Plants subjected to unfavorable environmental conditions (abiotic stress) and which are under stress have manifested consequences by disturbances morpho physiological. The work that we have performed concerns the effects of water stress on plant model: durum wheat (Triticum durum) variety GTA. After germination, the plants were subjected to water stress during (03, 05, 07 and 09 days). Our results showed clearly a decrease in the average content in chlorophyll and disruption of respiratory metabolism. At the cellular level, this stress has led to changes in cellular homeostasis and toxicity, which are manifested by the production of reactive forms of oxygen, superoxide anion at the roots of our plant model.
