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. 1978 Sep;62(3):430–433. doi: 10.1104/pp.62.3.430

Polyamine Metabolism in Embryogenic Cells of Daucus carota

I. Changes in Intracellular Content and Rates of Synthesis

Michael J Montague 1, Joan W Koppenbrink 1, Ernest G Jaworski 1
PMCID: PMC1092140  PMID: 16660531

Abstract

Changes in the metabolism of polyamines, which seem to be involved in transcription and translation in animal systems, have been studied in cultured cells of Daucus carota (carrot) undergoing embryogenesis. Putrescine levels were elevated by as much as 2-fold over the control within 24 hours after transfer of the cells to embryogenic medium. Spermidine levels were elevated also but spermine levels appeared to be lower in embryogenic cells. Embryogenic cells incorporated [14C]arginine into putrescine at two times the rate of control cells. These changes suggest that polyamines may be involved in cellular differentiation during embryogenesis.

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Selected References

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