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

Proc Natl Acad Sci U S A · 2020 · PMC7703569 · PMID 33168746

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might be significantno p-value reported

It has previously been shown that contribution of the indirect pathway to the H 2 photoproduction yield might be significant in S-deprived cells, where the PSII activity is substantially affected by the stress ( 48 ).

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