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Research Paper | October 1, 2013

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ROS and redox signaling in the response of stems of wheat durum to abiotic stress

Issaad Ghozlène, Djebar Mohammed-Réda, Berrebbah Houria

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Int. J. Biosci.3(10), 298-305, October 2013

DOI: http://dx.doi.org/10.12692/ijb/3.10.298-305


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Cereals hold an important place in agricultural research programs. In Algeria, this place is more important because the country wants to achieve stable production of cereals, especially concerning wheat and barley. However, water availability is a major factor which is limiting the productivity of cereal in Algeria. This work focuses on studying the effects of water deficit on the rods of a model plant: wheat (Triticum durum) variety GTA. After germination, the plants were subjected to a water stress during 03, 05, 07 and 09 days. Our results showed an increase in catalase activity (CAT), ascorbate-peroxidase (APX) (specific Enzymes of cellular detoxification system) and a lesser degree of activity of Guaiacol-peroxidase (GPX). On the other hand, we also showed a stong surge in the rate of hydrogen peroxide (H2O2) in rods. This increase is proportional to the degree of induced stress. The stress has caused toxicity which was manifested by the production of reactive forms of oxygen, hydrogen peroxide and superoxide anion in rods of our plant model.


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ROS and redox signaling in the response of stems of wheat durum to abiotic stress

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