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

• Type: Article in International Scientific Journal
• Date: 2012

Authors

Luis Filipe Rangel (Author) Other; Carlos Azevedo (Author) Other; Graca Casal (Author) Other; Maria Joao Santos (Author) FCUP

Journal

Title: Journal of Parasitology

Vol. 98

Pages: 513-519

ISSN: 0022-3395

Publisher: American Society of Parasitology

Indexing

ISI Web of Knowledge - 6 Citations

Scopus - 9 Citations

Scientific classification

FOS: Medical and Health sciences > Health sciences

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7