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What is the role of hydrogen peroxide in plant peroxisomes?
Author(s) -
Corpas Francisco J.
Publication year - 2015
Publication title -
plant biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.871
H-Index - 87
eISSN - 1438-8677
pISSN - 1435-8603
DOI - 10.1111/plb.12376
Subject(s) - peroxisome , catalase , hydrogen peroxide , biology , organelle , peroxidase , biochemistry , microbiology and biotechnology , reactive oxygen species , peroxisomal targeting signal , enzyme , nitric oxide , gene , endocrinology
Plant peroxisomes are unusual subcellular compartments with an apparent simple morphology but with complex metabolic activity. The presence of signal molecules, such as hydrogen peroxide (H 2 O 2 ) and nitric oxide inside plant peroxisomes have added new functions in the cross‐talk events among organelles and cells under physiological and stress conditions. Moreover, recent advances in proteomic analyses of plant peroxisomes have identified new protein candidates involved in several novel metabolic pathways. With all these new data, the present concise manuscript will focus on the relevance of the peroxisomal H 2 O 2 and its two main antioxidant enzymes, catalase and membrane‐bound ascorbate peroxidase, which regulate its level and consequently its potential functions.