Warburg effect (plant physiology)

In plant physiology, the Warburg effect is the decrease in the rate of photosynthesis due to high oxygen concentrations.[1][2] Oxygen is a competitive inhibitor of carbon dioxide fixation by RuBisCO which initiates photosynthesis. Furthermore, oxygen stimulates photorespiration which reduces photosynthetic output. These two mechanisms working together are responsible for the Warburg effect.[3]

References

1. Turner JS, Brittain EG (February 1962). "Oxygen as a factor in photosynthesis" (PDF). Biological Reviews of the Cambridge Philosophical Society. 37: 130–70. doi:10.1111/j.1469-185X.1962.tb01607.x. PMID 13923215. S2CID 20932011.
2. Zelitch I (1971). "Chapter 8, Section E: Inhibition by O₂ (The Warburg Effect)". Photosynthesis, Photorespiration, and Plant Productivity. New York: Academic Press. pp. 253–255. ISBN 0124316085.
3. Schopfer P, Mohr H (1995). "The leaf as a photosynthetic system". Plant physiology. Berlin: Springer. pp. 236–237. ISBN 3-540-58016-6.