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Ascorbate and plant cell growth

F Córdoba1, J A González-Reyes

  • 1Departamento de Ciencias Agroforestales, Universidad de Huelva, Spain.

Journal of Bioenergetics and Biomembranes
|August 1, 1994
PubMed
Summary
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Ascorbate (vitamin C) promotes onion root elongation by increasing vacuolization. This plant growth effect is linked to plasma membrane redox activity and energy state modulation.

Area of Science:

  • Plant Physiology
  • Cell Biology
  • Biochemistry

Background:

  • Ascorbate (vitamin C) plays a crucial role in regulating plant growth and development.
  • It influences cell cycle progression, cell wall structure, and plasma membrane redox reactions.

Purpose of the Study:

  • To review the effects of ascorbate on onion root elongation.
  • To elucidate the mechanisms underlying ascorbate-mediated plant growth modulation.

Main Methods:

  • Review of existing scientific literature on ascorbate and plant growth.
  • Analysis of ascorbate's role in cell cycle, cell wall biosynthesis, and plasma membrane redox activity.

Main Results:

  • Ascorbate free radical induces significant vacuolization, driving root elongation.

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  • This process is potentially mediated by plasma membrane redox systems.
  • Ascorbate influences the plasma membrane's energetic state via hyperpolarization.

    • Conclusions:

    • Ascorbate is a key regulator of plant cell elongation, particularly in root growth.
    • The observed effects are linked to ascorbate's redox activity and its influence on plasma membrane function and energy status.