Abstract
The concentrations of 17 nucleotides and three nucleosides have been determined in a batch suspension culture of Datura innoxia using a new procedure for extraction, purification and high-performance liquid chromatography separation of these compounds. The nucleotide pools change appreciably in the different phases of growth. These changes indicate the preparation for and initiation of cell proliferation, and reflect metabolic events during cell division, cell elongation and starvation. The main components of the nucleotide pool are uracil nucleotides, with uridine 5′-diphosphate sugars as the predominant fraction, and the adenine nucleotides. Although their concentrations vary by a factor of more than 6 the ratio of the uracil to adenine nucleotides is kept fairly constant during growth. The energy charge is maintained at a rather high value. The correlation of these events with nutrient uptake and macromolecular synthesis by the batch culture is presented in the following paper.
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Abbreviations
- Glc:
-
glucose
- GlcNAc:
-
2-acetamido-2-deoxy-d-glucose
- HPLC:
-
high performance liquid chromatography
- UDP:
-
uridine 5′-diphosphate
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Meyer, R., Wagner, K.G. Nucleotide pools in suspension-cultured cells of Datura innoxia . Planta 166, 439–445 (1985). https://doi.org/10.1007/BF00391267
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DOI: https://doi.org/10.1007/BF00391267