Oxidative stress, antioxidants and stress tolerance.

@article{Mittler2002OxidativeSA,
  title={Oxidative stress, antioxidants and stress tolerance.},
  author={Ron Mittler},
  journal={Trends in plant science},
  year={2002},
  volume={7 9},
  pages={
          405-10
        }
}
  • R. Mittler
  • Published 1 September 2002
  • Biology
  • Trends in plant science

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References

SHOWING 1-10 OF 54 REFERENCES
ASCORBATE AND GLUTATHIONE: Keeping Active Oxygen Under Control.
  • G. Noctor, C. Foyer
  • Biology
    Annual review of plant physiology and plant molecular biology
  • 1998
TLDR
A detailed account of current knowledge of the biosynthesis, compartmentation, and transport of these two important antioxidants, with emphasis on the unique insights and advances gained by molecular exploration are provided.
Stress induces peroxisome biogenesis genes
TLDR
A model in which various stress situations that lead to the production of hydrogen peroxide can be ameliorated by elaboration of the peroxisome compartment to assist in restoration of the cellular redox balance is proposed.
Regulation of the Arabidopsis transcriptome by oxidative stress.
TLDR
A large-scale analysis of the Arabidopsis transcriptome during oxidative stress identified 175 non-redundant expressed sequence tags that are regulated by H(2)O(2), and a substantial proportion have predicted functions in cell rescue and defense processes.
Transgenic tobacco plants with reduced capability to detoxify reactive oxygen intermediates are hyperresponsive to pathogen infection.
  • R. Mittler, E. Herr, B. Ellis
  • Biology
    Proceedings of the National Academy of Sciences of the United States of America
  • 1999
TLDR
The hypothesis that suppression of ROI-scavenging enzymes during the hypersensitive response plays an important role in enhancing pathogen-induced PCD is supported.
Dual action of the active oxygen species during plant stress responses
TLDR
This review discusses the dual action of AOS during plant stress responses, which was first described in pathogenesis but has also recently been demonstrated during several abiotic stress responses.
Dissection of Oxidative Stress Tolerance Using Transgenic Plants
  • R. Allen
  • Environmental Science
    Plant physiology
  • 1995
TLDR
The role of ROIs in plant stress damage is indicated by the increased production ofROIs and the increased oxidative damage in tissues during stress, and the proposed ROI scavenging pathway of chloroplasts is shown.
Manganese superoxide dismutase can reduce cellular damage mediated by oxygen radicals in transgenic plants.
TLDR
It was found that high level overproduction of MnSOD in the corresponding subcellular location could significantly reduce the amount of cellular damage which would normally occur and a generally applicable model correlating the consequences of SOD with the magnitude of its expression is presented.
A novel aldose/aldehyde reductase protects transgenic plants against lipid peroxidation under chemical and drought stresses.
TLDR
A stress-activated alfalfa gene encoding a novel plant NADPH-dependent aldose/aldehyde reductase that also exhibited characteristics of the homologous human enzyme is identified, revealing a new and efficient detoxification pathway in plants.
Signal interactions between nitric oxide and reactive oxygen intermediates in the plant hypersensitive disease resistance response
TLDR
It is shown that in soybean cells unregulated NO production at the onset of a pathogen-induced hypersensitive response (HR) is not sufficient to activate hypersensitive cell death, and the HR is triggered only by balanced production of NO and ROIs.
...
...