AN ULTRASTRUCTURAL-STUDY OF SPERMATOGENESIS IN HELCION PELLUCIDUS (GASTROPODA, PROSOBRANCHIA)

• Tipo: Artigo em Revista Científica Internacional
• Data: 1994

Autores

sousa, m (Autor) ICBAS; OLIVEIRA, E (Autor) Outra

Revista

Título: International journal of invertebrate reproduction and development

Vol. 26

Páginas: 119-125

ISSN: 0168-8170

Editora: Taylor & Francis

Indexação

ISI Web of Knowledge - 13 Citações

Scopus - 13 Citações

Outras Informações

ID Authenticus: P-001-JWX

DOI: 10.1080/07924259.1994.9672408

Abstract (EN): In Helcion pellucidus the cytoplasm of spermatogonia contains granulo-fibrillar dense bodies, a Golgi apparatus and a pair of centrioles. In primary spermatocytes a flagellum arises and putative small dense proacrosomal vesicles are formed from golgian activity. The mature spermatozoon is of the primitive type and does not contain a perforatorium. Silver stained the centriolar fossa, the periphery of centrioles and the pericentriolar complex, while phosphotungstic acid-chromic acid did not stain the acrosome. Similar cytochemical results were obtained in Patella rustica. The different morphological aspects of spermatogenesis in Patellogastropoda and Archaeogastropoda and the use of silver and PTA stainings in the Mollusca are reviewed and discussed.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7