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Kanie, Matuso (Kagoshima University, Kagoshima, Japan),Shigeo Fujimoto, and J. W. Foster . Chemical degradation of dipicolinic acid-C 14 and its application to biosynthesis byPenicillium citreo-viride . J. Bacteriol.91: 570–577. 1966.—A chemical degradation of dipicolinic acid-C 14 has been worked out, enabling determination of the specific radioactivity of the carboxyl-carbons (carbons-7 and -8), and of the following carbons of the pyridine ring: carbons-2 and -6 combined, carbons-3 and -5 combined, and carbon-4. The degradation was applied to dipicolinic acid synthesized by washed, submerged mycelium of the mold from glucose and C14 O2 , and from glucose-1-C 14 , -2-C 14 , and -6-C 14 . The distribution of radioactivity within the labeled dipicolinic acids is consistent with operation of respiratory cycles and with the incorporation of one molecule of CO2 in the pyridine acid. A C3 compound is a primary building block. The C7 chain is believed to result from a C3 plus C4 condensation, pyruvic acid and aspartic acid β-semialdehyde being proposed as likely precursors. Other aspects of the biosynthesis of C7 open-chain compounds and of dipicolinic acid are discussed.

Chemical Degradation of Dipicolinic Acid- C 14 and Its Application in Biosynthesis by Penicillium citreo-viride

Chemical Degradation of Dipicolinic Acid- C ¹⁴ and Its Application in Biosynthesis by Penicillium citreo-viride