Biodegradation bacterial community

Rontani J.-F., Bonin P., Volkman J.K. (1999) Biodegradation of free phytol by bacterial communities isolated from marine sediments under aerobic and denitrifying conditions. Appl. Environ. Microbiol. 65, 5484—92. 

Transformation/degradation processes biodegradation, chemical hydrolysis, oxidation-reduction reactions and photolysis, the last only at the surface of the soil. Biological transformations comprise the main degradation pathway in the soil layer, where there is an active bacterial community, possibly up to some tens of centimetres deep. 

Herein, various molecular tools are described and their apphcations in biodegradation studies are discussed. These methods are classified into four categories namely fingerprinting, hybridization, analytical PCR and activity techniques. The use of these techniques will enable researchers to gain more insights into the diversity of bacterial communities and their role in contaminated sediments. An overview of the molecular techniques described herein is presented in Fig. 1. 

In this study, oil-contaminated soil in Tianjin and was used for domestication at different temperatures. Two different communities of bacteria depend on crude oil as sole carbon source were foimd and the main foundation of temperature on the microbial community screening was researched and revealed. The biodegradation characteristic was studied then. The effect of combined remediation by winter wheat and cold-adapted degrading bacterial was examined. In order to explore the effect of combined remediation by bacterial and plant at low temperature on petroleum hydrocarbons contaminated sod, the TPH removal and the catalase activity were examined at different incubation time in different treatments. 

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