Biosynthesis of cell-wall polysaccharides in cultured carrot cells

T Asamizu, A Nishi


Biosynthesis of the cell wall in carrot cells (Daucus carota L.) cultured in a synthetic liquid medium was studied by measuring the incorporation of radioactive glucose and myo-inositol (MI). When the cells were fed with [(14)C]glucose in the presence of 0.01% MI, the label soon appeared in the neutral sugars in the cell wall but little radioactivity was found in the uronic-acid residues even after a prolonged incubation. On the other hand, radioactivity derived from [(3)H]MI was found to be distributed among uronic acids and pentoses but not in the hexose residues in the wall. The data indicate that MI is an important intermediate for the synthesis of acidic sugars in the wall of cultured carrot cells.


Dec 1, 1970·The Biochemical Journal·P J Harris, D H Northcote
Jan 1, 1967·The Biochemical Journal·R W StoddartD H Northcote
Oct 1, 1962·Analytical Biochemistry·T BITTER, H M MUIR
Jan 1, 1968·Plant Physiology·J E DeverA Kivilaan
Oct 1, 1977·Plant Physiology·D J NevinsW H Loescher
Oct 1, 1963·The Biochemical Journal·P M Ray

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