IMIS

Publicaties | Instituten | Personen | Datasets | Projecten | Kaarten
[ meld een fout in dit record ]mandje (0): toevoegen | toon Print deze pagina

Spermatogenesis and the structure of the testes in Isodiametra pulchra (Isodiametridae, Acoela)
Boone, M.; Willems, M.; Claeys, M.; Artois, T. (2011). Spermatogenesis and the structure of the testes in Isodiametra pulchra (Isodiametridae, Acoela). Acta Zool. (Stockh.) 92(2): 101-108. http://dx.doi.org/10.1111/j.1463-6395.2010.00481.x
In: Acta Zoologica (Stockholm). Svenska Bokfoerlaget: Stockholm. ISSN 0001-7272; e-ISSN 1463-6395, meer
Peer reviewed article  

Beschikbaar in  Auteurs 

Trefwoorden
    Acoela [WoRMS]
    Marien/Kust
Author keywords
    Acoela; spermatogenesis; ultrastructure; germline; Bilateria

Auteurs  Top 

Abstract

    Spermatogenesis and the structure of the testes were studied ultrastructurally in Isodiametra pulchra (Smith and Bush, Transactions of the American Microscopical Society 1991; 110: 12; Hooge and Tyler, Journal of zoological systematics and evolutionary research 2005; 43: 100). The testes are paired, compact, non-follicular and lie dorsally and dorso-laterally to the paired ovaries, partially enfolding them. All stages of spermatogenesis, including spermiogenesis, are described at the ultrastructural level and their spatial organization within the testes is discussed. The cells at the early stages of spermatogenesis (spermatogonia and spermatocytes) are located on the dorsal and dorso-lateral sides of the testes, while the late stages (spermatids and filiform spermatozoa with 9+2 axonemes) lie at the ventral and inner periphery of the testes, adjacent to ovaries. All the cell types can be found both at the anterior and the posterior end of the testes. The value of the structure of the testes as a phylogenetic marker is addressed.


Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid Top | Auteurs