Reproductive Endocrinology of Amphibians



Amphibians have the same basic repertoire of reproductive hormones as other vertebrates. For example, their hypothalamus synthesizes a decapeptide that is structurally and functionally similar to the gonadotropin-releasing hormone (LH-RH) of mammals. LH-RH stimulates the pituitary gland of amphibians to release two distinct gonadotropins, referred to as follicle-stimulating hormone (FSH) and luteinizing hormone (LH) after the homologous mammalian gonadotropins. The gonadotropins travel through the blood to the gonads and stimulate gametogenesis and the synthesis of steroid hormones (progesterone, 17β-estradiol, testosterone, and 5&#x03B1-dihydrotestosterone). Despite similarities between the reproductive hormones of mammals and amphibians, amphibians are not simply hairless laboratory rats. In many respects, the reproductive endocrinology of amphibians is interesting and unique.


Luteinizing Hormone Sertoli Cell Corpus Luteum Seminiferous Tubule Follicle Cell 
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Selected Readings

  1. Ball, J. N., 1981, Hypothalamic control of the pars distalis in fishes, amphibia and reptiles. Gen. Comp. Endocrinol. 44:135–170.PubMedCrossRefGoogle Scholar
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Copyright information

© Springer Science+Business Media New York 1987

Authors and Affiliations

  1. 1.Department of ZoologyOregon State UniversityCorvallisUSA

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