The atzABC genes encoding atrazine catabolism are located on a self-transmissible plasmid in Pseudomonas sp. strain ADP

Article Abstract:

The physical linkage of the atzABC genes on the plasmid pADP-1 was investigated. Southern hybridization, in-well lysis and plasmid transfer experiments were conducted to determine the location of the genes that encode atrazine catabolism. Results showed that the atzABC genes were localized on the self-transmissible pADP-1 in Pseudomonas sp. strain adenosone triphosphate. Cyanuric acid degradation was not encoded by pADP-1. It was hypothesized that there is a potential molecular mechanism for the dispersion of the atzABC genes to other soil bacteria.

Genetic aspects, Plasmids, Soil microbiology, Pseudomonas, Adenosine triphosphatase

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Substrate specificity of atrazine chlorohydrolase and atrazine-catabolizing bacteria

Article Abstract:

Results show that purified atrazine chlorohydrolase from Pseudomonas hydrolizes a fluorine substituted atrazine analog but not the analogs carrying azido, methoxy, and cyano groups.Data on the dechlorination reaction mediated by the cell extracts of bacteria containing the enzyme show that all have identical substrate specificity.

Statistical Data Included, Analysis, Testing, Enzyme kinetics, Hydrolysis

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Metabolism of thioamides by Ralstonia pickettii TA

Article Abstract:

A bacterium is isolated for its ability to grow on thioacetamide, as its sole nitrogen source in order to study the bacterial thioamide metabolism. The analysis has shown that Ralstonia pickettii and designated strain TA have degraded thioamides through a mechanism involving consecutive oxygenations of the thioamide sulfur atom.

Science & research

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