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Warburg effect (plant physiology)

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Biological phenomenon

In plant physiology, the Warburg effect is the decrease in the rate of photosynthesis due to high oxygen concentrations. 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.

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.


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