Mehler reaction

The Mehler reaction reduces oxygen O2 to superoxide anion O2- by donation of an electron in Photosystem I.[1] Superoxide anion can then be converted to hydrogen peroxide (H2O2) by superoxide dismutase, and H2O2 can be converted to water by ascorbate peroxidase. As the electrons originally come from water, this set of reactions is known as the photosynthetic water-water cycle. It is not related to photorespiration, as it comprises different reactions and results in no net oxygen consumption.

References

  1. ↑ Irrungen, Wirrungen? The Mehler reaction in relation to cyclic electron transport in C3 plants. Heber, U. PHOTOSYNTHESIS RESEARCH Volume: 73 Issue: 1-3 Pages: 223-231 Published: 2002
This article is issued from Wikipedia - version of the Thursday, March 24, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.