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Monooxygenase-mediated 1,2-dichloroethane degradation by Pseudomonas sp. strain DCA1

Article Abstract:

A bacterial strain, designated Pseudomonas sp. strain DCA1, was isolated from a 1,2-dichloroethane (DCA)-degrading biofilm. Strain DCA1 utilizes DCA as the sole carbon and energy source and does not require additional organic nutrients, such as vitamins, for optimal growth. The first step in DCA degradation in strain DCA1 is an oxidation reaction. Propene was converted to 1,2-epoxypropane by DCA-grown cells and competitively inhibited DCA degradation. The DCA degradation pathway in strain DCA1 proceeds from chloroacetaldehyde via chloroacetic acid and presumably glycolic acid.

Author: Hartmans, Sybe, Hage, Jacobus C.
Publisher: American Society for Microbiology
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1999
Pseudomonas, Oxidases, Chloroacetic acids, Acetaldehyde, Ethylene dichloride, Propylene oxide

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2-chloro-1,4-dimethoxybenzene as a novel catalytic cofactor for oxidation of anisyl alcohol by lignin peroxidase

Article Abstract:

Good lignin peroxidase (LiP) substrates such as veratryl alcohol (VA) and tryptophan are relatively poor cofactors in anisyl alcohol (AA) oxidation. An alternative cofactor in LiP catalysis, which is superior to both VA and 1,4-dimethoxybenzene (14DMB) in the LiP-catalyzed oxidation of AA, is 2-chloro-1,4-dimethoxybenzene (2Cl-14DMB), which requires only minimal amounts to afford a major increase in AA oxidation. 2Cl-14DMB is a derivative of 14DMB which is generated de novo by the fungi Bjerkandera adusta and Lepista nuda.

Author: Teunissen, Pauline J.M., Field, Jim A.
Publisher: American Society for Microbiology
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1998
Organic compounds, Oxidation-reduction reaction, Oxidation-reduction reactions, Catalysis, Peroxidase

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Interference of peptone and tyrosine with the lignin peroxidase assay

Article Abstract:

The tyrosine present in the peptone and yeast extract used in culturing an N-unregulated white rot fungus Bjerkandera sp. strain BOS55 to produce lignin peroxidase (LiP) inhibited the oxidation of veratryl alcohol (VA) to veratraldehyde (VAD). The fungus produces LiP that is used in reducing lignin with the aid of VA as a cofactor and as a substrate. VAD is formed through the action of the veratryl cation radical.

Author: Hartmans, Sybe, Have, Rimko ten, Field, Jim A.
Publisher: American Society for Microbiology
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1997
Lignin, Tyrosine

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Subjects list: Research, Biodegradation, Physiological aspects, Wood-decaying fungi
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