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Journal of Plant Sciences
  Year: 2011 | Volume: 6 | Issue: 1 | Page No.: 1-13
DOI: 10.3923/jps.2011.1.13
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Increased Tolerance to Abiotic Stresses in Tobacco Plants Expressing a Barley Cell Wall Peroxidase

Deborah Vicuna, Renee P. Malone and Philip J. Dix

This study aimed to explore the prospects for enhancing abiotic stress tolerance through expression of a cell wall-targeted peroxidase in transgenic plants. Abiotic stresses result in the production of several Reactive Oxygen Species (ROS), including hydrogen peroxide (H2O2), in higher plants. H2O2 is highly diffusible and has a stress signalling role, but is also the source, through Fenton reactions, of highly destructive hydroxyl free radicals. Type III peroxidases, a family of heme-containing proteins which oxidise a range of substrates using H2O2 as oxidant, are capable of depleting H2O2 levels in several cellular compartments and specific peroxidases have been linked to stress defences. In the present study, we demonstrate expression of a pathogen-induced apoplastic barley peroxidase in transgenic tobacco plants and show that it confers improved tolerance to several abiotic stresses, including high and low temperatures, salinity, metal ion and osmotic stress.
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  •    Expression of a Barley Peroxidase in Transgenic Apple (Malus domestica L.) Results in Altered Growth, Xylem Formation and Tolerance to Heat Stress
  •    Extract from Drought-Stress Leaves Enhances Disease Resistance Through Induction of Pathogenesis Related Proteins and Accumulation of Reactive Molecules
  •    Effect of Salt Treatment on the Expression of Phenolics and Peroxidase Activity Assessed in Two Barley Cultivars Acsad 1230 and Arig 8
  •    Effects of NaCl Stress on Antioxidative Enzymes of Glycine Soja sieb
How to cite this article:

Deborah Vicuna, Renee P. Malone and Philip J. Dix, 2011. Increased Tolerance to Abiotic Stresses in Tobacco Plants Expressing a Barley Cell Wall Peroxidase. Journal of Plant Sciences, 6: 1-13.

DOI: 10.3923/jps.2011.1.13


16 September, 2020
Mona Albloushi:
can I get the full text, I am studying enhancing salt tolerant in plant




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