Die Hypophyse und die Geschlechtsdr�sen der Amphibien

Woronzowa, M. A.; Blacher, L. J.

doi:10.1007/bf00575679

Cited by 11 publications

(3 citation statements)

References 12 publications

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“…Ablation of pituitary gland resulting in testicular atrophy was reported by Woronzowa and Blacher (1930) in Amblystoma sp., Pleurodeles waltlii and Triturus cristatus; by Burns and Buysse (1932) in Amblystoma tigrinum; by Bellerby and Hogben (1938) in Xenopus laevis; by Gallien (1938;1940) in Rana temporaria by Rey (1939) in Bufo vulgaris and by Sluiter, van Oordt and Mighorst (1950) in Rana esculenta.…”

mentioning

confidence: 98%

Effect of Pituitary Extracts on the Spermatogenesis of the Green Frog Rana Hexadactyla Lesson

Kasinathan

Basu

1972

Endocrinol Japon

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confidence: 98%

Effect of Pituitary Extracts on the Spermatogenesis of the Green Frog Rana Hexadactyla Lesson

Kasinathan

Basu

1972

Endocrinol Japon

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“…It had been shown (Witschi, 1930) that hypophysectomy in four months old larvae of Triturus results in a distinct underdevelopment of the testes after a few months, while the ovaries are little or not at all retarded during the first year. Woronzowa and Blacher (1930) report the same differences in gonad response for larval Tritons and Axolotls. In case the double hypophysectomy is performed in four month old heterosexual twins, the arrest of the further development of the controlling tests of the male is answered by a renewed growth of the free-martin gonads of the co-twin.…”

Section: Genetical and Developmental Factors Ln Sex Deviations Of Ver...mentioning

confidence: 54%

“…Extensive correlations have been found to exist between hypophysis and sex glands. It was already men-tioned that hypophysectomy arrests gonad development, especially that of the testis (Woronzowa and Blacher, 1930;Witschi, 1930). On the other hand, implantation of hypophysis or injection of anterior lobe extracts promotes the development of the testes of larval Ambystomas , and it stimulates ovulation in mature females (Wolf, 1929;Adams, 1931).…”

Section: Genetical and Developmental Factors Ln Sex Deviations Of Ver...mentioning

confidence: 99%

Sex deviations, inversions, and parabiosis.

Witschi¹

1934

Sex and Internal Secretions: A Survey of Recent Research.

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I. introduction: general theories of sex Gonochorism, hermaphrodism and intersexualityIn many primitive thallophytes and protozoans, morphological and physiological characters do not help to discriminate sexes. However, recent research points to the fact that even in these isogametic organisms, sex is of the same basic nature as in the most differentiated higher forms. The work of Knight, Hartmann and Jollos on primitive algae, Blakeslee and Burgeff on Phycomycetes, and that of Kniep and Brunswick on Basidiomycetes1 gives concurrent evidence that the isogametes (in some cases the gametophytes) can always be divided into two classes with respect to their reactions during fertilization. In the absence of morphological criteria they are sometimes designated as (+) and ( -) sexes, though evidently they correspond to the female and male sexes of higher organisms. The capacity to join in fertilization is the most general expression of sexual nature and the fact that fertilization presupposes a difference between the conjugants is the very foundation of the bisexuality theory.In the course of their work the aforementioned authors have occasionally met with reactions which seemed to be. exceptions to the rule that only opposite sexes conjugate successfully. Hartmann assembles under the term of "relative sexuality" all these interesting cases. Their further analysis indicates that the basic structure of every gamete is bisexual or male-female (MF). What appears as the sex of a gamete or an organism is in fact only the dominant sex, while the entire constitution includes both male and female potentialities.Experiments with higher organisms contribute further evidence in support of the bisexuality theory.

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The effects of extracts of the mammalian hypophysis upon immature salamanders

Burns

Buyse

1931

Anat. Rec.

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Die Hypophyse und die Geschlechtsdr�sen der Amphibien

Cited by 11 publications

References 12 publications

Effect of Pituitary Extracts on the Spermatogenesis of the Green Frog Rana Hexadactyla Lesson

Effect of Pituitary Extracts on the Spermatogenesis of the Green Frog Rana Hexadactyla Lesson

Sex deviations, inversions, and parabiosis.

The effects of extracts of the mammalian hypophysis upon immature salamanders

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