The distribution and nature of gonadotropic cells in the rostral pars distalis of the Atlantic salmon, Salmo salar

B. EKENGREN, J. PEUTE, G. FRIDBERG
1978 Reproduction nutrition development (Print)  
Several techniques were applied to indentify the gonadotropic (GTH) cells in the rostral pars distalis (RPD) of the pituitary in the Atlantic salmon in phases around spawning. The double immuno method with rabbit anti-carp GTH as the first antibody revealed many cells in the RPD with a strong fluorescence. On consecutive sections stained with Herlant's tetrachrome these cells exhibited basophilic reactions. They are distributed all over the RPD, i.e., in small clusters at the periphery, as
more » ... periphery, as islands between the follicles. The cells coincide in fine structure with the « globular » cells demonstrated as GTH cells in teleosts. They contain secretory granules, dense core vesicles and globular inclusions but show great variations in size, morphology and fine structure. Only one GTH cell type could be identified in the RPD.
doi:10.1051/rnd:19780507 fatcat:gsyxjit4sngbdetdqdt6blqnke