Potassium Ion Activity in the Cytoplasm and the Vacuole of Cells of Chara and Griffithsia

Nature ◽  
1967 ◽  
Vol 216 (5122) ◽  
pp. 1325-1327 ◽  
Author(s):  
L. N. VOROBIEV
Keyword(s):  
Potassium Ion ◽  
Ion Activity

scholarly journals Inhibition of Glycolysis Alters Potassium Ion Transport and Mitochondrial Redox Activity in Rat Brain

1988 ◽  
Vol 8 (6) ◽  
pp. 857-865 ◽  
Author(s):  
Cesar N. Raffin ◽  
Thomas J. Sick ◽  
Myron Rosenthal
Keyword(s):  
Ion Transport ◽  
Iodoacetic Acid ◽  
Potassium Ion ◽  
Redox Activity ◽  
Extracellular Potassium ◽  
Potassium Ion Transport ◽  
Ion Activity ◽  
Inhibition Of Glycolysis ◽  
Glycolytic Inhibitor ◽  
Active Processes

To examine the relationships between brain glycolysis, ion transport, and mitochondrial reduction/oxidation (redox) activity, extracellular potassium ion activity (K+0) and redox shifts of cytochrome oxidase (cytochrome a,a3) were recorded previous to and during superfusion of rat cerebral cortex with the glycolytic inhibitor iodoacetic acid (IAA). IAA produced oxidation of cytochrome a,a3, increased local oxygenation, increased K+0, and, in response to neuronal activation, slowed rates of K+0 reaccumulation. Rates of rereduction of cytochrome a,a3, after the oxidation of this cytochrome by stimulation, were also slowed by IAA. These effects of IAA demonstrate the dependence of K+0 reaccumulation on the integrity of glycolysis, support the concept that active processes are involved in brain ion transport, and suggest a link between ATP supplied by glycolysis and ion transport activity. These data are also compatible with the suggestion that residual dysfunctions after brain ischemia result from derangements in glycolytic functioning rather than from limitations in oxygen availability or oxidative metabolic activity.

Effects of abamectin on intracellular potassium ion activity and membrane potential in dipteran skeletal muscle

1993 ◽  
Vol 37 (1) ◽  
pp. 49-55
Author(s):  
Elizabeth M. Fitzgerald ◽  
Jason Curry ◽  
Mustafa B. A. Djamgoz
Keyword(s):  
Skeletal Muscle ◽  
Membrane Potential ◽  
Potassium Ion ◽  
Intracellular Potassium ◽  
Ion Activity

The effect of temporary hepatic ischemia on liver surface pH and potassium ion activity in the rat

1995 ◽  
Vol 380 (1) ◽  
Author(s):  
M. Knoop ◽  
G. Haller ◽  
J.M. Langrehr ◽  
C. Dobis ◽  
H. Keck ◽  
...  
Keyword(s):  
Potassium Ion ◽  
Hepatic Ischemia ◽  
Surface Ph ◽  
Ion Activity ◽  
Liver Surface

scholarly journals Extracellular Potassium Ion Activity During PGO Spike in Cat Lateral Geniculate Nucleus

SLEEP ◽  
1982 ◽  
Vol 5 (3) ◽  
pp. 213-217 ◽  
Author(s):  
Toyohiko Satoh ◽  
Makoto Sakagucci ◽  
Kunihiro Eguchi
Keyword(s):  
Lateral Geniculate Nucleus ◽  
Potassium Ion ◽  
Extracellular Potassium ◽  
Lateral Geniculate ◽  
Ion Activity

Measurements of Potassium Ion Activity in the Cytoplasm of Living Cells

Nature ◽  
1969 ◽  
Vol 221 (5178) ◽  
pp. 386-387 ◽  
Author(s):  
GILBERT N. LING
Keyword(s):  
Living Cells ◽  
Potassium Ion ◽  
Ion Activity
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