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Chitosan-induced stomatal closure accompanied by peroxidase-mediated reactive oxygen species production in
Md Atiqur Rahman Khokon1, Misugi Uraji, Shintaro Munemasa
1Graduate School of Natural Science and Technology, Division of Bioscience, Okayama University, Japan.
Abstract:
Chitosan induced stomatal closure in wild type-plants and NADPH oxidase knock-out mutants (atrbohD atrbohF), and reactive oxygen species (ROS) production in wild-type guard cells. Closure and production were completely abolished by catalase and a peroxidase inhibitor. These results indicate that chitosan induces ROS production mediated by peroxidase, resulting in stomatal closure.
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