Paper Details

Induction of oxidative stress in wheat (Triticum aestivum L) following infection by the pathogen of task halo (Pyrenophora trirtici-repentis)

Ibtissem Sbartai, Hana Sbartai, Fatima Yaiche, Hind Mokhtari, Houria Berrebbah

DOI: https://dx.doi.org/10.12692/ijb/6.8.77-88

Int. J. Biosci. 6(8), 77-88. April, 2015. (PDF)

Abstract:

Any plant infected by a microorganism can develop a disease. But often, she is able to resist him naturally, thanks to the activation of defense mechanisms. Our main objective is to study the induced defense mechanism in a variety of soft wheat (HD 1222) following infection by the pathogen of halo task Pyrenophora trirtici-repentis. For this, a sample of infested plants was performed according to the severity of contamination (not contaminated, low, medium and high). The results obtained show a fluctuation of chlorophylls rates with a decrease in protein levels as well as a highly significant increase in proline. Finally, the determination of certain biomarkers shown that catalase increases with the degree of infestation, as well as for the rate of malondialdehyde (MDA) leaving suggest a possible lipid peroxidation.