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Polysaccharide production in liquid cell suspension cultures of Phleum pratense L.

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Abstract

The production of carbohydrates by cell suspension cultures of Phleum pratense (timothy grass) is described. Extracellular polysaccharides similar in monosaccharide composition to native cell wall polymers were accumulated, together with polymers of fructose (fructans). The fructans had similar properties to the intracellular reserve polymers found in intact plants, and were found in both cells and media of young, slow-growing cultures.

Production of extracellular polysaccharides differed in cultures grown on sucrose or equimolar glucose/fructose as carbon source. These differences were observed only when autoclaved media were used, and were not related to changes in either pH or osmolarity. Autoclaving medium containing radioactive glucose and fructose produced a novel, unidentified labelled compound which was absent in medium containing labelled sucrose.

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Authors and Affiliations

  1. Plant and Cell Biology Department, Welsh Plant Breeding Station, Aberystwyth, Wales, UK

    A. D. Hale, C. J. Pollock & S. J. Dalton

Authors
  1. A. D. Hale
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  2. C. J. Pollock
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  3. S. J. Dalton
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Communicated by P. Matile

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Hale, A.D., Pollock, C.J. & Dalton, S.J. Polysaccharide production in liquid cell suspension cultures of Phleum pratense L.. Plant Cell Reports 6, 435–438 (1987). https://doi.org/10.1007/BF00272776

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  • DOI: https://doi.org/10.1007/BF00272776

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