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231224s2011 xx |||||o 00| ||eng c |
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|a 10.1016/j.jplph.2011.06.002
|2 doi
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|a pubmed24n0700.xml
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|a (NLM)21764168
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|a DE-627
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|e rakwb
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|a eng
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|a Okuma, Eiji
|e verfasserin
|4 aut
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|a Negative regulation of abscisic acid-induced stomatal closure by glutathione in Arabidopsis
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|c 2011
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 03.03.2014
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|a Date Revised 09.12.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2011 Elsevier GmbH. All rights reserved.
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|a We found that glutathione (GSH) is involved in abscisic acid (ABA)-induced stomatal closure. Regulation of ABA signaling by GSH in guard cells was investigated using an Arabidopsis mutant, cad2-1, that is deficient in the first GSH biosynthesis enzyme, γ-glutamylcysteine synthetase, and a GSH-decreasing chemical, 1-chloro-2,4-dinitrobenzene (CDNB). Glutathione contents in guard cells decreased along with ABA-induced stomatal closure. Decreasing GSH by both the cad2-1 mutation and CDNB treatment enhanced ABA-induced stomatal closure. Glutathione monoethyl ester (GSHmee) restored the GSH level in cad2-1 guard cells and complemented the stomatal phenotype of the mutant. Depletion of GSH did not significantly increase ABA-induced production of reactive oxygen species in guard cells and GSH did not affect either activation of plasma membrane Ca(2+)-permeable channel currents by ABA or oscillation of the cytosolic free Ca(2+) concentration induced by ABA. These results indicate that GSH negatively modulates a signal component other than ROS production and Ca(2+) oscillation in ABA signal pathway of Arabidopsis guard cells
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Dinitrochlorobenzene
|2 NLM
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|a Reactive Oxygen Species
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|a Abscisic Acid
|2 NLM
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|a 72S9A8J5GW
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|a S-ethyl glutathione
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|a 7W95D60F4J
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|a Glutamate-Cysteine Ligase
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|a EC 6.3.2.2
|2 NLM
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|a Glutathione
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|a GAN16C9B8O
|2 NLM
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|a Calcium
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|a SY7Q814VUP
|2 NLM
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|a Jahan, Md Sarwar
|e verfasserin
|4 aut
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|a Munemasa, Shintaro
|e verfasserin
|4 aut
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|a Hossain, Mohammad Anowar
|e verfasserin
|4 aut
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|a Muroyama, Daichi
|e verfasserin
|4 aut
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|a Islam, Mohammad Mahbub
|e verfasserin
|4 aut
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|a Ogawa, Ken'ichi
|e verfasserin
|4 aut
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|a Watanabe-Sugimoto, Megumi
|e verfasserin
|4 aut
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|a Nakamura, Yoshimasa
|e verfasserin
|4 aut
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|a Shimoishi, Yasuaki
|e verfasserin
|4 aut
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|a Mori, Izumi C
|e verfasserin
|4 aut
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|a Murata, Yoshiyuki
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 168(2011), 17 vom: 15. Nov., Seite 2048-55
|w (DE-627)NLM098174622
|x 1618-1328
|7 nnns
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| 773 |
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|g volume:168
|g year:2011
|g number:17
|g day:15
|g month:11
|g pages:2048-55
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|u http://dx.doi.org/10.1016/j.jplph.2011.06.002
|3 Volltext
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|d 168
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