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  • Title: Plasmid-mediated bioaugmentation of wastewater microbial communities in a laboratory-scale bioreactor.
    Author: Bathe S, Hausner M.
    Journal: Methods Mol Biol; 2010; 599():185-200. PubMed ID: 19882287.
    Abstract:
    Xenobiotic degradation during biological wastewater treatment can be established or enhanced by bioaugmentation - the addition of biological agents carrying biodegradation genes required to perform the task. Whereas the addition of microbial cells carrying chromosomally encoded catabolic genes can be impaired by limited survival of the added microorganisms, the addition of donor organisms carrying a transmissible catabolic plasmid is a promising alternative. This plasmid can spread within the indigenous microbial community of the system, circumventing the need for extended survival of the introduced bacterial strain. Here we discuss how the catabolic plasmid pNB2 can be evaluated towards its potential to facilitate the degradation of a xenobiotic compound, 3-chloroaniline, and demonstrate the applicability of this plasmid to accomplish 3-chloroaniline degradation in a bioreactor setting after in situ transfer to suitable recipient strains.
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