Macrophages,a normal component in seasonally involuting testes of the swan,Cygnus olor |
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| Authors: | Dr. H. Breucker |
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| Affiliation: | (1) Arbeitsgruppe Kinematische Zellforschung im Fachbereich Biologie der Johann Wolfgang GoetheUniversität, Frankfurt/M, Germany;(2) Max Planck-Institut für Hirnforschung, Deutschordenstr. 46, D-6000 Frankfurt/M, Federal Republic of Germany |
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| Abstract: | Summary In the swan, Cygnus olor, spermatogenesis shows a pronounced seasonal cycle. During the long involution phase a transient invasion of macrophages into the seminiferous tubules regularly takes place at the height of regression prior to total rest. These macrophages are involved in the additional disposal of supernumerary and degenerating premature germ cells, at a time when the Sertoli cells are already filled with phagolysosomes. |
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| Keywords: | Poecilia reticulata Osmoregulation Chloride cells Prolactin Fish skin |
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