Degradation of 4-chlorophenol via the meta cleavage pathway by Comamonas testosteronii JH5

Article Abstract:

The biodegradation of 4-chlorophenol in Comamonas testosteroni strain JH5 was shown to take place through a meta cleavage pathway. The strain utilizes 4-chlorophenol as its only source of carbon and energy. The breakdown of 4-chlorophenol is accompanied by the release of chloride. Two metabolites of the meta cleavage pathway are identified in the system. The enzymes responsible for the meta cleavage pathway are identified.

Chlorophenols

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Growth of syntrophic propionate-oxidizing bacteria with fumarate in the absence of methanogenic bacteria

Article Abstract:

Changes on the propionate oxidation of two different propionate-oxidizing cultures was studied. Methanogenic culture organisms were subjected to carbon-13 nuclear magnetic resonance experiments. Cocultures of sulfidogens and methanogens with Syntrophobacter wolinii were also tested. Results indicate that among syntrophic propionate-oxidizing bacteria, fumarate utilization is uncommon.

Analysis, Usage, Bacteria, Oxidation-reduction reaction, Oxidation-reduction reactions, Fumaric acid

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Pathway of propionate oxidation by a syntrophic culture of Smithella propionica and Methanospirillum hungatei

Article Abstract:

Smithella propionica degrades propionate by a completely different pathway than most other organisms. It appears to dismutate the compound to acetate and butyrate followed by beta-oxidation of butyrate to acetate via a six-carbon intermediate.

Propionates

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