[Dependence of the embryonic development of Rana temporaria on incubation conditions in the period from insemination to the first cleavage division].
The R. temporaria embryos at stages from insemination to the 1st cleavage division were incubated for 1 tau 0 in different saline solutions. The subsequent development in the control and after all kinds of treatment proceeded in the same conditions (in settled tap water and at 19-20 degrees). After incubation in the solutions containing potassium and sodium chlorides, bromides or iodides in a concentration of 30 mM, which decreased the amplitude of activation potential and the value of transmembrane currents, the morphogenetic movement during neurulation and, more rarely, gastrulation were accelerated (coefficient of relative velocity 1.16-1.38). After treatment with calcium chloride, gluconate and choline chloride in the same concentration, the morphogenetic processes were delayed (0.85-0.95).
Sharova
L V
LV
Bozhkova
V P
VP
D000818:Animals; D002970:Cleavage Stage, Ovum / Q000187:drug effects / Q000502:physiology*; D005618:Fresh Water; D007314:Insemination; D008564:Membrane Potentials / Q000187:drug effects; D011896:Rana temporaria / Q000196:embryology*; D012965:Sodium Chloride / Q000494:pharmacology; D013997:Time Factors; D014867:Water / Q000494:pharmacology
D014867:Water; D012965:Sodium Chloride
Zavisimost' émbrional'nogo razvitiia Rana temporaria ot usloviĭ inkubatsii v period ot osemeneniia do pervogo deleniia drobleniia.