Was H2O2 generated before oxygenic photosynthesis?
We obviously agree with Wu et al. that H2O2 might accumulate in the Archean land waters devoid of Fe2+. We do disagree on the topic of the half-life of H2O2, as the work cited in support for a longer half-live is not relevant to the conditions in the Archean ocean. While the existence of radicals in...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-05-01
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| Series: | Redox Biology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2213231724000867 |
| _version_ | 1827302700235096064 |
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| author | Willem H. Koppenol Helmut Sies |
| author_facet | Willem H. Koppenol Helmut Sies |
| author_sort | Willem H. Koppenol |
| collection | DOAJ |
| description | We obviously agree with Wu et al. that H2O2 might accumulate in the Archean land waters devoid of Fe2+. We do disagree on the topic of the half-life of H2O2, as the work cited in support for a longer half-live is not relevant to the conditions in the Archean ocean. While the existence of radicals in quartz is not in doubt, we do question the hypothesis that these radicals oxidize water to HO• and H2O2. |
| first_indexed | 2024-04-24T16:49:38Z |
| format | Article |
| id | doaj.art-868c8151733546bb8b135f6fc36a7323 |
| institution | Directory Open Access Journal |
| issn | 2213-2317 |
| language | English |
| last_indexed | 2024-04-24T16:49:38Z |
| publishDate | 2024-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Redox Biology |
| spelling | doaj.art-868c8151733546bb8b135f6fc36a73232024-03-29T05:50:15ZengElsevierRedox Biology2213-23172024-05-0171103110Was H2O2 generated before oxygenic photosynthesis?Willem H. Koppenol0Helmut Sies1Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology, Zürich, Switzerland; Corresponding author. Schwändibergstrasse 25, CH-8784, Braunwald, Switzerland.Institute for Biochemistry and Molecular Biology I, Medical Faculty, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany; Leibniz Research Institute for Environmental Medicine, Düsseldorf, GermanyWe obviously agree with Wu et al. that H2O2 might accumulate in the Archean land waters devoid of Fe2+. We do disagree on the topic of the half-life of H2O2, as the work cited in support for a longer half-live is not relevant to the conditions in the Archean ocean. While the existence of radicals in quartz is not in doubt, we do question the hypothesis that these radicals oxidize water to HO• and H2O2.http://www.sciencedirect.com/science/article/pii/S2213231724000867ArcheanHydrogen peroxideFenton reactionHydroxyl radicalSilicate mineralQuartz |
| spellingShingle | Willem H. Koppenol Helmut Sies Was H2O2 generated before oxygenic photosynthesis? Redox Biology Archean Hydrogen peroxide Fenton reaction Hydroxyl radical Silicate mineral Quartz |
| title | Was H2O2 generated before oxygenic photosynthesis? |
| title_full | Was H2O2 generated before oxygenic photosynthesis? |
| title_fullStr | Was H2O2 generated before oxygenic photosynthesis? |
| title_full_unstemmed | Was H2O2 generated before oxygenic photosynthesis? |
| title_short | Was H2O2 generated before oxygenic photosynthesis? |
| title_sort | was h2o2 generated before oxygenic photosynthesis |
| topic | Archean Hydrogen peroxide Fenton reaction Hydroxyl radical Silicate mineral Quartz |
| url | http://www.sciencedirect.com/science/article/pii/S2213231724000867 |
| work_keys_str_mv | AT willemhkoppenol wash2o2generatedbeforeoxygenicphotosynthesis AT helmutsies wash2o2generatedbeforeoxygenicphotosynthesis |