Rhizospheric Bacteria For Destruction Of Nitrochloroaromatic Compounds
Keywords:rhizoshere, bacteria, nirtochloroaromatics, degradation
AbstractNitrochloroaromatic compounds (NCAC) are one of the most toxic for humans and caused different disorders getting into food chain through agricultural soils with wastewater from enterprises of organic synthesis. It was shown a successful way of destruction of such compounds by microorganisms. The aim of our study was to check the resistance and the ability to degrade NCAC of 17 wheat rhizosphere bacterial strains. It was shown that rhizospheric strains were highly resistant to 1-nitro-4-chlorobenzene (NCB) – the representative compound which combines negative effects of nitro- group, chlorine and aromatic ring. The level of resistance was up to 300 mg/L of NCB. Studied strains were able to degrade it to the end products (CO2, H2O). Moreover, 10 between 17 bacterial strains were able to use 1-nitro-4-chlorobenzene as an additional source of Carbon and energy. These promising results could be used in rhizoremediation biotechnologies.
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