Abstract
For the main component of the pigments ofErwinia rubrifaciens, we suggest the hitherto unknown structure of a 3-(3-carboxymethyl-4,5-dihydro-4,5-dioxo-2-pyrrolyl)-4,5,6-trihydroxy-pyridine-2-acetic acid. Its isolation and characterization are described. Inasmuch as arylpyrrolindiones are known to be red, the proposed structure can account for the color of the pigment. The 2,3,4-trihydroxypyridine moiety probably inhibits the electron transport in mitochondria. This could explain the toxic action ofErwinia rubrifaciens onJuglans regia.
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Feistner, G., Korth, H., Budzikiewicz, H. et al. Rubrifacine fromErwinia rubrifaciens . Current Microbiology 10, 169–172 (1984). https://doi.org/10.1007/BF01576780
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DOI: https://doi.org/10.1007/BF01576780