THE ROLE OF SERTOLI CELLS IN THE ORGANIZATION OF SPERM BUNDLES IN THE TESTIS OF SADURIA ENTOMON (LINNAEUS, 1758) (ISOPODA, VALVIFERA)

作者: Zofia Hryniewiecka-Szyfter , Elzbieta Gabala , Adam Babula

DOI: 10.1163/156854099504022

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摘要: Ultrastructural observations show that in Saduria entomon (L., 1758) sperm bundles are organized already the testis, and a crucial function this process is played by Sertoli cells, whose protrusions connected with maturing spermatids. The specific arrangement of spermatids around cell protrusion their turned-out tails lying centrally channels reflect spermatozoa later bundle. One might assume, therefore, pattern along which organized, results from structure, made possible way lumen testis penetrated cells. A further role cells to produce secrete matrix components precursor material for extracellular tubules. Both structures permanent elements isopods. In S. tubules have diameter 80 nm, assembling proceeds close contact membrane protrusion. Des ultrastructurales montrent que, chez 1758), les masses spermatiques sont deja organisees dans le testicule et qu'un processus est joue par cellules de Sertoli, dont connectees avec spermatides en maturation. L'arrangement specifique ces dernieres autour d'une cellule leurs queues retournees position centrale canaux reflete l'arrangement des spermatozoodes une masse ulterieure. On peut ce fait presumer que modele suivant lequel organisees, qui resulte leur structure specifique, rendu la facon laquelle penetrent testicule. Un autre produire secreter composants matrice materiel precurseur pour extracellulaires. Les deux permanents isopodes. Chez entomon, extracellulaires ont un diametre assemblage s'effectue etroit Sertoli.

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