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The Apoplastic Oxidative Burst Peroxidase in Arabidopsis Is a Major Component of Pattern-Triggered Immunity
by
Cheng, Zhenyu
, Daudi, Arsalan
, O'Brien, Jose A.
, Mammarella, Nicole
, Ausubel, Frederick M.
, Khan, Satina
, Bolwell, G. Paul
in
Arabidopsis - enzymology
/ Arabidopsis - immunology
/ Arabidopsis - metabolism
/ Arabidopsis - microbiology
/ Arabidopsis Proteins - genetics
/ Arabidopsis Proteins - metabolism
/ Arabidopsis thaliana
/ Cell walls
/ Gene expression
/ Gene Expression Regulation, Plant
/ Genetic aspects
/ Glucans - metabolism
/ Hydrogen
/ Leaves
/ Messenger RNA
/ Oxidases
/ Oxidation-reduction reaction
/ Pathogens
/ Peroxidase
/ Peroxidases - genetics
/ Peroxidases - metabolism
/ Peroxides
/ Phaseolus vulgaris
/ Physiological aspects
/ Plant cells
/ Plant genetics
/ Plant Immunity - genetics
/ Plant Immunity - physiology
/ Plant Leaves - enzymology
/ Plant Leaves - immunology
/ Plant Leaves - metabolism
/ Plant Leaves - microbiology
/ Plants
/ Plants, Genetically Modified - enzymology
/ Plants, Genetically Modified - immunology
/ Plants, Genetically Modified - metabolism
/ Plants, Genetically Modified - microbiology
/ Pseudomonas syringae
/ Pseudomonas syringae - physiology
/ Reactive oxygen species
/ Reactive Oxygen Species - metabolism
2012
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The Apoplastic Oxidative Burst Peroxidase in Arabidopsis Is a Major Component of Pattern-Triggered Immunity
by
Cheng, Zhenyu
, Daudi, Arsalan
, O'Brien, Jose A.
, Mammarella, Nicole
, Ausubel, Frederick M.
, Khan, Satina
, Bolwell, G. Paul
in
Arabidopsis - enzymology
/ Arabidopsis - immunology
/ Arabidopsis - metabolism
/ Arabidopsis - microbiology
/ Arabidopsis Proteins - genetics
/ Arabidopsis Proteins - metabolism
/ Arabidopsis thaliana
/ Cell walls
/ Gene expression
/ Gene Expression Regulation, Plant
/ Genetic aspects
/ Glucans - metabolism
/ Hydrogen
/ Leaves
/ Messenger RNA
/ Oxidases
/ Oxidation-reduction reaction
/ Pathogens
/ Peroxidase
/ Peroxidases - genetics
/ Peroxidases - metabolism
/ Peroxides
/ Phaseolus vulgaris
/ Physiological aspects
/ Plant cells
/ Plant genetics
/ Plant Immunity - genetics
/ Plant Immunity - physiology
/ Plant Leaves - enzymology
/ Plant Leaves - immunology
/ Plant Leaves - metabolism
/ Plant Leaves - microbiology
/ Plants
/ Plants, Genetically Modified - enzymology
/ Plants, Genetically Modified - immunology
/ Plants, Genetically Modified - metabolism
/ Plants, Genetically Modified - microbiology
/ Pseudomonas syringae
/ Pseudomonas syringae - physiology
/ Reactive oxygen species
/ Reactive Oxygen Species - metabolism
2012
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The Apoplastic Oxidative Burst Peroxidase in Arabidopsis Is a Major Component of Pattern-Triggered Immunity
by
Cheng, Zhenyu
, Daudi, Arsalan
, O'Brien, Jose A.
, Mammarella, Nicole
, Ausubel, Frederick M.
, Khan, Satina
, Bolwell, G. Paul
in
Arabidopsis - enzymology
/ Arabidopsis - immunology
/ Arabidopsis - metabolism
/ Arabidopsis - microbiology
/ Arabidopsis Proteins - genetics
/ Arabidopsis Proteins - metabolism
/ Arabidopsis thaliana
/ Cell walls
/ Gene expression
/ Gene Expression Regulation, Plant
/ Genetic aspects
/ Glucans - metabolism
/ Hydrogen
/ Leaves
/ Messenger RNA
/ Oxidases
/ Oxidation-reduction reaction
/ Pathogens
/ Peroxidase
/ Peroxidases - genetics
/ Peroxidases - metabolism
/ Peroxides
/ Phaseolus vulgaris
/ Physiological aspects
/ Plant cells
/ Plant genetics
/ Plant Immunity - genetics
/ Plant Immunity - physiology
/ Plant Leaves - enzymology
/ Plant Leaves - immunology
/ Plant Leaves - metabolism
/ Plant Leaves - microbiology
/ Plants
/ Plants, Genetically Modified - enzymology
/ Plants, Genetically Modified - immunology
/ Plants, Genetically Modified - metabolism
/ Plants, Genetically Modified - microbiology
/ Pseudomonas syringae
/ Pseudomonas syringae - physiology
/ Reactive oxygen species
/ Reactive Oxygen Species - metabolism
2012
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The Apoplastic Oxidative Burst Peroxidase in Arabidopsis Is a Major Component of Pattern-Triggered Immunity
Journal Article
The Apoplastic Oxidative Burst Peroxidase in Arabidopsis Is a Major Component of Pattern-Triggered Immunity
2012
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Overview
In plants, reactive oxygen species (ROS) associated with the response to pathogen attack are generated by NADPH oxidases or apoplastic peroxidases. Antisense expression of a heterologous French bean (Phaseolus vulgaris) peroxidase (FBP1) cDNA in Arabidopsis thaliana was previously shown to diminish the expression of two Arabidopsis peroxidases (peroxidase 33 [PRX33] and PRX34), block the oxidative burst in response to a fungal elicitor, and cause enhanced susceptibility to a broad range of fungal and bacterial pathogens. Here we show that mature leaves of T-DNA insertion lines with diminished expression of PRX33 and PRX34 exhibit reduced ROS and callose deposition in response to microbeassociated molecular patterns (MAMPs), including the synthetic peptides Flg22 and Elf26 corresponding to bacterial flagellili and elongation factor Tu, respectively. PRX33 and PRX34 knockdown lines also exhibited diminished activation of Flg22-activated genes after Flg22 treatment. These MAMP-activated genes were also downregulated in unchallenged leaves of the peroxidase knockdown lines, suggesting that a low level of apoplastic ROS production may be required to preprime basal resistance. Finally, the PRX33 knockdown line is more susceptible to Pseudomonas syringae than wild-type plants. In aggregate, these data demonstrate that the peroxidase-dependent oxidative burst plays an important role in Arabidopsis basal resistance mediated by the recognition of MAMPs.
Publisher
American Society of Plant Biologists
Subject
/ Arabidopsis Proteins - genetics
/ Arabidopsis Proteins - metabolism
/ Gene Expression Regulation, Plant
/ Hydrogen
/ Leaves
/ Oxidases
/ Oxidation-reduction reaction
/ Plants
/ Plants, Genetically Modified - enzymology
/ Plants, Genetically Modified - immunology
/ Plants, Genetically Modified - metabolism
/ Plants, Genetically Modified - microbiology
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