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Mutualistic degradation of the lignin model compound veratrylglycerol-beta-(o-methoxyphenyl) ether by bacteria. 1975

R L Crawford

Complete degradation of the lignin model compound veratrylglycerol-beta-(o-methoxyphenyl) ether is accomplished mutualistically by a two-membered bacterial culture. Bacterial isolate E1, which has been tentatively identified as an Acinetobacter, grows on veratrylglycerol-beta-(o-methoxyphenyl) ether producing guaiacol (o-methoxyphenol) as a non-metabolizable, bacteriocidal by-product. When Nocardia corallina (strain A81) is also present in media containing veratrylglycerol-beta-(o-methoxyphenyl) ether as the only carbon/energy source, it is able to grow on the guaiacol produced from veratrylglycerol-beta-(o-methoxyphenyl) ether by isolate E1. Strain A81 alone does not grow on veratrylglycerol-beta-(o-methoxyphenyl) ether. In the absence of strain A81, isolate E1 is rapidly killed by accumulated guaiacol. In the presence of the Nocardia, isolate E1 maintains its viability.

UI MeSH Term Description Entries
D008031 Lignin The most abundant natural aromatic organic polymer found in all vascular plants. Lignin together with cellulose and hemicellulose are the major cell wall components of the fibers of all wood and grass species. Lignin is composed of coniferyl, p-coumaryl, and sinapyl alcohols in varying ratios in different plant species. (From Merck Index, 11th ed) Lignins
D008956 Models, Chemical Theoretical representations that simulate the behavior or activity of chemical processes or phenomena; includes the use of mathematical equations, computers, and other electronic equipment. Chemical Models,Chemical Model,Model, Chemical
D009615 Nocardia A genus of gram-positive, aerobic bacteria whose species are widely distributed and are abundant in soil. Some strains are pathogenic opportunists for humans and animals. Micropolyspora
D006139 Guaiacol An agent thought to have disinfectant properties and used as an expectorant. (From Martindale, The Extra Pharmacopoeia, 30th ed, p747) 2-Hydroxy-Anisole,2-Hydroxyanisole,2-Methoxy-Phenol,2-Methoxyphenol,Guaicol,Methyl Catechol,Catechol, Methyl
D000150 Acinetobacter A genus of gram-negative bacteria of the family MORAXELLACEAE, found in soil and water and of uncertain pathogenicity. Herellea,Mima
D001673 Biodegradation, Environmental Elimination of ENVIRONMENTAL POLLUTANTS; PESTICIDES and other waste using living organisms, usually involving intervention of environmental or sanitation engineers. Bioremediation,Phytoremediation,Natural Attenuation, Pollution,Environmental Biodegradation,Pollution Natural Attenuation

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