Riboswitches are RNA sequences that regulate expression of associated downstream genes in response to the presence or absence of specific small molecules. A novel riboswitch that activates protein translation in E. coli cells in response to 2,4-dinitrotoluene (DNT) has been
Journal of the American Chemical Society, 133(32), 12858-12865 (2011-07-09)
Polynitroaromatics are well-known to form anionic σ-complexes (Meisenheimer complexes). The formation of such complexes was assumed in the past to explain the blue color of solutions of 2,4-dinitrotoluene (DNT) and amines. However, this work shows that caution is warranted to
Journal of hazardous materials, 192(2), 605-613 (2011-06-15)
The degradation efficiencies of isomeric mononitrotoluenes (2- and 4-NTs) and dinitrotoluenes (2,4-DNT and 2,6-DNT) by either individual bacterial strains (Bacillus cereus NDT4, Pseudomonas putida NDT1, Pseudomonas fluorescens NDT2, and Achromobacter sp. NDT3) or their mixture were compared in submerged batch
Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering, 46(12), 1328-1337 (2011-09-21)
Factors affecting continuous 2,4-DNT degradation by an immobilized mixed microbial culture were investigated including the cell adaptation to this toxic substrate, 4-NT co-degradation, packing material porosity and substrate mass loading. Experiments were carried out in two packed bed reactors, with
The regulation of the DNT pathway for biodegradation of 2,4-dinitrotoluene of Burkholderia sp. DNT has been examined by exporting each of its components to Pseudomonas putida KT2440. The cognate regulator DntR does not respond to the pathway substrate, but to
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