Action of 1,1-dimethylhydrazine on bacterial cells is determined by hydrogen peroxide

Zavilgelsky, G. B.; Kotova, V. Yu.; Манухов, И. В.

doi:10.1016/j.mrgentox.2007.07.012

Cited by 58 publications

(35 citation statements)

References 11 publications

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“…Hydrogen peroxide with a concentration of 1.76⋅10‐3 mol L −1 increased the bioluminescence signal by 50 and 8.6 times for only E. coli MG1655 (pKatG‐lux) and E. coli MG1655 (pSoxS‐lux), respectively. The strain E. coli MG1655 (pXen7), possessing a constitutive type of bioluminescence, reacted with the different toxic agents, in a similar way as natural marine bacteria, by depression of whole cell metabolism and following bioluminescence inhibition …”

Section: Resultsmentioning

confidence: 99%

Physico-chemical Properties, Biological and Environmental Impact of Nb-saponites Catalysts for the Oxidative Degradation of Chemical Warfare Agents

et al. 2017

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Niobium‐containing saponite clays are active catalysts, under mild ambient conditions and in the presence of aqueous hydrogen peroxide, in the oxidative abatement of sulfur‐containing blister chemical warfare agent simulants, such as (2‐chloroethyl)ethyl sulfide. Over a Nb‐saponite solid, a complete, selective and safe abatement of the chemical agent was attained within 8 h. The biological and environmental impact of the Nb‐containing nanostructured clays used as decontamination solids was assessed by specific rapid biotoxicity tests on bioluminescent bacteria and vegetable plants. No negative impact on the strain of luminescent bacteria was evidenced in terms of acute and chronic toxicity. No adverse effects have been observed on vegetable plants in terms of germination, vigour and induction of chlorophyll fluorescence either.

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Section: Resultsmentioning

confidence: 99%

Physico-chemical Properties, Biological and Environmental Impact of Nb-saponites Catalysts for the Oxidative Degradation of Chemical Warfare Agents

et al. 2017

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“…In this activated form, RecA protein functions as a coprotease and stimulates the cleavage of LexA and several other proteins, and then leads to initiation of SOS repairing of DNA (Khil and Camerini-Otero, 2002). Many studies reported that the expression of recA was up-regulated in various environmental stresses such as hydrogen peroxide (Robert and Gu, 2004), 1, 1-dimethylhydrazine (Zavilgelsky et al, 2007) and mitomycin C (Khil and Camerini-Otero, 2002). However, our results showed no obvious up-regulation in expression of recA at pyrogallol concentrations below 4 mg L À1 .…”

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confidence: 99%

Allelopathic mechanism of pyrogallol to Microcystis aeruginosa PCC7806 (Cyanobacteria): From views of gene expression and antioxidant system

Shao

et al. 2009

Chemosphere

151

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“…The biosensor with the PkatG promoter fixes production of hydroperoxides in a cell and with the PsoxS promotorsuperoxide anion and NO (Vollmer et al 1997;Belkin et al 2003;Lee and Gu 2003;Zavilgelsky et al 2007;Lushchak 2011). Biosensor strain with PibpA promotor responds to the substances damaging proteins (Van Dyk et al 1994, 1995.…”

Section: Bacterial Strains and Culture Conditionsmentioning

confidence: 99%

Biosensor-based comparison of the ecotoxicological contamination of the wastewaters of Southern Russia and Southern Germany

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Сазыкина

Khmelevtsova

et al. 2016

Int. J. Environ. Sci. Technol.

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To assess the ecotoxicological and sanitary situation in two European metropolis, Rostov-on-Don (Southern Russia) and Munich (Southern Germany), wastewaters of the two cities were examined with a panel of bacterial lux-biosensors:The presence of different genotoxic compounds and substances with the oxidative and membrane-damaging effects was revealed in contaminated wastewater with the applied panel of the lux-biosensors. The integral toxicity was approximately the same in both cities but demonstrated opposite trends. The presence of genotoxicants and peroxides was higher in the majority of the Munich wastewater samples. There were also differences in the presence of individual toxicants. The presence of the genotoxic compounds might also promote development and dissemination of several antibiotic resistance traits found in microorganisms, a feature more pronounced in Rostov-on-Don wastewaters. By means of polymerase chain reaction assay, antibiotic resistance genes to such antibiotics as ermB, vim and vanB were revealed in two Munich samples. Antibiotic resistance genes were present at all Rostov samples, and genes ndm, vanA, vanB and ermB were found. Taken together, the proposed analytical approach with the application of the constructed panel of biosensors can be applied for monitoring of the ecotoxicological contamination in the wastewaters of large cities.

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Action of 1,1-dimethylhydrazine on bacterial cells is determined by hydrogen peroxide

Cited by 58 publications

References 11 publications

Physico-chemical Properties, Biological and Environmental Impact of Nb-saponites Catalysts for the Oxidative Degradation of Chemical Warfare Agents

Physico-chemical Properties, Biological and Environmental Impact of Nb-saponites Catalysts for the Oxidative Degradation of Chemical Warfare Agents

Allelopathic mechanism of pyrogallol to Microcystis aeruginosa PCC7806 (Cyanobacteria): From views of gene expression and antioxidant system

Biosensor-based comparison of the ecotoxicological contamination of the wastewaters of Southern Russia and Southern Germany

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