The sorptive capacity of an aquatic macrophyte for the pesticide aminocarb |
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Authors: | Pearl Weinberger Roy Greenhalgh |
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Affiliation: | 1. Department of Biology , University of Ottawa , Ottawa, Ontario, K1N 6N5;2. CBRI , Agriculture Canada , K1A OC6 |
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Abstract: | Abstract Ceratophyllum demersum exposed to a constant 1 μg/rnl aminocarb exhibited a large capacity for the sorption of the pesticide, up to 400 μg/g fresh weight in the dark and 1000 μg/g fresh weight in the light. Smaller, actively growing sprigs sorbed 5 times more pesticide per gm fresh weight than larger, older sprigs, although total uptake per plant was greater in the larger plants. Membrane conformation and integrity appear to be important factors in determining the capacity of this aquatic plant for pesticide sorption. |
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Keywords: | sorption aminocarb macrophyte |
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