Contractlity in Spirostomum provides for nonelectrogenic calcium regulation through energy-dissipative metabolic processes in the absence of membrane excitability.
D000818:Animals; D001693:Biological Transport, Active; D002118:Calcium / Q000378:metabolism*; D002746:Chlorpromazine / Q000494:pharmacology; D016798:Ciliophora / Q000378:metabolism / Q000502:physiology*; D004024:Dicyclohexylcarbodiimide / Q000494:pharmacology; D009249:NADP / Q000378:metabolism; D010619:Phenazines / Q000037:antagonists & inhibitors / Q000494:pharmacology
D010619:Phenazines; D009249:NADP; D004024:Dicyclohexylcarbodiimide; D002118:Calcium; D002746:Chlorpromazine