摘要：Bioremediation, the usage of biological systems for removing pollutants from the environment, is an effective tool of microbial ecology. Plants and microorganisms are part of the nature and the use of these systems for remediation does not lead to a negative intervention to the environment. Methods for characterization and identification of cultured microorganisms (mass spectrometry MALDI-TOF) and non-cultured microorganisms (SIP, T-RFLP, etc.) able to degrade PCBs has been developed recently. Microorganisms isolated from the contaminated soil can be used for other bioremediation purposes. Plants play an important role in the removal of xenobiotics from the environment as well. They are able to absorbe pollutants from the contaminated soil, transform them to non-phytotoxic forms and store them in their tissues. Plants also positively affect the rhizosphere microbes by releasing compounds supporting bacterial growth and activity. Plants release secondary metabolites that are potential inducers of the expression of genes involved in the bacterial degradation pathway of PCBs. Higher concetration of these compounds in the rhizosphere could lead to better degradation of these compounds
