The Involvement of Intracellular Glutathione in Methyl Jasmonate Signaling in<i>Arabidopsis</i>Guard Cells

  • AKTER Nasima
    Division of Bioscience, Graduate School of Natural Science and Technology, Okayama University
  • SOBAHAN Muhammad Abdus
    Division of Bioscience, Graduate School of Natural Science and Technology, Okayama University
  • HOSSAIN Mohammad Anowar
    Division of Bioscience, Graduate School of Natural Science and Technology, Okayama University
  • URAJI Misugi
    Division of Bioscience, Graduate School of Natural Science and Technology, Okayama University
  • NAKAMURA Yoshimasa
    Division of Bioscience, Graduate School of Natural Science and Technology, Okayama University
  • MORI Izumi C.
    Institute of Plant Science and Resources (IPSR), Okayama University
  • MURATA Yoshiyuki
    Division of Bioscience, Graduate School of Natural Science and Technology, Okayama University

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  • The Involvement of Intracellular Glutathione in Methyl Jasmonate Signaling in Arabidopsis Guard Cells

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We examined the involvement of intracellular glutathione (GSH) in methyl jasmonate (MeJA) signaling. The chlorina1-1 (ch1-1) mutation decreased GSH in guard cells and narrowed the stomatal aperture. GSH monoethyl ester increased intracellular GSH, diminishing this phenotype. GSH did not affect MeJA-induced reactive oxygen species production or cytosolic Ca2+ oscillation, suggesting that GSH modulates MeJA signaling downstream of production and oscillation.

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