Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10686670 | Journal of Environmental Radioactivity | 2016 | 11 Pages |
Abstract
Subsequently a full dose response curve for U was established by exposing L. minor plants to U concentrations ranging from 0.05 μM up to 150 μM for 7 days. Uranium was shown to adversely affect growth of L. minor in a dose dependent manner with EC10, EC30 and EC50 values ranging between 1.6 and 4.8 μM, 7.7-16.4 μM and 19.4-37.2 μM U, respectively, depending on the growth endpoint. Four different growth related endpoints were tested: frond area, frond number, fresh weight and dry weight. Although differences in relative growth rates and associated ECx-values calculated on different endpoints are small (maximal twofold difference), frond area is recommended to be used to measure U-induced growth effects as it is a sensitive growth endpoint and easy to measure in vivo allowing for measurements over time.
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Nuclear Energy and Engineering
Authors
Nele Horemans, May Van Hees, Eline Saenen, Arne Van Hoeck, Valérie Smolders, Ronny Blust, Hildegarde Vandenhove,