Khenokh M A, Nikolaeva M V
Zh Evol Biokhim Fiziol. 1977 Mar-Apr;13(2):105-10.
Ultraviolet light (PRK-2) induces the formation of various amino acids (lysine, asparaginic, as well as traces of some other acids) in mannose, glucose and arabinose solutions containing various nitrates. K+, Co2+, Ni2+ and Fe3+ significantly sensitize the formation of amino acids. In the atmosphere of N2, synthesis of appreciable amounts of glutamic acid takes place, wherease in the atmosphere of O2 or CO2 the latter is produced only in traces. Photolysis of glucose and mannose in nitrate-free solutions in the atmosphere of N2 results in the formation of lysine and glutamic acid. The data obtained show that in pre-biologic conditions in the hydrosphere of Earth (possibly, of other planets as well), abiogenically formed organic substances, e. g. carbohydrates, unter the influence of UV irradiation could be transformed into amino acids. Nitrates present in the water milieu could serve as a source of nitrogen in the amino acids synthesis.
紫外线（PRK - 2）能在含有各种硝酸盐的甘露糖、葡萄糖和阿拉伯糖溶液中诱导形成多种氨基酸（赖氨酸、天冬氨酸以及其他一些酸的痕量）。钾离子、钴离子、镍离子和铁离子能显著促进氨基酸的形成。在氮气氛围下会合成相当数量的谷氨酸，而在氧气或二氧化碳氛围中，谷氨酸仅以痕量产生。在氮气氛围中，无硝酸盐溶液里葡萄糖和甘露糖的光解会导致赖氨酸和谷氨酸的形成。所获数据表明，在地球水圈（可能其他行星的水圈也是如此）的前生物条件下，非生物合成的有机物质，如碳水化合物，在紫外线辐射的影响下可转化为氨基酸。水环境中存在的硝酸盐可作为氨基酸合成中的氮源。
