| Research progress on important enzymes of crop photosynthesis and its relations to resisting drought and saving water |
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| DOI：10.7606/j.issn.1000-7601.2008.02.48 |
| Key Words: crop photosynthesis water use efficiency resisting drought and saving water photosynthetic enzyme |
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| Abstract: |
| The water deficit is a major abiotic factor limiting crop photosynthesis and growth．Producing more photosynthetic dry matter with less water is the key to increase crop WUE．Therefore?photosynthetic efficiency could be increased through improving the enzymic genes expression and activity with genetic engineering by investigating the regulating mechanism of the enzymes．This is an important approach to realize the combination of higher photosynthetic efficiency and higher WUE．The present paper reviewed the research progress concerning the relation between crop photosynthesis and resisting drought and saving water under drought stress and the biological structure and function of the key enzymes of crop fixing CO2 and of sucrose and starch metabolite．The purpose is to provide useful information about efficient radiation use and drought resistance and water saving in crops． |