Related Experiment Video
Updated: May 3, 2026

Author Spotlight: Soybean Hairy Root Transformation for the Analysis of Gene Function
Published on: May 5, 2023
Glutamate dehydrogenase activity in soybean, and the effect on it of amino acids and growth substances
1Department of Botany, University of Minnesota, Minneapolis.
Abstract:
Glutamate dehydrogenase (GDH) is largely particulate in soybean, and its specific activity is much higher in roots than in leaflets. The specific activity of GDH in soybean callus is considerably lowered by glycine and leucine and is markedly increased by glutamate, tyrosine, phenylalanine, and especially serine. Increasing concentrations of indoleacetic acid increase the specific activity of GDH in callus far more than they increase either fresh weight or specific activity of malate dehydrogenase. Increasing kinetin also causes an increase in the specific activity of GDH, but mainly at low indoleacetic acid concentrations.
Related Concept Videos
Amino Acid Biosynthetic Pathways
Overview of Metabolism
Plant Metabolism
Sunlight, the primary source of energy in plants, is first absorbed by the chlorophyll pigments present in their leaves. Plants then use this energy to carry out photosynthesis, where water is oxidized into oxygen and carbon dioxide...
Inorganic Nitrogen Assimilation

