ibero‐Atlantic waters
Abstract The ultrastructure of developmental stages of Goussia cruciata and the pathology they cause in the liver of Trachurus trachurus (Teleostei: Carangidae) caught off the Galician (North‐West Spain) and Portuguese North Atlantic coasts are described. Each oocyst contained four ellipsoidal sporo...
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crwiley:10.1111/j.1365-2761.2005.00611.x 2024-06-02T08:11:29+00:00 Ultrastructure of Goussia cruciata (Apicomplexa: Coccidia) infecting the liver of horse mackerel, Trachurus trachurus (L.), from Ibero‐Atlantic waters Gestal, C Azevedo, C 2005 http://dx.doi.org/10.1111/j.1365-2761.2005.00611.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2761.2005.00611.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2761.2005.00611.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Diseases volume 28, issue 3, page 125-132 ISSN 0140-7775 1365-2761 journal-article 2005 crwiley https://doi.org/10.1111/j.1365-2761.2005.00611.x 2024-05-03T11:31:26Z Abstract The ultrastructure of developmental stages of Goussia cruciata and the pathology they cause in the liver of Trachurus trachurus (Teleostei: Carangidae) caught off the Galician (North‐West Spain) and Portuguese North Atlantic coasts are described. Each oocyst contained four ellipsoidal sporocysts, with two sporozoites. The sporocyst wall consisted of a thick and dense inner layer with transverse striations and a multi‐lamellated outer layer formed by parallel dense internal bands alternating with lighter areas. The lamellae formed filamentous extensions of the wall. The sporocyst wall striation period was smaller than that observed in G. clupearum , which has a similar habitat. The dehiscence suture, characteristic of the genus, was present in the sporocysts of G. cruciata . The sporocysts were arranged in a symmetrical and characteristic cross shape. A large number of sporocysts with sporozoites were observed in direct contact with host liver cells. No macroscopic lesions were observed. In heavily infected fish, aggregations of oocysts were often enveloped in a ‘yellow body’ composed of amylopectin granules derived from the parasite and necrotic or aggregated host cells. Degenerating parasites were frequently observed in liver tissue. Host inflammatory cells were accumulated near some oocysts. The ultrastructure of the parasite, together with its strict host specificity, confirmed G. cruciata as a separate and valid species. Article in Journal/Newspaper North Atlantic Wiley Online Library Journal of Fish Diseases 28 3 125 132 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract The ultrastructure of developmental stages of Goussia cruciata and the pathology they cause in the liver of Trachurus trachurus (Teleostei: Carangidae) caught off the Galician (North‐West Spain) and Portuguese North Atlantic coasts are described. Each oocyst contained four ellipsoidal sporocysts, with two sporozoites. The sporocyst wall consisted of a thick and dense inner layer with transverse striations and a multi‐lamellated outer layer formed by parallel dense internal bands alternating with lighter areas. The lamellae formed filamentous extensions of the wall. The sporocyst wall striation period was smaller than that observed in G. clupearum , which has a similar habitat. The dehiscence suture, characteristic of the genus, was present in the sporocysts of G. cruciata . The sporocysts were arranged in a symmetrical and characteristic cross shape. A large number of sporocysts with sporozoites were observed in direct contact with host liver cells. No macroscopic lesions were observed. In heavily infected fish, aggregations of oocysts were often enveloped in a ‘yellow body’ composed of amylopectin granules derived from the parasite and necrotic or aggregated host cells. Degenerating parasites were frequently observed in liver tissue. Host inflammatory cells were accumulated near some oocysts. The ultrastructure of the parasite, together with its strict host specificity, confirmed G. cruciata as a separate and valid species. |
format |
Article in Journal/Newspaper |
author |
Gestal, C Azevedo, C |
spellingShingle |
Gestal, C Azevedo, C Ultrastructure of Goussia cruciata (Apicomplexa: Coccidia) infecting the liver of horse mackerel, Trachurus trachurus (L.), from Ibero‐Atlantic waters |
author_facet |
Gestal, C Azevedo, C |
author_sort |
Gestal, C |
title |
Ultrastructure of Goussia cruciata (Apicomplexa: Coccidia) infecting the liver of horse mackerel, Trachurus trachurus (L.), from Ibero‐Atlantic waters |
title_short |
Ultrastructure of Goussia cruciata (Apicomplexa: Coccidia) infecting the liver of horse mackerel, Trachurus trachurus (L.), from Ibero‐Atlantic waters |
title_full |
Ultrastructure of Goussia cruciata (Apicomplexa: Coccidia) infecting the liver of horse mackerel, Trachurus trachurus (L.), from Ibero‐Atlantic waters |
title_fullStr |
Ultrastructure of Goussia cruciata (Apicomplexa: Coccidia) infecting the liver of horse mackerel, Trachurus trachurus (L.), from Ibero‐Atlantic waters |
title_full_unstemmed |
Ultrastructure of Goussia cruciata (Apicomplexa: Coccidia) infecting the liver of horse mackerel, Trachurus trachurus (L.), from Ibero‐Atlantic waters |
title_sort |
ultrastructure of goussia cruciata (apicomplexa: coccidia) infecting the liver of horse mackerel, trachurus trachurus (l.), from ibero‐atlantic waters |
publisher |
Wiley |
publishDate |
2005 |
url |
http://dx.doi.org/10.1111/j.1365-2761.2005.00611.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2761.2005.00611.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2761.2005.00611.x |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Journal of Fish Diseases volume 28, issue 3, page 125-132 ISSN 0140-7775 1365-2761 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1365-2761.2005.00611.x |
container_title |
Journal of Fish Diseases |
container_volume |
28 |
container_issue |
3 |
container_start_page |
125 |
op_container_end_page |
132 |
_version_ |
1800757633608581120 |