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Appl Environ Microbiol. 1986 December; 52(6): 1428-1432
Copyright © 1986, American Society for Microbiology. All Rights Reserved.

Comparative Growth of Natural Bacterial Isolates on Various Lignin-Related Compounds

Laboratorio de Bioquimica, Departamento de Biologia Celular, Pontificia Universidad Catolica de Chile, Casilla 114-D, Santiago, Chile

ABSTRACT

Bacterial strains were isolated on the basis of their ability to proliferate in a minimal medium containing one of a series of lignin-related compounds as the sole carbon and energy source. These included the aromatic monomers guaiacol, vanillic and coumaric acids, a dimer and a trimer possessing the arylglycerol-ß-aryl ether linkage, anisoin, and both the ether-soluble and -insoluble fractions of kraft lignin. The growth of the strains on each of these compounds was measured. The results showed that the metabolic properties of the strains varied according to the structure of the carbon sources used for their selection. Spectrophotometric tracings of the culture medium during the log phase of growth of one of the strains on the ß-O-4 dimer revealed decomposition with the release of guaiacol.

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