Ortholinea auratae n. sp. (Myxozoa, Ortholineidae) infecting the urinary bladder of the gilthead seabream Sparus aurata (Teleostei, Sparidae), in a Portuguese fish farm

• Tipo: Artigo em Revista Científica Internacional
• Data: 2014

Autores

Luis F Rangel (Autor) Outra; Sonia Rocha (Autor) Outra; Muhammad H Borkhanuddin (Autor) Outra; Gabor Cech (Autor) Outra; Ricardo Castro (Autor) Outra; Graca Casal (Autor) Outra; Carlos Azevedo (Autor) Outra; Ricardo Severino (Autor) Outra; Csaba Szekely (Autor) Outra; Maria J Santos (Autor) FCUP

Revista

Título: Parasitology Research

Vol. 113

Páginas: 3427-3437

ISSN: 0932-0113

Editora: Springer Nature

Indexação

ISI Web of Knowledge - 15 Citações

Scopus - 0 Citações

Classificação Científica

FOS: Ciências médicas e da saúde > Ciências da saúde

Outras Informações

ID Authenticus: P-009-SNE

DOI: 10.1007/s00436-014-4008-4

Abstract (EN): A new myxosporean species, Ortholinea auratae n. sp., is described from the gilthead seabream, Sparus aurata Linnaeus, 1758 (Teleostei, Sparidae) from a fish farm in Algarve, Portugal. Plasmodia and spores were found in the urinary bladder and, less frequently, in the posterior kidney. Plasmodia were polymorphic, presenting an irregular cellular membrane due to the presence of several peripheral projections, which in turn were covered by a glycocalyx-like sheet. Mature spores were subspherical in valvular view and ellipsoidal in sutural view, measuring 9.0 +/- 0.3 (8.2-10.1) mu m in length, 8.3 +/- 0.4 (7.5-9.1) mu m in width, and 7.2 +/- 0.5 (6.3-8.4) mu m in thickness. The two valves comprising the spores displayed an intricate pattern of surface ridges and were also enveloped by a glycocalyx-like sheet. Two subspherical polar capsules, 3.2 +/- 0.1 (2.9-3.6) mu m long and 2.7 +/- 0.1 (2.4-2.9) mu m wide, were located at the anterior pole and displayed divergent orientation. The polar filament coiled in three to four turns. The comprehensive analysis of the parasite's ultrastructural observations and molecular data for the small subunit (SSU) ribosomal DNA (rDNA) gene identify O. auratae n. sp. as a new species, clustering together with other myxosporeans infecting the excretory system to form a subclade of the main freshwater clade.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 11