« Previous AbstractFungal volatile organic compounds show promise as potent molluscicides    Next AbstractIdentification of cement in atmospheric particulate matter using the hybrid method of laser diffraction analysis and Raman spectroscopy »

Plant Cell Environ

Title:		Allyl isothiocyanate (AITC) induces stomatal closure in Arabidopsis
Author(s):		Khokon MA; Jahan MS; Rahman T; Hossain MA; Muroyama D; Minami I; Munemasa S; Mori IC; Nakamura Y; Murata Y;
Address:		"Graduate School of Natural Science and Technology, Okayama University, 1-1-1 Tsushima-naka, Okayama 700-8530, Japan"
Journal Title:		Plant Cell Environ
Year:		2011
Volume:		20110725
Issue:		11
Page Number:		1900 - 1906
DOI:		10.1111/j.1365-3040.2011.02385.x
ISSN/ISBN:		1365-3040 (Electronic) 0140-7791 (Linking)
Abstract:		"Isothiocyanates (ITCs) are degradation products of glucosinolates in crucifer plants and have repellent effect on insects, pathogens and herbivores. In this study, we report that exogenously applied allyl isothiocyanate (AITC) induced stomatal closure in Arabidopsis via production of reactive oxygen species (ROS) and nitric oxide (NO), and elevation of cytosolic Ca(2+) . AITC-induced stomatal closures were partially inhibited by an inhibitor of NADPH oxidase and completely inhibited by glutathione monoethyl ester (GSHmee). AITC-induced stomatal closure and ROS production were examined in abscisic acid (ABA) deficient mutant aba2-2 and methyl jasmonate (MeJA)-deficient mutant aos to elucidate involvement of endogenous ABA and MeJA. Genetic evidences have demonstrated that AITC-induced stomatal closure required MeJA priming but not ABA priming. These results raise the possibility that crucifer plants produce ITCs to induce stomatal closure, leading to suppression of water loss and invasion of fungi through stomata"
Keywords:		Acetates/pharmacology Arabidopsis/*drug effects/*physiology Calcium/metabolism Cyclopentanes/pharmacology Cytoplasm/drug effects/metabolism Glutathione/pharmacology Isothiocyanates/*pharmacology Movement/drug effects Mutation/genetics Nitric Oxide/metabol;
Notes:		"MedlineKhokon, Md Atiqur Rahman Jahan, Md Sarwar Rahman, Taniya Hossain, Mohammad Anowar Muroyama, Daichi Minami, Ikuko Munemasa, Shintaro Mori, Izumi C Nakamura, Yoshimasa Murata, Yoshiyuki eng 2011/06/30 Plant Cell Environ. 2011 Nov; 34(11):1900-6. doi: 10.1111/j.1365-3040.2011.02385.x. Epub 2011 Jul 25"