Glutathione is not involved in light-, dark-, Ca- and H2O2-induced stomatal movement in Arabidopsis
Автор: Sarwar Jahan Md, Bin Che Lah Mohd Khairi, Bin Nordin Mohd Nozulaidi, Syed Kamarulzaman syed S.B.
Журнал: Журнал стресс-физиологии и биохимии @jspb
Статья в выпуске: 3 т.8, 2012 года.
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Glutathione (GSH), is a thiol-containing tripeptide, maintains redox homeostasis in plants under normal and stressful conditions. In this study, we investigated whether GSH involved in light-, dark-, Ca- and H2O2-induced stomatal movement in Arabidopsis. Application of GSH and a GSH decreasing chemical (CDNB; 1-chloro-2,4-dinitrobenzene) did not affect stomatal aperture in guard cells of Arabidopsis. Dark induced stomatal closure and light induced stomatal opening but pre-treatment of GSH and CDNB did not alter dark- and light-induced stomatal aperture. Treatment of guard cells with Ca and H2O2 did not affect GSH contents in guard cells but induced stomatal closure in both wild type and chorinal-1 (ch1-1) mutant plants. In addition, pre-treatment of GSH and CDNB did not affect Ca- and H2O2-induced stomatal closure in both plants. Taken together these results suggest that GSH might not directly affect light-, dark-, Ca- and H2O2-induced stomatal movement in guard cells of Arabidopsis.
Abscisic acid, monochlorobimane, stress
Короткий адрес: https://sciup.org/14323669
IDR: 14323669
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