ULTRASTRUCTURAL ASPECTS OF ELLIPSOMYXA MUGILIS (MYXOZOA: CERATOMYXIDAE) SPORES AND DEVELOPMENTAL STAGES IN NEREIS DIVERSICOLOR (POLYCHAETA: NEREIDAE)

• Tipo: Artigo em Revista Científica Internacional
• Data: 2012

Autores

Luis Filipe Rangel (Autor) Outra; Carlos Azevedo (Autor) Outra; Graca Casal (Autor) Outra; Maria Joao Santos (Autor) FCUP

Revista

Título: Journal of Parasitology

Vol. 98

Páginas: 513-519

ISSN: 0022-3395

Editora: American Society of Parasitology

Indexação

ISI Web of Knowledge - 6 Citações

Scopus - 9 Citações

Classificação Científica

FOS: Ciências médicas e da saúde > Ciências da saúde

Outras Informações

ID Authenticus: P-002-99A

DOI: 10.1645/ge-3005.1

Abstract (EN): The ultrastructure of the spores and developmental stages of Ellipsomyxa mugilis in Nereis diversicolor were studied by transmission electron microscopy. The ultrastructure features and the developmental stages show many similarities with the general pattern described for other actinospores. However, several new features are definitely worth noting. For example, tetranucleated cells precede the formation of the initial pansporocyst, which preserves the 2 original enveloping cells until the end of sporogony. In the initial stages of sporogony, the future sporoplasm cell acquires the first secondary cell by an engulfment process. In the final stage of sporogony, spores are formed by a sporoplasm with 2 secondary cells and 1 somatic nucleus, and the polar capsule has a polar filament with a helicoidal arrangement possessing 7-8 coils.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7