过氧化氢酶2在拟南芥保卫细胞脱落酸信号传导中的作用。
The roles of CATALASE2 in abscisic acid signaling in Arabidopsis guard cells.
作者信息
Jannat Rayhanur, Uraji Misugi, Morofuji Miho, Hossain Mohammad Anowar, Islam Mohammad Muzahidul, Nakamura Yoshimasa, Mori Izumi C, Murata Yoshiyuki
机构信息
Division of Bioscience, Graduate School of Natural Science and Technology, Okayama University, Okayama, Japan.
出版信息
Biosci Biotechnol Biochem. 2011;75(10):2034-6. doi: 10.1271/bbb.110344. Epub 2011 Oct 7.
We investigated the roles of catalase (CAT) in abscisic acid (ABA)-induced stomatal closure using a cat2 mutant and an inhibitor of CAT, 3-aminotriazole (AT). Constitutive reactive oxygen species (ROS) accumulation due to the CAT2 mutation and AT treatment did not affect stomatal aperture in the absence of ABA, whereas ABA-induced stomatal closure, ROS production, and Ca(2+) oscillation were enhanced.
我们使用cat2突变体和过氧化氢酶（CAT）抑制剂3-氨基三唑（AT），研究了过氧化氢酶（CAT）在脱落酸（ABA）诱导的气孔关闭中的作用。在没有ABA的情况下，由于CAT2突变和AT处理导致的活性氧（ROS）组成型积累并不影响气孔孔径，而ABA诱导的气孔关闭、ROS产生和Ca(2+)振荡则增强。
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