scholarly journals Studies on 3-Indoleacetic Acid Metabolism. V. Effect of Calcium Ions on 3-indoleacetic Acid Uptake and Metabolism by Pea Roots

1960 ◽  
Vol 35 (2) ◽  
pp. 220-224 ◽  
Author(s):  
W. A. Andreae ◽  
M. W. H. Van Ysselstein
Keyword(s):  
Calcium Ions ◽  
Indoleacetic Acid ◽  
Acid Metabolism ◽  
Acid Uptake ◽  
Pea Roots ◽  
Uptake And Metabolism

scholarly journals Studies on 3-indoleacetic acid metabolism. VII. Metabolism of radioactive 3-indoleacetic acid by pea roots

1961 ◽  
Vol 36 (6) ◽  
pp. 783-787 ◽  
Author(s):  
W. A. Andreae ◽  
J. R. Robinson ◽  
M. W. H. Van Ysselstein
Keyword(s):  
Indoleacetic Acid ◽  
Acid Metabolism ◽  
Pea Roots

scholarly journals Rapid Effects of Indoleacetic Acid and Ethylene on the Growth of Intact Pea Roots

1975 ◽  
Vol 55 (3) ◽  
pp. 443-447 ◽  
Author(s):  
Wilfried E. Rauser ◽  
Roger F. Horton
Keyword(s):  
Indoleacetic Acid ◽  
Pea Roots

Fetal hepatic and umbilical uptakes of glucogenic substrates during a glucagon-somatostatin infusion

2002 ◽  
Vol 282 (3) ◽  
pp. E542-E550 ◽  
Author(s):  
Cecilia Teng ◽  
Frederick C. Battaglia ◽  
Giacomo Meschia ◽  
Michael R. Narkewicz ◽  
Randall B. Wilkening
Keyword(s):  
Amino Acid ◽  
Acid Metabolism ◽  
Fetal Liver ◽  
Amino Acid Uptake ◽  
Hepatic Uptake ◽  
High Rate ◽  
Acid Uptake ◽  
Glucose Carbon ◽  
Ovine Fetal ◽  
Equivalent Reduction

To test the hypothesis that fetal hepatic glutamate output diverts the products of hepatic amino acid metabolism from hepatic gluconeogenesis, ovine fetal hepatic and umbilical uptakes of glucose and glucogenic substrates were measured before and during fetal glucagon-somatostatin (GS) infusion and during the combined infusion of GS, alanine, glutamine, and arginine. Before the infusions, hepatic uptake of lactate, alanine, glutamine, arginine, and other substrates was accompanied by hepatic output of pyruvate, aspartate, serine, glutamate, and ornithine. The GS infusion induced hepatic output of 1.00 ± 0.07 mol glucose carbon/mol O2 uptake, an equivalent reduction in hepatic output of pyruvate and glutamate carbon, a decrease in umbilical glucose uptake and placental uptake of fetal glutamate, an increase in hepatic alanine and arginine clearances, and a decrease in umbilical alanine, glutamine, and arginine uptakes. The latter result suggests that glucagon inhibits umbilical amino acid uptake. We conclude that fetal hepatic pyruvate and glutamate output is part of an adaptation to placental function that requires the fetal liver to maintain both a high rate of catabolism of glucogenic substrates and a low rate of gluconeogenesis.

Essential fatty acid uptake and metabolism in the developing rodent brain

Lipids ◽  
1996 ◽  
Vol 31 (1) ◽  
pp. S103-S107 ◽  
Author(s):  
Robert J. Pawlosky ◽  
Glenn Ward ◽  
Norman Salem
Keyword(s):  
Fatty Acid ◽  
Essential Fatty Acid ◽  
Fatty Acid Uptake ◽  
Acid Uptake ◽  
Rodent Brain ◽  
Uptake And Metabolism

scholarly journals pH Affects 1H-indole-3-butyric Acid Uptake but not Metabolism during the Initiation Phase of Adventitious Root Induction in Apple Microcuttings

1998 ◽  
Vol 123 (1) ◽  
pp. 6-10 ◽  
Author(s):  
James F. Harbage ◽  
Dennis P. Stimart ◽  
Carol Auer
Keyword(s):  
Butyric Acid ◽  
High Performance ◽  
Root Formation ◽  
Root Induction ◽  
Acid Uptake ◽  
Root Initiation ◽  
Medium Ph ◽  
Initiation Phase ◽  
Maximum Root ◽  
Uptake And Metabolism

The influence of root initiation medium pH on root formation was investigated in relation to uptake and metabolism of applied IBA in microcuttings of Malus ×domestica Borkh. `Gala' and `Triple Red Delicious'. Root formation and uptake of H3-IBA were related inversely to root initiation medium pH. Maximum root count (10.3 roots) and IBA uptake were observed at pH 4.0. Regardless of pH, overall root count of `Gala' was higher (13.5 roots) than `Triple Red Delicious' (4 roots). Uptake of IBA was highest at pH 4.0 for `Gala' (1.7% uptake) and at pH 4 and 5 for `Triple Red Delicious' (0.75% uptake). Metabolism of IBA was the same regardless of root initiation medium pH or cultivar examined. One-half of the IBA taken up was converted to a compound that coeluted with IBAsp during high-performance liquid chromatography. Apparently, pH regulates root formation by affecting IBA uptake but not metabolism. The level of auxin in tissue appeared unrelated to root formation between genotypes. Chemical names used: 1H-indole-3-butyric acid (IBA); 5-H3-indole-3-butyric acid (H3-IBA); indole-3-butrylaspartic acid (IBAsp).

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