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231224s2012 xx |||||o 00| ||eng c |
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|a 10.1016/j.jplph.2012.03.006
|2 doi
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|a pubmed24n0724.xml
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|a (DE-627)NLM21721746X
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|a (NLM)22525681
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|a DE-627
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|e rakwb
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|a eng
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|a Jannat, Rayhanur
|e verfasserin
|4 aut
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|a Catalases negatively regulate methyl jasmonate signaling in guard cells
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|c 2012
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|a Text
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|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 06.11.2012
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2012 Elsevier GmbH. All rights reserved.
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|a Methyl jasmonate (MeJA)-induced stomatal closure is accompanied by the accumulation of hydrogen peroxide (H₂O₂) in guard cells. In this study, we investigated the roles of catalases (CATs) in MeJA-induced stomatal closure using cat mutants cat2, cat3-1 and cat1 cat3, and the CAT inhibitor, 3-aminotriazole (AT). When assessed with 2',7'-dichlorodihydrofluorescein, the reduction of catalase activity by means of mutations and the inhibitor accumulated higher basal levels of H₂O₂ in guard cells whereas they did not affect stomatal aperture in the absence of MeJA. In contrast, the cat mutations and the treatment with AT potentiated MeJA-induced stomatal closure and MeJA-induced H₂O₂ production. These results indicate that CATs negatively regulate H₂O₂ accumulation in guard cells and suggest that inducible H₂O₂ production rather than constitutive elevation modulates stomatal apertures in Arabidopsis
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Acetates
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|a Arabidopsis Proteins
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|a Cyclopentanes
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|a Enzyme Inhibitors
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|a Oxylipins
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|a Reactive Oxygen Species
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|a methyl jasmonate
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|a Catalase
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|a Uraji, Misugi
|e verfasserin
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|a Hossain, Mohammad Anowar
|e verfasserin
|4 aut
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|a Islam, Mohammad Muzahidul
|e verfasserin
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|a Nakamura, Yoshimasa
|e verfasserin
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|a Mori, Izumi C
|e verfasserin
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|a Murata, Yoshiyuki
|e verfasserin
|4 aut
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 169(2012), 10 vom: 01. Juli, Seite 1012-6
|w (DE-627)NLM098174622
|x 1618-1328
|7 nnns
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|g volume:169
|g year:2012
|g number:10
|g day:01
|g month:07
|g pages:1012-6
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|u http://dx.doi.org/10.1016/j.jplph.2012.03.006
|3 Volltext
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