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 Ca(2+) oscillation, suggesting that GSH modulates MeJA signaling downstream of production and oscillation.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Acetates / metabolism*
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Acetates / pharmacology
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Arabidopsis / cytology*
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Arabidopsis / drug effects
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Arabidopsis / genetics
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Arabidopsis / metabolism*
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Cyclopentanes / metabolism*
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Cyclopentanes / pharmacology
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Glutathione / metabolism*
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Intracellular Space / drug effects
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Intracellular Space / metabolism*
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Mutation
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Oxylipins / metabolism*
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Oxylipins / pharmacology
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Plant Stomata / cytology*
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Plant Stomata / drug effects
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Plant Stomata / genetics
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Plant Stomata / metabolism
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Reactive Oxygen Species / metabolism
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Signal Transduction* / drug effects
Substances
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Acetates
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Cyclopentanes
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Oxylipins
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Reactive Oxygen Species
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methyl jasmonate
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Glutathione