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Article: New biological chemistry study findings recently were reported by researchers at University of California.
- Article from:
- Chemicals & Chemistry
- Article date:
- October 17, 2008
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"Ascorbic acid (Asc) is a major antioxidant involved in photo-protection and photosynthetic function in plants. Dehydroascorbate reductase (DHAR) catalyzes the regeneration of Asc from its oxidized state and serves as an important regulator of Asc recycling," scientists in the United States report.
"In this work, we used a molecular biochemical approach to investigate how the efficiency of Asc recycling affects non-photochemical quenching (NPQ). Suppression of DHAR expression resulted in a lower induction of NPQ that correlated with reductions in chlorophyll and xanthophyll pigments, quantum yield of photosystem II, and CO2 assimilation, whereas the level of ...