| Myrosinases, TGG1 and TGG2, redundantly function in ABA and MeJA signaling in Arabidopsis guard cells. | |
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MedLine Citation:
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PMID: 19433491 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Thioglucoside glucohydrolase (myrosinase), TGG1, is a strikingly abundant protein in Arabidopsis guard cells. We investigated responses of tgg1-3, tgg2-1 and tgg1-3 tgg2-1 mutants to abscisic acid (ABA) and methyl jasmonate (MeJA) to clarify whether two myrosinases, TGG1 and TGG2, function during stomatal closure. ABA, MeJA and H(2)O(2) induced stomatal closure in wild type, tgg1-3 and tgg2-1, but failed to induce stomatal closure in tgg1-3 tgg2-1. All mutants and wild type showed Ca(2+)-induced stomatal closure and ABA-induced reactive oxygen species (ROS)production. A model is discussed in which two myrosinases redundantly function downstream of ROS production and upstream of cytosolic Ca(2+) elevation in ABA and MeJA signaling in guard cells. |
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Authors:
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Mohammad Mahbub Islam; Chiharu Tani; Megumi Watanabe-Sugimoto; Misugi Uraji; Md Sarwar Jahan; Choji Masuda; Yoshimasa Nakamura; Izumi C Mori; Yoshiyuki Murata |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2009-05-11 |
Journal Detail:
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Title: Plant & cell physiology Volume: 50 ISSN: 1471-9053 ISO Abbreviation: Plant Cell Physiol. Publication Date: 2009 Jun |
Date Detail:
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Created Date: 2009-06-11 Completed Date: 2009-06-30 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9430925 Medline TA: Plant Cell Physiol Country: Japan |
Other Details:
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Languages: eng Pagination: 1171-5 Citation Subset: IM |
Affiliation:
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Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Okayama, Japan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Abscisic Acid
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metabolism* Acetic Acids / metabolism* Arabidopsis / enzymology, genetics* Arabidopsis Proteins / genetics, metabolism* Calcium / metabolism Cyclopentanes / metabolism* Glycoside Hydrolases / genetics, metabolism* Hydrogen Peroxide / metabolism Mutation Oxylipins / metabolism* Plant Growth Regulators / metabolism Plant Stomata / physiology Signal Transduction |
| Chemical | |
Reg. No./Substance:
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0/Acetic Acids; 0/Arabidopsis Proteins; 0/Cyclopentanes; 0/Oxylipins; 0/Plant Growth Regulators; 1211-29-6/methyl jasmonate; 21293-29-8/Abscisic Acid; 7440-70-2/Calcium; 7722-84-1/Hydrogen Peroxide; EC 3.2.1.-/Glycoside Hydrolases; EC 3.2.1.147/TGG1 protein, Arabidopsis; EC 3.2.1.147/TGG2 protein, Arabidopsis |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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