leucophyll

alternative leukophyll

1. uncountablebiochemistryA colourless substance which was hypothesised to be a precursor compound of chlorophyll.

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   Fischer's observations confirmed Lyubimenko's opinion that protochlorophyll represents an oxidised form of chlorophyll arising as a by-product during synthesis. Lyubimenko assumed that the first stage of chlorophyll synthesis is oxidation of the chlorophyll precursor, i.e., the hypothetical leucophyll. [...] The principal stages of initial chlorophyll biosynthesis are the condensation of pyrrole compounds with free alpha-positions, resulting in the formation of a more complex precursor of chlorophyll, i.e., a colorless leuco-compound corresponding to leucophyll. Oxidation of leucophyll leads to the formation of protochlorophyll.

   1963, E. M. Senchenkova, “V. N. Lyubimenko's Studies of Chlorophyll and their Modern Development”, in Israel Program for Scientific Translations, transl., Life Phenomena: A Historical Survey, pages 134–135