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Catalase function in plants: a focus on Arabidopsis mutants as stress-mimic models

(2010) JOURNAL OF EXPERIMENTAL BOTANY. 61(15). p.4197-4220
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Abstract
Hydrogen peroxide (H2O2) is an important signal molecule involved in plant development and environmental responses. Changes in H2O2 availability can result from increased production or decreased metabolism. While plants contain several types of H2O2-metabolizing proteins, catalases are highly active enzymes that do not require cellular reductants as they primarily catalyse a dismutase reaction. This review provides an update on plant catalase genes, function, and subcellular localization, with a focus on recent information generated from studies on Arabidopsis. Original data are presented on Arabidopsis catalase single and double mutants, and the use of some of these lines as model systems to investigate the outcome of increases in intracellular H2O2 are discussed. Particular attention is paid to interactions with cell thiol-disulphide status; the use of catalase-deficient plants to probe the apparent redundancy of reductive H2O2-metabolizing pathways; the importance of irradiance and growth daylength in determining the outcomes of catalase deficiency; and the induction of pathogenesis-related responses in catalase-deficient lines. Within the context of strategies aimed at understanding and engineering plant stress responses, the review also considers whether changes in catalase activities in wild-type plants are likely to be a significant part of plant responses to changes in environmental conditions or biotic challenge.
Keywords
HYDROGEN-PEROXIDE, OXIDATIVE STRESS, REACTIVE OXYGEN, INDUCED GENE-EXPRESSION, PEROXISOMAL TARGETING SIGNAL, WRKY53 TRANSCRIPTION FACTOR, GLUTATHIONE-REDUCTASE ACTIVITY, HORDEUM-VULGARE-L, PROGRAMMED CELL-DEATH, TRANSGENIC TOBACCO PLANTS, redox signalling, pathogens, oxidative stress, mutants, glutathione, Arabidopsis thaliana, H2O2

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Chicago
Mhamdi, Amna, Guillaume Queval, Sejir Chaouch, Sandy Vanderauwera, Frank Van Breusegem, and Graham Noctor. 2010. “Catalase Function in Plants: a Focus on Arabidopsis Mutants as Stress-mimic Models.” Journal of Experimental Botany 61 (15): 4197–4220.
APA
Mhamdi, A., Queval, G., Chaouch, S., Vanderauwera, S., Van Breusegem, F., & Noctor, G. (2010). Catalase function in plants: a focus on Arabidopsis mutants as stress-mimic models. JOURNAL OF EXPERIMENTAL BOTANY, 61(15), 4197–4220.
Vancouver
1.
Mhamdi A, Queval G, Chaouch S, Vanderauwera S, Van Breusegem F, Noctor G. Catalase function in plants: a focus on Arabidopsis mutants as stress-mimic models. JOURNAL OF EXPERIMENTAL BOTANY. 2010;61(15):4197–220.
MLA
Mhamdi, Amna, Guillaume Queval, Sejir Chaouch, et al. “Catalase Function in Plants: a Focus on Arabidopsis Mutants as Stress-mimic Models.” JOURNAL OF EXPERIMENTAL BOTANY 61.15 (2010): 4197–4220. Print.
@article{1070937,
  abstract     = {Hydrogen peroxide (H2O2) is an important signal molecule involved in plant development and environmental responses. Changes in H2O2 availability can result from increased production or decreased metabolism. While plants contain several types of H2O2-metabolizing proteins, catalases are highly active enzymes that do not require cellular reductants as they primarily catalyse a dismutase reaction. This review provides an update on plant catalase genes, function, and subcellular localization, with a focus on recent information generated from studies on Arabidopsis. Original data are presented on Arabidopsis catalase single and double mutants, and the use of some of these lines as model systems to investigate the outcome of increases in intracellular H2O2 are discussed. Particular attention is paid to interactions with cell thiol-disulphide status; the use of catalase-deficient plants to probe the apparent redundancy of reductive H2O2-metabolizing pathways; the importance of irradiance and growth daylength in determining the outcomes of catalase deficiency; and the induction of pathogenesis-related responses in catalase-deficient lines. Within the context of strategies aimed at understanding and engineering plant stress responses, the review also considers whether changes in catalase activities in wild-type plants are likely to be a significant part of plant responses to changes in environmental conditions or biotic challenge.},
  author       = {Mhamdi, Amna and Queval, Guillaume and Chaouch, Sejir and Vanderauwera, Sandy and Van Breusegem, Frank and Noctor, Graham},
  issn         = {0022-0957},
  journal      = {JOURNAL OF EXPERIMENTAL BOTANY},
  keyword      = {HYDROGEN-PEROXIDE,OXIDATIVE STRESS,REACTIVE OXYGEN,INDUCED GENE-EXPRESSION,PEROXISOMAL TARGETING SIGNAL,WRKY53 TRANSCRIPTION FACTOR,GLUTATHIONE-REDUCTASE ACTIVITY,HORDEUM-VULGARE-L,PROGRAMMED CELL-DEATH,TRANSGENIC TOBACCO PLANTS,redox signalling,pathogens,oxidative stress,mutants,glutathione,Arabidopsis thaliana,H2O2},
  language     = {eng},
  number       = {15},
  pages        = {4197--4220},
  title        = {Catalase function in plants: a focus on Arabidopsis mutants as stress-mimic models},
  url          = {http://dx.doi.org/10.1093/jxb/erq282},
  volume       = {61},
  year         = {2010},
}

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