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Phytoremediation potential of the novel atrazine tolerant Lolium multiflorum and studies on the mechanisms involved. | LitMetric

Phytoremediation potential of the novel atrazine tolerant Lolium multiflorum and studies on the mechanisms involved.

Environ Pollut

Cátedra de Microbiología Industrial y Biotecnología, Universidad de Buenos Aires, Argentina.

Published: November 2009

AI Article Synopsis

Article Abstract

Atrazine impact on human health and the environment have been extensively studied. Phytoremediation emerged as a low cost, environmental friendly biotechnological solution for atrazine pollution in soil and water. In vitro atrazine tolerance assays were performed and Lolium multiflorum was found as a novel tolerant species, able to germinate and grow in the presence of 1 mg kg(-1) of the herbicide. L. multiflorum presented 20% higher atrazine removal capacity than the natural attenuation, with high initial degradation rate in microcosms. The mechanisms involved in atrazine tolerance such as mutation in psbA gene, enzymatic detoxification via P(450) or chemical hydrolysis through benzoxazinones were evaluated. It was demonstrated that atrazine tolerance is conferred by enhanced enzymatic detoxification via P(450). Due to its atrazine degradation capacity in soil and its agronomical properties, L. multiflorum is a candidate for designing phytoremediation strategies for atrazine contaminated agricultural soils, especially those involving run-off avoiding.

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Source
http://dx.doi.org/10.1016/j.envpol.2009.05.036DOI Listing

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