Water oxidation by photosystem II is the primary source of electrons for sustained H 2 photoproduction in nutrient-replete green algae

• Published in: Proceedings of the National Academy of Sciences - PNAS Vol. 117; no. 47; pp. 29629 - 29636
• Main Authors: Kosourov, Sergey, Nagy, Valéria, Shevela, Dmitry, Jokel, Martina, Messinger, Johannes, Allahverdiyeva, Yagut
• Format: Journal Article
• Language: English
• Published: United States 24.11.2020
• Subjects: carbon dioxide; Chlamydomonas reinhardtii - metabolism; Chlorophyll - metabolism; Chlorophyta - metabolism; Electron Transport - physiology; Electrons; green algae; Hydrogen - metabolism; hydrogen production; hydrogenase; Hydrogenase - metabolism; Nutrients - metabolism; Oxygen - metabolism; Photosynthesis - physiology; Photosystem I Protein Complex - metabolism; Photosystem II Protein Complex - metabolism; splitting; Sulfur - metabolism; Water - metabolism; carbon dioxide; hydrogenase; green algae; water splitting; hydrogen production

Photosynthetic H 2 production in the green alga Chlamydomonas reinhardtii is catalyzed by O 2 -sensitive [FeFe]-hydrogenases, which accept electrons from photosynthetically reduced ferredoxin and reduce protons to H 2 . Since the process occurs downstream of photosystem I, the contribution of photos...