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Source of Oxygen Liberated During Photosynthesis

Abstract

PROF. HUGH NICOL'S note, “Photosynthesis, Philosophy and Priestley”, in Nature of August 10, p. 200, mentions G. Bredig (1914) as the first to suggest that the photosynthetic oxygen comes from water. It may be of interest to know that J. Liebig (Ann. Chem. Pharm., 46, 58; 1843) gave the following picture of the carbon dioxide assimilation of plants:

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STEIGMANN, A. Source of Oxygen Liberated During Photosynthesis. Nature 158, 345 (1946). https://doi.org/10.1038/158345a0

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