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INFLUENCE OF PROLACTIN ON THE ULTIMOBRANCHIAL BODIES OF BUFO VIRIDIS
in Israel Journal of Ecology and EvolutionSearch for other papers by DVORAH BOSCHWITZ in
Current site
Google Scholar
Prolactin effects on the behaviour and on the ultimobranchial body (UBB) of the toad Bufo viridis were investigated since prolactin (or a similar substance) occurs in the adenohypophysis of certain amphibians and induces a water-drive in certain salamanders, and because previous investigations point to the probable dependence of B. viridis' UBB on its ecological conditions. Toads (N=33; size, 26–60 mm; controls, N= 30) were injected with prolactin (courtesy U.S. National Inst, of Health). Whereas controls remained quiet, injected toads were active, restless, and appeared to strive to escape. This behaviour is attributed to the initiation of a water-drive. Histological examination revealed drastic changes in the UBB of injected toads, culminating in the formation of enormous cysts which contain undifferentiated clotted material. These are interpreted as a sign of extreme exhaustion of the UBB following its over-stimulation. These results suggest that the UBB is influenced by prolactin and is involved in the hormonal mechanism of migration to a water-body.
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Boschwitz D.The ultimobranchial body of the Anura of Israel Herpetologica 1960a 16 91 100
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Boschwitz D.The influence of the hypophysis and the thyroid on the ultimobranchial body of the Anura of Israel J. Embryol. exp. Morph 1960b 8 425 436
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Grant JR.W., Grant J.A.Water-drive studies on hypophysectomized efts of Diemictylus viridescens, part I: The role of lactogenic hormone Biol. Bull 1958 114 1
| Insgesamt | Letzte 365 Tage | In den letzten 30 Tagen | |
|---|---|---|---|
| Aufrufe von Kurzbeschreibungen | 177 | 49 | 11 |
| Gesamttextansichten | 7 | 0 | 0 |
| PDF-Downloads | 3 | 0 | 0 |
INFLUENCE OF PROLACTIN ON THE ULTIMOBRANCHIAL BODIES OF BUFO VIRIDIS
in Israel Journal of Ecology and EvolutionSearch for other papers by DVORAH BOSCHWITZ in
Current site
Google Scholar
PubMed
Prolactin effects on the behaviour and on the ultimobranchial body (UBB) of the toad Bufo viridis were investigated since prolactin (or a similar substance) occurs in the adenohypophysis of certain amphibians and induces a water-drive in certain salamanders, and because previous investigations point to the probable dependence of B. viridis' UBB on its ecological conditions. Toads (N=33; size, 26–60 mm; controls, N= 30) were injected with prolactin (courtesy U.S. National Inst, of Health). Whereas controls remained quiet, injected toads were active, restless, and appeared to strive to escape. This behaviour is attributed to the initiation of a water-drive. Histological examination revealed drastic changes in the UBB of injected toads, culminating in the formation of enormous cysts which contain undifferentiated clotted material. These are interpreted as a sign of extreme exhaustion of the UBB following its over-stimulation. These results suggest that the UBB is influenced by prolactin and is involved in the hormonal mechanism of migration to a water-body.
| Insgesamt | Letzte 365 Tage | In den letzten 30 Tagen | |
|---|---|---|---|
| Aufrufe von Kurzbeschreibungen | 177 | 49 | 11 |
| Gesamttextansichten | 7 | 0 | 0 |
| PDF-Downloads | 3 | 0 | 0 |
