[Effect of elevated CO2 concentration on photosynthesis and antioxidative enzyme activities of wheat plant grown under drought condition].
The photosynthesis and antioxidative enzyme activities of wheat plants grown in two open-top chambers with CO2 concentrations of 350 mumol.mol-1 and 700 mumol.mol-1 were examined under drought stress. The result showed that elevated CO2 concentration obviously enhanced the photosynthesis, stomatal resistance and water use efficiency, but decreased the transpiration of wheat. Doubled CO2 concentration significantly increased the activities of CAT, POD and SOD, which enhanced the abilities of antioxidative defence and drought tolerance.
Chen
X
X
State Key Laboratory of Arid Agroecology, Lanzhou University, Lanzhou 730000.
Wu
D
D
Wang
G
G
Ren
H
H
D002245:Carbon Dioxide / Q000378:metabolism*; D002374:Catalase / Q000378:metabolism; D004190:Disasters; D009195:Peroxidase / Q000378:metabolism; D010788:Photosynthesis / Q000502:physiology*; D013482:Superoxide Dismutase / Q000378:metabolism; D014908:Triticum / Q000201:enzymology / Q000502:physiology*
D002245:Carbon Dioxide; D002374:Catalase; D009195:Peroxidase; D013482:Superoxide Dismutase