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Rooting hastened in onions by ascorbate and ascorbate free radical

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Treatment of onion bulbs with ascorbate or its free radical hastened root emergence on the basal plate in relation to treatments with water or dehydroascorbate. This stimulation was accompanied by a significant increase of DNA synthesis per primordium. After a 24-h imbibition, ascorbate and ascorbate free radical also increased cell length. Ascorbate and ascorbate free radical apparently activated the onset of cell proliferation in root primordia, resulting in a shortening in G1-S transition. The possible action of the ascorbate system at the plasma membrane level is discussed.

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ascorbic acid


ascorbate free radical




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de Cabo, R.C., González-Reyes, J.A., Córdoba, F. et al. Rooting hastened in onions by ascorbate and ascorbate free radical. J Plant Growth Regul 15, 53 (1996). https://doi.org/10.1007/BF00192931

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Key Words

  • Ascorbate
  • Ascorbate free radical
  • Root elongation