The ionic basis of membrane potential changes from before fertilization through the first cleavage in the egg of the frog Rana cameranoi


Erdogan S. , LOGOGLU G., OZGUNEN T.

GENERAL PHYSIOLOGY AND BIOPHYSICS, cilt.15, ss.371-387, 1996 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Cilt numarası: 15 Konu: 5
  • Basım Tarihi: 1996
  • Dergi Adı: GENERAL PHYSIOLOGY AND BIOPHYSICS
  • Sayfa Sayıları: ss.371-387

Özet

Experiments were performed to identify the ionic basis of membrane potential changes in the Rana cameranoi egg, from prior to fertilization through the first cleavage. The membrane potential was monitored continuously during this period. Ten per cent Ringer was used as the recording solution in the control group. The effects of Na+ or Ca2+ conductances were observed by altering external concentrations of these ions. K+ and Cl- conductances were tested by adding channel blockers of these ions (TEA and SITS, respectively) to the extracellular medium.