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Accumulation of antioxidants and antioxidant activity in tomato, <i>Solanum lycopersicum</i>, are enhanced by the transcription factor <i>SlICE1</i>

  • Miura Kenji
    Faculty of Life and Environmental Sciences, University of Tsukuba
  • Sato Ayaka
    Faculty of Life and Environmental Sciences, University of Tsukuba
  • Shiba Hayato
    Faculty of Life and Environmental Sciences, University of Tsukuba
  • Kang Seung Won
    Faculty of Life and Environmental Sciences, University of Tsukuba
  • Kamada Hiroshi
    Faculty of Life and Environmental Sciences, University of Tsukuba
  • Ezura Hiroshi
    Faculty of Life and Environmental Sciences, University of Tsukuba

Bibliographic Information

Other Title
  • Accumulation of antioxidants and antioxidant activity in tomato, Solanum lycopersicum, are enhanced by the transcription factor SlICE1

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Abstract

Antioxidants and antioxidant activity confer important protective effects in plants against the effects of free radicals, which are generated by biotic and abiotic stresses, such as cold. In another study, we identified SlICE1 as a basic helix–loop–helix transcription factor to improve cold tolerance. Here, we demonstrate that SlICE1 plays an important role in the accumulation of antioxidants and in the regulation of antioxidant activity in tomato Solanum lycopersicum. Overexpression of SlICE1 in tomatoes enhanced the accumulation of antioxidants, such as β-carotene, lycopene, and ascorbic acid, as well as antioxidant activity, measured as the scavenging of 2,2-diphenyl-1-picrylhydazyl (DPPH) free radicals and O2 radicals. Furthermore, the sugar content in SlICE1-overexpressing tomatoes red fruits was higher than that in wild-type red fruits. Metabolite profiling analysis performed by capillary electrophoresis time-of-flight mass spectrometry (CE-TOFMS) revealed that several amino acids and amines were more highly accumulated in SlICE1-overexpressing tomato red fruits compared to those in wild-type tomatoes. These results suggest that SlICE1 plays a role in the regulation of antioxidant activity through the accumulation of several antioxidants.

Journal

  • Plant Biotechnology

    Plant Biotechnology 29 (3), 261-269, 2012

    Japanese Society for Plant Biotechnology

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Details

  • CRID
    1390001204326891520
  • NII Article ID
    10030804692
  • NII Book ID
    AA11250821
  • DOI
    10.5511/plantbiotechnology.12.0303b
  • COI
    1:CAS:528:DC%2BC38Xht1ChtbzF
  • ISSN
    13476114
    13424580
  • NDL BIB ID
    023784412
  • Text Lang
    en
  • Data Source
    • JaLC
    • NDL
    • Crossref
    • CiNii Articles
    • KAKEN
  • Abstract License Flag
    Disallowed

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