Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Contributions of Xenobiotic-Degrading Bacterial Endophytes to the Field of Phytoremediation
Phytoremediation of organic contaminants occurs as a result of a complex set of interactions between plants and their associated microorganisms. However, the technique has failed to produce consistent and satisfactory results due to incomplete degradation and phytotoxicity of intermediate and parent compounds. In the case of the phytoremediation of recalcitrant organic pollutants, such as polycyclic aromatic hydrocarbons (PAHs), discrepancies between desired and actual results become more pronounced due to reduced mobility of the compounds in soils. Addition of bacterial endophytes, a novel group of microorganisms that reside within plants, may prove to be the missing ingredient that both degrades the chemical compounds and protects plants from their toxicity. It is our conjecture that these microorganisms are a key part of a set of interactions between the host plant and all of its associated microorganisms (endophytic and rhizospheric) that coordinate to mobilize and break down the soil pollutants. We have isolated a species of endophytic bacteria and shown it to use the model PAH phenanthrene as a sole carbon source. Greater understanding of the interactions between plants and endophytic bacteria in remediation systems may serve to optimize the technique of phytoremediation.
Contributions of Xenobiotic-Degrading Bacterial Endophytes to the Field of Phytoremediation
Phytoremediation of organic contaminants occurs as a result of a complex set of interactions between plants and their associated microorganisms. However, the technique has failed to produce consistent and satisfactory results due to incomplete degradation and phytotoxicity of intermediate and parent compounds. In the case of the phytoremediation of recalcitrant organic pollutants, such as polycyclic aromatic hydrocarbons (PAHs), discrepancies between desired and actual results become more pronounced due to reduced mobility of the compounds in soils. Addition of bacterial endophytes, a novel group of microorganisms that reside within plants, may prove to be the missing ingredient that both degrades the chemical compounds and protects plants from their toxicity. It is our conjecture that these microorganisms are a key part of a set of interactions between the host plant and all of its associated microorganisms (endophytic and rhizospheric) that coordinate to mobilize and break down the soil pollutants. We have isolated a species of endophytic bacteria and shown it to use the model PAH phenanthrene as a sole carbon source. Greater understanding of the interactions between plants and endophytic bacteria in remediation systems may serve to optimize the technique of phytoremediation.
Contributions of Xenobiotic-Degrading Bacterial Endophytes to the Field of Phytoremediation
Schmidt, Sarah L. (Autor:in) / Han, Jong-In (Autor:in)
GeoCongress 2008 ; 2008 ; New Orleans, Louisiana, United States
GeoCongress 2008 ; 519-526
07.03.2008
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Contributions of Xenobiotic-Degrading Bacterial Endophytes to the Field of Phytoremediation
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