Uptake and degradation of natural and synthetic estrogens by maize seedlings

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dc.contributor.advisor Chin, Yu-Ping
dc.creator Card, Marcella
dc.date.accessioned 2011-04-22T10:49:20Z
dc.date.available 2011-04-22T10:49:20Z
dc.date.issued 2011-03
dc.identifier.uri http://hdl.handle.net/1811/48534
dc.description Food, Agricultural, and Environmental Sciences (FAES): 1st Place (The Ohio State University Edward F. Hayes Graduate Research Forum) en_US
dc.description.abstract Runoff from manure-fertilized crop fields constitutes a significant source of natural estrogens (e.g., estradiol [E2] and estrone [E1]) and synthetic estrogen mimics (e.g., zeranol [α-ZAL] and zearalanone [ZAN]) in the environment. However, processes such as sorption to and uptake by plants may inhibit the environmental mobility of hormonally-active compounds. To evaluate the role of plants in the environmental fate of such compounds, we exposed maize seedlings to hydroponic solutions containing E2, E1, α-ZAL, and ZAN. After 12 days of exposure, ZAN concentrations decreased by 78%, E1 and α-ZAL decreased 99.9%, and E2 was undetectable. Exposure to seedlings resulted in both oxidation (i.e., transformations of E2 to E1 and α-ZAL to ZAN) and reduction reactions (i.e., E1 to E2 and ZAN to α-ZAL). Although the oxidation of E2 and α-ZAL may be attributed to plant-associated microbes, the reduction of E1 and ZAN is unlikely to be microbially-mediated. en_US
dc.language.iso en_US en_US
dc.relation.ispartofseries 2011 Edward F. Hayes Graduate Research Forum. 25th en_US
dc.subject hormone en_US
dc.subject degradation en_US
dc.subject phytoremediation en_US
dc.subject crop en_US
dc.title Uptake and degradation of natural and synthetic estrogens by maize seedlings en_US
dc.type Article en_US
dc.description.embargo A one-year embargo was granted for this item. en_US