Na-pump sites in the oviduct of Salamandra salamandra (L.) (Amphibia, Urodela)

Using 3H-ouabain autoradiography, Na+-K+-ATPase has been localized on the basolateral membranes of ciliated and nonciliated cells in the oviduct (pars recta, p. convoluta I, II, III) of the European fire salamander, Salamandra salamandra. The mucous and seromucous gland cells of the p. convoluta I, II, III, however, do not show any significant labelling. An asymmetrical distribution of ouabain binding sites is a main feature of transporting epithelia.     

Comparative immunocytological study of prolactin and somatotropin cells in Alytes obstetricans (Laur.) tadpoles raised in groups or isolated]

In the anterior pituitary of Alytes obstetricans Tadpoles in premetamorphic stages, two cell types were localized by cytoimmunological techniques: orangeophilic cells secreting a prolactin-like hormone in the anterior and median region and erythrosinophilic cells secreting growth hormone in a more caudal situation. Both cells are more numerous and stimulated in grouped Tadpoles than in isolated ones.     

Effect of bromocriptine on the "prolactin-like cell" of Nectophrynoides occidentalis (Amphibia, viviparous Anura): optical and electronic microscopical studies]

Bromocriptin has an effect on prolactin-like cells of Nectophryno?des occidentalis. 16 days after delivery, these cells are fully active in normal animals. Retention of secretory granules and myelinic formations have been observed in the prolactin-like cells of females treated by CB 154.     

Visceral and vascular transposition in the viviparous toothcarpxiphophorus maculatus (wagtail strain)

Zusammenfassung Beschreibung des relativ häufigenSitus inversus viscerum beim lebendgebärenden ZahnkarpfenXiphophorus maculatus.