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Polyethylene glycol dehydrogenating activity demonstrated by dye linked alcohol dehydrogenase of rhodopseudomonas acidophila m402



Polyethylene glycol dehydrogenating activity demonstrated by dye linked alcohol dehydrogenase of rhodopseudomonas acidophila m402



Agricultural and Biological Chemistry 55(3): 837-844



Ethylene glycols and polyethylene glycols inhibited the growth of a photosynthetic bacterium, Rhodopseudomonas acidophila, strain M402 under aerobic-dark and anaerobic-light culture conditions. However, polyethylene glycol dehydrogenating activity was demonstrated with phenazine methosulfate (PMS) as an electron acceptor in parallel with the PMS-linked aromatic alcohol dehydrogenase activity. Addition of ethylene glycols or polyethylene glycols to the culture neither induced aromatic alcohol dehydrogenase, nor accelerated polyethylene glycol dehydrogenating activity. Purified PMS-linked aromatic alcohol dehydrogenase had high affinities toward diethylene glycol and polyethylene glycols. This indicated that the dye-linked aromatic alcohol dehydrogenase is capable of oxidizing these xenobiotic synthetic polymer alcohols, polyethylene glycols. There is no evidence on the existence of a specific polyethylene glycol dehydrogenase in this bacterium.

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Accession: 007666147

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DOI: 10.1080/00021369.1991.10870647


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