ABIOTIC PHOTOSYNTHESIS OF SUBSTANCES RELATIVE TO THE ORIGIN OF LIFE FROM AQUEOUS AMMONIUM CARBONATE SOLUTIONS
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概要
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It has been demonstrated that amino acids and nucleic acid bases can be synthesized by UV irradiation even in such rather oxidizing atmosphere as aqueous solutions containing CO2, HCO3- and/or CO32- in the absence of CH4 or H2. For the production of amino acids and nucleic acid bases from ammonium carbonate solution or water to which CO2 and NH3 gases had been dissolved, UV shorter than 250nn, temperature higher than 80°C and the coexistence of Mg2+ were found to be effective. On the basis of some experimental evidences, oxalic acid and/or oxamic acid are assumed to be the possible intermediates for the synthesis.
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