MICROBIAL AND BIOCHEMICAL-CHARACTERIZATION OF A BACTERIAL CONSORTIUM ISOLATED FROM DECAYING WOOD BY GROWTH ON A BETA-O-4 LIGNIN-RELATED DIMERIC COMPOUND

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dc.contributor.authorCESPEDES, R
dc.contributor.authorSALAS, L
dc.contributor.authorCALDERON, I
dc.contributor.authorGONZALES, B
dc.contributor.authorVICUNA, R
dc.date.accessioned2025-01-23T19:22:04Z
dc.date.available2025-01-23T19:22:04Z
dc.date.issued1992
dc.description.abstractAs an approach to evaluate the contribution of bacteria to lignin degradation in wood, we have chosen to study these microorganisms in the natural wood decay ecosystem known as Palo Podrido. Initially, the characterization of bacteria able to metabolize lignin-related compounds present in samples of Palo Podrido was undertaken. For their isolation, minimal salt media containing lignin dimers of either the arylglycerol-beta-aryl ether (beta-O-4) or 1,2-diarylpropane (beta-1) types as the only source of carbon and energy were inoculated with various wood samples exhibiting different degrees of decay. The beta-1 dimers used failed to support bacterial growth. However, three bacterial consortia able to consume quantitatively the beta-O-4 model 1-[3,4-dimethoxyphenyl]-2-[2-methoxyphenoxy]-3-hydroxypropanone (compound I) were isolated. One of these was further characterized. It is composed of eight strains belonging to the families of Streptomycetaceae, Dermatophilaceae and Actinoplanaceae. HPLC and GC-MS analyses revealed that the consortium utilizes two pathways to degrade beta-O-4 dimers, both involving direct cleavage of the ether linkage. The formation of a novel C6-C3 degradation intermediate is described. Some metabolic properties of each strain, as well as those of the intact consortium, are also reported.
dc.fuente.origenWOS
dc.identifier.issn0302-8933
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/98950
dc.identifier.wosidWOS:A1992JN09800002
dc.issue.numero3
dc.language.isoen
dc.pagina.final170
dc.pagina.inicio162
dc.revistaArchives of microbiology
dc.rightsacceso restringido
dc.subject.ods06 Clean Water and Sanitation
dc.subject.odspa06 Agua limpia y saneamiento
dc.titleMICROBIAL AND BIOCHEMICAL-CHARACTERIZATION OF A BACTERIAL CONSORTIUM ISOLATED FROM DECAYING WOOD BY GROWTH ON A BETA-O-4 LIGNIN-RELATED DIMERIC COMPOUND
dc.typeartículo
dc.volumen158
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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