Variation of antioxidative activity and growth enhancement of Brassicaceae induced by low-pressure oxygen plasma

Reoto Ono, Nobuya Hayashi

    Research output: Contribution to journalArticle

    15 Citations (Scopus)

    Abstract

    The mechanism of growth enhancement induced by active oxygen species generated in an oxygen plasma is investigated. The plant growth enhancement induced by the active oxygen species would relate to an antioxidative activity, which is one of the biological responses. The amount of generated active oxygen species is varied by the oxygen gas pressure in a low-pressure RF glow discharge plasma. The antioxidative activity of sprouts of Brassicaceae induced by the oxygen plasma is maximized at pressures between 30 and 40 Pa, whereas the antioxidative activity becomes small at around 60 and 80 Pa. The pressure dependence of the antioxidative activity of sprout stems is opposite to that of the stem length of the sprouts. The growth enhancement would be induced by the increase in the concentration of active oxygen species in plants owing to the decrease in the amount of antioxidative substances.

    Original languageEnglish
    Article number06GD03
    JournalJapanese Journal of Applied Physics
    Volume54
    Issue number6
    DOIs
    Publication statusPublished - Jun 1 2015

    All Science Journal Classification (ASJC) codes

    • Engineering(all)
    • Physics and Astronomy(all)

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