Campus Units

Entomology

Document Type

Article

Publication Version

Accepted Manuscript

Publication Date

12-21-2012

Journal or Book Title

International Journal of Phytoremediation

Volume

16

Issue

1

First Page

62

Last Page

72

DOI

http://dx.doi.org/10.1080/15226514.2012.759528

Abstract

Extensive use of the agricultural herbicide atrazine has led to contamination of numerous ground and surface water bodies. Research has shown that it can have a variety of negative impacts on numerous non-target organisms in the environment. Phytoremediation is one strategy that has been studied to remove atrazine contamination. This paper investigates the hypothesis that switchgrass (Panicum virgatum) can exude metabolites of atrazine after uptake and degradation, which has been suggested by prior research. Pots planted with switchgrass were treated with a 4 ppm solution of atrazine spiked with [14C]atrazine. After 4 days, switchgrass plants were transplanted to new pots with fresh sand. Four days later, the pots were sacrificed, and sand and plant samples were extracted. Plant and sand samples were analyzed for the presence of atrazine and its major metabolites. The percentage of radiotracer remaining as the parent atrazine was observed to decrease over the course of the study while the percentages of the metabolites were observed to increase. The presence of the metabolite cyanuric acid in a switchgrass phytoremediation system is reported for the first time.

Comments

This is an Accepted Manuscript of an article published by Taylor & Francis in International Journal of Phytoremediation on December 21, 2012; 16(1); 62-72, available online: http://www.tandf.com/doi/abs/10.1080/15226514.2012.759528.

Copyright Owner

Taylor & Francis

Language

en

File Format

application/pdf

Published Version

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