title: [Chronobiological patterns in the course of amphibian metamorphosis].
abstract: Metamorphic rates in Rana temporaria larvae treated with thyroxine and prolactin were observed in different phases of the light-dark cycle. Different hormonal effects on tadpole development were demonstrated depending on the light-dark phases. Thyroxine always accelerated the development. Thyroxine employed at L-D and D-L phases was more effective than in T and D phases. Prolactin retarded metamorphosis in D phase and accelerated in L-D phase. This work demonstrated some temporal relief of hormonal sensitivity of anuran metamorphosis.
authors.forename: Iu A
authors.initials: IuA
authors.lastname: Romanov
authors.forename: M A
authors.initials: MA
authors.lastname: Badretdinov
authors.forename: I F
authors.initials: IF
authors.lastname: Golichenkova
mesh_terms: D000663:Amphibians / Q000502:physiology*; D000818:Animals; D002909:Chronobiology Phenomena / Q000187:drug effects / Q000502:physiology*; D003624:Darkness; D007814:Larva; D008027:Light; D008675:Metamorphosis, Biological / Q000187:drug effects / Q000502:physiology*; D011388:Prolactin / Q000494:pharmacology; D011896:Rana temporaria; D013974:Thyroxine / Q000494:pharmacology; D013997:Time Factors
chemical_list: D011388:Prolactin; D013974:Thyroxine
vernacular_title: Khronobiologicheskie zakonomernosti techeniia metamorfoza amfibiĭ.