Sequential demethoxylation reactions during methylotrophic growth of methoxylated aromatic substrates with Eubacterium limosum

H 2 -CO 2 -Dependent Anaerobic O-Demethylation Activity in Subsurface Sediments and by an Isolated Bacterium

“…3 and 4). Sequential anaerobic 0 demethylation of syringate (8,38,39,41) and other multimethoxylated aromatic compounds (11,38) has been noted previously. It was hypothesized that a singleenzyme system with different affinities for syringate and methylgallate accounts for the sequential nature of the reaction (8).…”

Anaerobic Metabolism: Linkages to Trace Gases and Aerobic Processes

“…The O-demethylation (demethyoxylation) of phenylmethylethers has received considerable attention since the methyl product can serve as a C\ substrate (i.e., not C-C bonds) for bacterial growth (Evans and Fuchs, 1988;Young and Frazer, 1987). Many of the O-demethylating strains of bacteria are acetogenic (Section 8.08.3.2.1) (Frazer, 1995;Kreft and Schink, 1993;Kreft and Schink, 1997;Kiisel et al, 2000;Wu et al, 1988), but several other types of anaerobic and facultatively anaerobic bacteria have the ability to demethoxylate aromatic rings, including sulfate reducers, nitrate reducers, fermentative bacteria, and other strains involved in anaerobic syntrophy (Section 8.08.3.2.2) (Cocaign et al, 1991;Krumholz and Bryant, 1985;Liu and Suflita, 1993;Mountfort et al, 1988;Phelps and Young, 1997;Young and Frazer, 1987). Some pure cultures are capable of removing a variety of functional groups from aromatic rings (Kiisel et al, 2000).…”

Comparative evaluation of the metabolic potentials of different strains of Peptostreptococcus productus: utilization and transformation of aromatic compounds

“…A variety of methoxylated aromatic compounds were O-demethylated by P, productus ATCC 35244 to their corresponding hydroxylated derivatives. This strain of P. productus is therefore similar to other acetogenic bacteria in the catabolism of O.methyi residues of aromatic compounds [16][17][18][19][20][21][22]. Methanol does not support the growth of P. productus ATCC 35244 ([6] and data not shown).…”