Ascorbate Free Radical Involvement in Elongation-Related Growth Processes in Onion Roots

  • A. Hidalgo
  • P. Navas
Part of the NATO ASI Series book series (NSSA, volume 7)


Ascorbate free radical (AFR) induced a 30% increase in Allium cepa root growth. Since neither cell cycle nor mitotic index were affected, the nature of this growth stimulation may not be related to cell proliferation. In fact, the increase in cell size induced by AFR in both meristematic and elongating cells indicated that AFR action could be involved in the activation of the elongation-component of root growth.


Root Growth Acid Phosphatase Mitotic Index Elongate Cell Growth Stimulation 
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Copyright information

© Springer Science+Business Media New York 1988

Authors and Affiliations

  • A. Hidalgo
    • 1
  • P. Navas
    • 1
  1. 1.Departamento de Biología Celular Facultad de CienciasUniversidad de CórdobaCórdobaSpain

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