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J Embryol Exp Morphol 4, 139-150 (1956)
Published by The Company of Biologists 1956
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Compensation in the Remaining Pronephros of Triturus after Unilateral Pronephrectomy

H. Fox1

Department of Zoology and Comparative Anatomy, University College London

1 Author's address: Department of Zoology and Comparative Anatomy, University College London, Gower St., W.C.1, U.K.

SUMMARY

As Howland (1916, 1921) originally showed and many other workers have confirmed, an amphibian larva can survive satisfactorily with one pronephros, but it cannot survive bilateral pronephrectomy (Swingle, 1919; Shimasaki, 1930a; and Cambar, 1944 a, b, 1948) unless, as shown by Cambar, the mesonephros has become well established and functional.

The remaining pronephros, when one has been removed, becomes noticeably larger in Rana sylvatica (Swingle, 1919), R. nigromaculata and Bufo vulgaris japonicus (Miura, 1930 a, b), Rana dalmatina and other Anura (Cambar, 1948), Triton alpestris (Machemer, 1929), and Amblystoma punctatum (Howland, 1916, 1921; Detwiler, 1918, p. 520). Hiller (1931) has also studied the problem in the latter species from the functional aspect in parabiotic twinning. However, except for the quantitative papers of Howland and Hiller, both of which appear to suffer from insufficiency of data, there is no information of quantitative nature.


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© The Company of Biologists Ltd 1956