Metabolism of myo-Inositol and growth in various sugars of suspension-cultured tobacco cells

S Harran, D B Dickinson


Tobacco (Nicotiana tabacum L.) cells were cultured in a liquid medium which contained sucrose as a source of carbon and energy. Various cell-wall constituents and wall precursors (L-arabinose, D-xylose, D-galactose, D-mannose, D-glucuronate, myo-inositol) were added to cells growing in this medium to by-pass possible rate-limiting steps in the relevant metabolic pathways. None of these compounds stimulated growth as measured by increase in fresh weight; myo-inositol did cause a slight increase and L-arabinose a decrease in dry weight accumulation compared to controls grown on sucrose only. Although myo-inositol was not needed for rapid growth, tracer level amounts of [2-(3)H]myo-inositol were rapidly absorbed and metabolized. Label was incorporated into the uronide and pentose residues of cell walls and exocellular polysaccharide.


Aug 1, 1965·Experimental Cell Research·P Filner
Aug 1, 1959·Canadian Journal of Biochemistry and Physiology·E G BLIGH, W J DYER
Jul 1, 1967·Plant Physiology·D J NevinsP Albersheim
Jul 1, 1970·Plant Physiology·C D UpperG T Haberlach

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Jan 1, 1984·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·S V Rao
Jan 1, 1978·Planta·I B Maiti, F A Loewus
Sep 1, 1984·Journal of Plant Physiology·G Staudt

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