Chitosan-induced stomatal closure accompanied by peroxidase-mediated reactive oxygen species production in Arabidopsis.
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.
Graduate School of Natural Science and Technology, Division of Bioscience, Okayama University, Japan.
Md Atiqur Rahman
MA
Khokon
Misugi
M
Uraji
Shintaro
S
Munemasa
Eiji
E
Okuma
Yoshimasa
Y
Nakamura
Izumi C
IC
Mori
Yoshiyuki
Y
Murata
D017360:Arabidopsis / Q000378:metabolism*; D002374:Catalase; D048271:Chitosan / Q000494:pharmacology*; D055786:Gene Knockout Techniques; D019255:NADPH Oxidases / Q000235:genetics; D009195:Peroxidase / Q000378:metabolism*; D054046:Plant Stomata / Q000187:drug effects* / Q000378:metabolism; D017382:Reactive Oxygen Species / Q000494:pharmacology*
D017382:Reactive Oxygen Species; D048271:Chitosan; D002374:Catalase; D009195:Peroxidase; D019255:NADPH Oxidases