title: Inhibition by acrolein of light-induced stomatal opening through inhibition of inward-rectifying potassium channels in Arabidopsis thaliana.
abstract: Acrolein is a reactive α,β-unsaturated aldehyde derived from lipid peroxides, which are produced in plants under a variety of stress. We investigated effects of acrolein on light-induced stomatal opening using Arabidopsis thaliana. Acrolein inhibited light-induced stomatal opening in a dose-dependent manner. Acrolein at 100 μM inhibited plasma membrane inward-rectifying potassium (Kin) channels in guard cells. Acrolein at 100 μM inhibited Kin channel KAT1 expressed in a heterologous system using Xenopus leaves oocytes. These results suggest that acrolein inhibits light-induced stomatal opening through inhibition of Kin channels in guard cells.
authors.affiliation: a Graduate School of Natural Science and Technology , Okayama University , Okayama , Japan.
authors.forename: Md Moshiul
authors.initials: MM
authors.lastname: Islam
authors.forename: Wenxiu
authors.initials: W
authors.lastname: Ye
authors.forename: Daiki
authors.initials: D
authors.lastname: Matsushima
authors.forename: Md Atiqur Rahman
authors.initials: MA
authors.lastname: Khokon
authors.forename: Shintaro
authors.initials: S
authors.lastname: Munemasa
authors.forename: Yoshimasa
authors.initials: Y
authors.lastname: Nakamura
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Murata
mesh_terms: D000171:Acrolein / Q000378:metabolism / Q000494:pharmacology*; D000818:Animals; D017360:Arabidopsis / Q000187:drug effects* / Q000378:metabolism / Q000528:radiation effects; D029681:Arabidopsis Proteins / Q000037:antagonists & inhibitors* / Q000235:genetics / Q000378:metabolism; D004305:Dose-Response Relationship, Drug; D015870:Gene Expression; D007700:Kinetics; D008027:Light; D008564:Membrane Potentials / Q000187:drug effects; D009865:Oocytes / Q000166:cytology / Q000187:drug effects / Q000378:metabolism; D018408:Patch-Clamp Techniques; D059828:Plant Cells / Q000187:drug effects* / Q000378:metabolism / Q000528:radiation effects; D054046:Plant Stomata / Q000187:drug effects* / Q000378:metabolism / Q000528:radiation effects; D011188:Potassium / Q000378:metabolism*; D024661:Potassium Channels, Inwardly Rectifying / Q000037:antagonists & inhibitors* / Q000235:genetics / Q000378:metabolism; D011994:Recombinant Proteins / Q000235:genetics / Q000378:metabolism; D014982:Xenopus laevis
chemical_list: D029681:Arabidopsis Proteins; C501210:KAT1 protein, Arabidopsis; D024661:Potassium Channels, Inwardly Rectifying; D011994:Recombinant Proteins; D000171:Acrolein; D011188:Potassium
keywords: Arabidopsis thaliana; acrolein; guard cell; inward-rectifying potassium channel; light-induced stomatal opening