Transgenic plants to improve rhizoremediation of polychlorinated biphenyls (PCBs).

Abstract : Recent investigations have shown that the three components of the biphenyl dioxygenase and the 2,3-dihydroxybiphenyl dioxygenase can be produced actively in transgenic plants. Both enzymes catalyze critical steps of the bacterial polychlorinated biphenyl (PCB) degrading pathway. On the basis of these observations, optimized plant-microbe bioremediation processes in which transgenic plants would initiate PCB metabolism and release the metabolites for further degradation by rhizobacteria has been proposed. Since this is still a relatively new approach for PCB remediation, its successful application will require efforts first, to engineer improved PCB-degrading enzymes; second, to co-ordinately express these enzymes' components in plants; and third, to better understand the mechanisms by which plants and rhizobacteria interact to degrade organic pollutants.
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Submitted on : Thursday, May 2, 2013 - 3:48:33 AM
Last modification on : Monday, October 8, 2018 - 5:44:04 PM

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Michel Sylvestre, Tomas Macek, Martina Mackova. Transgenic plants to improve rhizoremediation of polychlorinated biphenyls (PCBs).. Current Opinion in Biotechnology, Elsevier, 2009, 20 (2), pp.242-7. ⟨10.1016/j.copbio.2009.01.006⟩. ⟨pasteur-00819639⟩

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