Abstract
A transport velocity of Pu complexed with the siderophore DFOB has been measured in corn to be at least 174 cm/h. Based on a calculated plant water velocity, a Pu retardation factor of 1–10 was estimated. Dominant Pu species retardation in soil is typically several orders of magnitude higher than this, implying that plants can be a vector for exceptionally rapid upward Pu mobility.
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Acknowledgements
We acknowledge that this research was supported by the Office of Science (BER), U.S. Department of Energy, through Grant No. DE-FG02-07ER64401, and by Clemson University. We thank Ian Stocks of the Entomology, Soils, and Plant Sciences Department at Clemson University for use of and assistance with the microscope and dimensional software.
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Thompson, S.W., Molz, F.J., Fjeld, R.A. et al. Plutonium velocity in Zea mays (corn) and implications for plant uptake of Pu in the root zone. J Radioanal Nucl Chem 282, 439–442 (2009). https://doi.org/10.1007/s10967-009-0143-2
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DOI: https://doi.org/10.1007/s10967-009-0143-2