Histología del sistema reproductor masculino de <i>Helobdella hyalina</i> (Hirudinea, Glossiphoniidae) en Argentina

A detailed preliminary histological analysis of Helobdella hyalina Ringuelet, 1942 male system from Los Talas, Buenos Aires, Argentina is described. Six pairs of testisacs, located between the crop caeca, form the male reproductive system. Each testisac is clothed by the mesotelium. Inside it, the g...

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Autor principal: Gullo, Bettina Sandra
Formato: Articulo
Lenguaje:Español
Publicado: 2004
Materias:
Ciencias Naturales
Histology
reproductive system
Helobdella
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/133116
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-133116
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Ciencias Naturales
Histology
reproductive system
Helobdella
spellingShingle Ciencias Naturales
Histology
reproductive system
Helobdella
Gullo, Bettina Sandra
Histología del sistema reproductor masculino de <i>Helobdella hyalina</i> (Hirudinea, Glossiphoniidae) en Argentina
topic_facet Ciencias Naturales
Histology
reproductive system
Helobdella
description A detailed preliminary histological analysis of Helobdella hyalina Ringuelet, 1942 male system from Los Talas, Buenos Aires, Argentina is described. Six pairs of testisacs, located between the crop caeca, form the male reproductive system. Each testisac is clothed by the mesotelium. Inside it, the germinal cells are connected to the citophore and develop functional unit called poliplast. The spermatozoa are released into testisacs after the reabsortion of the citophore. Five stages of spermatogenesis are described taking into account the successive maturation stages of germinal cells and the changes in the citophore size. Lining cells and gland cells were found in the seminal vesicle. Five different types of gland cells are placed inside the ejaculatory ducts, as well as two kinds of cells are found in its distal portion: type 1, which produces eosinophilic granular secretion, type 2, with amorphous and slightly eosinophilic. Three distinct gland cells are located in the proximal portion of the duct: type 3, which produces a strongly eosinophilic granular secretion; type 4, with a negative eosinophilic amorphous secretion and type 5, with a basophilic granular secretion. Type 5 gland cells are described for the ducts of this species only.
format Articulo
Articulo
author Gullo, Bettina Sandra
author_facet Gullo, Bettina Sandra
author_sort Gullo, Bettina Sandra
title Histología del sistema reproductor masculino de <i>Helobdella hyalina</i> (Hirudinea, Glossiphoniidae) en Argentina
title_short Histología del sistema reproductor masculino de <i>Helobdella hyalina</i> (Hirudinea, Glossiphoniidae) en Argentina
title_full Histología del sistema reproductor masculino de <i>Helobdella hyalina</i> (Hirudinea, Glossiphoniidae) en Argentina
title_fullStr Histología del sistema reproductor masculino de <i>Helobdella hyalina</i> (Hirudinea, Glossiphoniidae) en Argentina
title_full_unstemmed Histología del sistema reproductor masculino de <i>Helobdella hyalina</i> (Hirudinea, Glossiphoniidae) en Argentina
title_sort histología del sistema reproductor masculino de <i>helobdella hyalina</i> (hirudinea, glossiphoniidae) en argentina
publishDate 2004
url http://sedici.unlp.edu.ar/handle/10915/133116
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AT gullobettinasandra histologyofthemalereproductivesystemofhelobdellahyalinahirudineaglossiphoniidaeinargentina
bdutipo_str Repositorios
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