Salt-Stimulated Adenosine Triphosphatases from Carrot, Beet, and Chara Australis

Soluble adenosine triphosphatases (ATPases) from carrot, beetroot, and the fresh-water alga Ohara australi8 were activated by sodium and potassium chlorides, but not by choline chloride, and were inhibited by potassium sulphate and fluoride. Ouabain was not inhibitory, and Na+-K+ synergism of the type found with animal "transport" ATPases was not observed.

Download Full-text

A POLYSACCHARIDE FROM THE BLUE-GREEN ALGA, ANABAENA CYLINDRICA

Canadian Journal of Chemistry ◽

10.1139/v54-131 ◽

1954 ◽

Vol 32 (11) ◽

pp. 999-1004 ◽

Cited By ~ 47

Author(s):

C. T. Bishop ◽

G. A. Adams ◽

E. O. Hughes

Keyword(s):

Acid Hydrolysis ◽

Fresh Water ◽

Green Alga ◽

Culture Medium ◽

Glucuronic Acid ◽

Molar Ratio ◽

Blue Green Alga ◽

Anabaena Cylindrica ◽

Chemical Homogeneity ◽

Fresh Water Alga

A complex polysaccharide has been isolated from the fresh-water alga, Anabaena cylindrica, grown in a synthetic culture medium. Prolonged acid hydrolysis yielded glucose, xylose, glucuronic acid, galactose, rhamnose, and arabinose in a molar ratio of 5: 4: 4: 1: 1: 1. Chemical fractionations of the polysaccharide material from solution in cupriethylenediamine, and of its acetate from organic solvents indicated chemical homogeneity.

Download Full-text

Importance of chloride for the correction of chronic metabolic alkalosis in the rat

AJP Renal Physiology ◽

10.1152/ajprenal.1987.253.5.f1031 ◽

1987 ◽

Vol 253 (5) ◽

pp. F1031-F1039 ◽

Cited By ~ 2

Author(s):

B. M. Wall ◽

G. V. Byrum ◽

J. H. Galla ◽

R. G. Luke

Keyword(s):

Plasma Volume ◽

Metabolic Alkalosis ◽

Choline Chloride ◽

Plasma Renin ◽

Sodium Balance ◽

Sprague Dawley ◽

Volume Contraction ◽

Chloride Depletion ◽

Sprague Dawley Rats ◽

Sodium And Potassium

To determine whether chloride repletion without sodium could correct chronic chloride depletion metabolic alkalosis (CDA) in Sprague-Dawley rats without volume expansion and without increasing glomerular filtration rate (GFR), CDA was generated by peritoneal dialysis (PD) against 0.15 M NaHCO3 and maintained for 7-10 days by a chloride-restricted diet supplemented with sodium and potassium salts. Control animals were dialyzed against Ringer bicarbonate. The maintenance period of chronic CDA, compared with control, was characterized by hypokalemic metabolic alkalosis (serum TCO2 31.9 +/- 0.6 vs. 23.1 +/- 0.5 meq/l, P less than 0.05), volume contraction (plasma volume 3.76 +/- 0.08 vs. 4.19 +/- 0.22 ml/100 g body wt, P less than 0.05), decreased GFR (838 +/- 84 vs. 1045 +/- 45 microliters.min-1.100 g body wt-1, P less than 0.05), increased plasma renin activity (PRA) (63 +/- 13 vs. 12 +/- 3 ng.ml-1.h-1, P less than 0.05), but unchanged plasma aldosterone concentrations (PAC) (4.1 +/- 1.0 vs. 3.4 +/- 1.6 ng/dl, P = NS). Complete correction of chronic CDA was accomplished by 24 h of ingestion of choline chloride drink, and despite negative sodium balance, neutral potassium balance, continued bicarbonate ingestion, and persistent volume contraction (plasma volume 3.76 +/- 0.08 vs. 3.73 +/- 0.12 ml/100 g body wt pre- and postcorrection, P = NS), GFR remained decreased (659 +/- 87 vs. 1,045 +/- 45 microliters.min-1.100 g body wt-1, P less than 0.05), PRA decreased (63 +/- 13 vs. 33 +/- 5 ng.ml-1.h-1, P less than 0.05), but PAC did not change (4.1 +/- 1.0 vs. 6.1 +/- 1.6 ng/dl, P = NS) after correction of CDA.(ABSTRACT TRUNCATED AT 250 WORDS)

Download Full-text

Biosorption of cadmium and lead from aqueous solution by fresh water alga Anabaena sphaerica biomass

Journal of Advanced Research ◽

10.1016/j.jare.2012.07.004 ◽

2013 ◽

Vol 4 (4) ◽

pp. 367-374 ◽

Cited By ~ 107

Author(s):

Azza M. Abdel -Aty ◽

Nabila S. Ammar ◽

Hany H. Abdel Ghafar ◽

Rizka K. Ali

Keyword(s):

Aqueous Solution ◽

Fresh Water ◽

Cadmium And Lead ◽

Fresh Water Alga

Download Full-text

THE EFFECT OF ADRENOCORTICAL STEROIDS ON THE TISSUE ELECTROLYTE COMPOSITION OF THE FRESH-WATER RAINBOW TROUT (SALMO GAIRDNERI)

Journal of Endocrinology ◽

10.1677/joe.0.0250457 ◽

1963 ◽

Vol 25 (4) ◽

pp. 457-464 ◽

Cited By ~ 13

Author(s):

W. N. HOLMES ◽

D. G. BUTLER

Keyword(s):

Rainbow Trout ◽

Fresh Water ◽

Experimental Period ◽

Sodium Concentration ◽

Significant Rise ◽

Salmo Gairdneri ◽

Plasma Sodium ◽

Adrenocortical Activity ◽

Transient Rise ◽

Sodium And Potassium

SUMMARY The effects were studied of cortisol, corticosterone and aldosterone on the concentrations of sodium and potassium in muscle and blood plasma and on water content of muscle in the fresh-water rainbow trout (Salmo gairdneri). These steroids appeared to cause a loss in plasma sodium throughout the 96 hr. experimental period. An initial rise in muscle sodium was observed during the first 24 hr. after commencement of the treatments. The subsequent decline in muscle sodium was interrupted by a transient rise followed by a continuing decline. The effect of these hormones on the potassium concentrations in plasma was variable, although there was a significant rise in the potassium concentration in muscle during the period of decline in sodium concentration. The significance of these results in relation to the possible enhanced adrenocortical activity of the trout during adaptation to a marine environment is discussed.

Download Full-text

Kinetic study of Na+ and Cl~ exchanges in fresh water eels following intravascular infusion of sodium chloride, sodium sulfate and choline chloride

Comparative Biochemistry and Physiology Part A Physiology ◽

10.1016/0300-9629(79)90078-1 ◽

1979 ◽

Vol 62 (2) ◽

pp. 415-422 ◽

Cited By ~ 1

Author(s):

N Mayer-Gostan ◽

R Kirsch

Keyword(s):

Sodium Chloride ◽

Kinetic Study ◽

Fresh Water ◽

Sodium Sulfate ◽

Choline Chloride

Download Full-text

Properties of sodium- and potassium-activated adenosine triphosphatases of rat brain—effect of cyclopropane and other agents modifying enzyme activity

Biochemical Pharmacology ◽

10.1016/0006-2952(69)90119-1 ◽

1969 ◽

Vol 18 (5) ◽

pp. 1157-1167 ◽

Cited By ~ 12

Author(s):

A.J. Trevor ◽

J.T. Cummins

Keyword(s):

Enzyme Activity ◽

Rat Brain ◽

Adenosine Triphosphatases ◽

Sodium And Potassium

Download Full-text

Effect of Adrenergic Drugs on the Lantern of the Larval PHOTURIS FIREFLY

Journal of Experimental Biology ◽

10.1242/jeb.48.2.381 ◽

1968 ◽

Vol 48 (2) ◽

pp. 381-387

Author(s):

ALBERT D. CALRLSON

Keyword(s):

Potassium Concentration ◽

Choline Chloride ◽

High Potassium ◽

Adrenergic Drugs ◽

Significant Difference ◽

Receptor Interactions ◽

Intense Luminescence ◽

Drug Receptor ◽

High Potassium Concentration ◽

Sodium And Potassium

1. A number of adrenergic drugs were tested for their ability to induce luminescence in the extirpated lantern of the firefly larva. The drugs produce sigmoid doseresponse curves characteristic of drug-receptor interactions when drug concentration is plotted against either maximum intensity or maximum rate of intensity rise. 2. Amphetamine and saline of high potassium concentration induce intense luminescence in freshly extirpated lanterns but act only weakly or not at all in lanterns suffering from treatment by reserpine injection 48 hr. previously. 3. No significant difference in response to norepinephrine was observed in lanterns immersed in standard saline, 0.32 M sucrose, 0.16 M choline chloride or 0.16 M-NaCl2 but 0.107 M-CaCl2 considerably slowed the response. 4. Some generalizations concerning structural character and effectiveness in inducing luminescence were made by comparing the drugs tested. It was not possible to describe the mode of action of the drugs. The observation, however, that solutions lacking sodium and potassium did not significantly alter the response was felt to argue against the action of the adrenergic drugs in affecting ion movement across the photocyte membrane.

Download Full-text