Plant Physiol. Journal of Pharmacology and Experimental Therapeutics
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Plant Physiology 52:646-650 (1973)
© 1973 American Society of Plant Biologists

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The Conversion of D-Glucose-6-14C to Cell Wall Polysaccharide Material in Zea mays in Presence of High Endogenous Levels of Myoinositol 1

R. M. Robertsa and F. Loewusb

a Department of Biochemistry, University of Florida, Gainsville, Florida 32610, Department of Biology, State University of New York at Buffalo, Buffalo, New York 14214

When corn (Zea mays) roots are supplied with high concentrations of unlabeled myoinositol, the conversion of D-glucose-6-14C to cell wall galacturonic acid is significantly reduced compared to controls, although its incorporation into cell wall glucosyl units remains unchanged. This suggests that, in order to be converted to uronic acid, radiolabel from glucose must first pass through the internal myoinositol pool of the roots.

1 This work was supported by Grant GB 23533 from the National Science Foundation and Grant GM-12422 from the National Institutes of Health. R.M.R. is a recipient of a Career Development Award from the National Institutes of Health.






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Copyright © 1973 by the American Society of Plant Biologists