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

Nasima AKTER; Muhammad Abdus SOBAHAN; Mohammad Anowar HOSSAIN; Misugi URAJI; Yoshimasa NAKAMURA; Izumi C. MORI; Yoshiyuki MURATA

doi:10.1271/bbb.100513

Biochemistry & Molecular Biology Notes

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

Nasima AKTER, Muhammad Abdus SOBAHAN, Mohammad Anowar HOSSAIN, Misugi URAJI, Yoshimasa NAKAMURA, Izumi C. MORI, Yoshiyuki MURATA

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Keywords: cytosolic Ca²⁺, glutathione, guard cell, methyl jasmonate, reactive oxygen species

JOURNAL FREE ACCESS

2010 Volume 74 Issue 12 Pages 2504-2506

DOI https://doi.org/10.1271/bbb.100513

View "Advance Publication" version (December 7, 2010).

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Abstract

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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