Maintenance of the K+ activity gradient in insect muscle compared in diptera and lepidoptera: contributions of metabolic and exchanger mechanisms

@article{Fitzgerald1996MaintenanceOT,
  title={Maintenance of the K+ activity gradient in insect muscle compared in diptera and lepidoptera: contributions of metabolic and exchanger mechanisms},
  author={Fitzgerald and Djamgoz and Dunbar},
  journal={The Journal of experimental biology},
  year={1996},
  volume={199 Pt 8},
  pages={1857-72}
}
Using a comparative approach, the mechanisms involved in maintenance of the transmembrane K+ activity gradients in the larval body-wall muscles of two insects, Phormia terraenovae (Diptera) and Spodoptera exigua (Lepidoptera), have been investigated. Double-barrelled K+-selective microelectrodes were used to obtain simultaneous measurements of intracellular K+ activity and membrane potential, whilst ordinary microelectrodes were used to monitor input resistance. By application of a variety of… CONTINUE READING