Activation of γ-Aminobutyrate Production by Chloroplastic H2O2 Is Associated with the Oxidative Stress Response

Takanori MARUTA; Megumi OJIRI; Masahiro NOSHI; Masahiro TAMOI; Takahiro ISHIKAWA; Shigeru SHIGEOKA

doi:10.1271/bbb.120825

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Activation of γ-Aminobutyrate Production by Chloroplastic H₂O₂ Is Associated with the Oxidative Stress Response

Takanori MARUTA, Megumi OJIRI, Masahiro NOSHI, Masahiro TAMOI, Takahiro ISHIKAWA, Shigeru SHIGEOKA

著者情報

キーワード: reactive oxygen species, oxidative stress, γ-aminobutyrate, chloroplast, Arabidopsis

ジャーナルフリー早期公開

論文ID: 120825

DOI https://doi.org/10.1271/bbb.120825

この記事には本公開記事があります。

The final version of this article is now available: Vol. 77 (2013) , No. 2 p.422

詳細

抄録

We isolated an Arabidopsis knockout line lacking glutamate decarboxylase 1 (GAD1), one that produced γ-aminobutyrate (GABA), as an oxidative stress-insensitive mutant, and found that chloroplastic H₂O₂ enhances GAD1 expression and GABA levels. This suggests a possible relationship between GABA metabolism and the chloroplastic H₂O₂-mediated stress response.

責任著者(Corresponding author)

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