The Response Mechanism of Active Oxygen Species Removing System to Drought Stress

Drought stress is a bottleneck factor for plant growth and development. Water stress induce the increased generation of active oxygen species, which cause oxidative stress to plant cells. some are highly toxic and rapidly detoxified throughvarious cellular enzymatic and nonenzymatic mechanisms,however, the changes of active oxygen species generation resulted in the significant enhancement in the activities of antioxidant enzymes. The generation of Active oxygen species is involved in the accumulation of ABA, proline and chlorophyll fluorescence exterminating process. Therefore, it is necessary to understand the response mechanism of active oxygen removing system to drought stress and that of function in some physiological and biochemical process.