The role of haloids (bromine and iodine) in the metamorphosis of amphibia (original) (raw)

Summary

The author compared the effect of bromine and iodine on metamorphosis ofAmblystoma mexicanum 52 axolotls were subjected to the action of thyroidin (0.01) and haloid salts: 0.05% NaI solution in the second, 0.025% NaBr and 0.25% NaI in the third and fourth series of experiments. Apart from thyroidin no other additional salts were introduced.

As shown, during thyroidin action bromine and iodine salts tend to accelerate the metamorphosis of A.mexicanum, by 5–10 days. Bromides exert a higher effect on the primary metamorphosis stages. Because of these, the dynamics of metamorphosis under the effect of bromides differs from that under the action of iodides. A suggestion is made that brimine participates in the thyroid gland function.

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  1. The Laboratory of Comparative Ontogenesis of the Nervous System of the Institute of Normal and Pathological Physiology, Akad. Med. Nauk SSSR, Moscow
    O. A. Krylov

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  1. O. A. Krylov
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Krylov, O.A. The role of haloids (bromine and iodine) in the metamorphosis of amphibia.Bull Exp Biol Med 50, 724–727 (1961). https://doi.org/10.1007/BF00796048

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