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Effect of mineral nutrients on the uptake of Cr(VI) by maize plants

Paper ID Volume ID Publish Year Pages File Format Full-Text
33301 44966 2015 7 PDF Available
Title
Effect of mineral nutrients on the uptake of Cr(VI) by maize plants
Abstract

To determine the potential of maize plants for phytoextraction of chromium (Cr), and the effect that some mineral nutrients have on this process, the uptake of this metal was analyzed in vitro. 12-day-old plants were incubated in nutrient solutions with 200 or 250 μM potassium chromate and 3 mM supplements of nitrate, phosphate or sulfate. The greatest accumulation of Cr after 48 hours was in plants that were supplemented with nitrate (800 and 350 mg kg–1 DW for roots and stems, respectively) with bioaccumulation factors of 18 and 7 in the roots and in the foliage, respectively. Moreover, the translocation factor from root to leaves was 0.4 when nitrate was supplemented; thus, the addition of this nutrient is recommended when the crop is to be used for phytoextraction of Cr. Considering the results obtained, the high biomass produced by this crop and the extensive knowledge of agricultural practices for this plant, we believe that maize has the potential to be considered in the phytoextraction of Cr, based on preliminary assays of soil conditions.

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Effect of mineral nutrients on the uptake of Cr(VI) by maize plants
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Publisher
Database: Elsevier - ScienceDirect
Journal: New Biotechnology - Volume 32, Issue 3, 25 May 2015, Pages 396–402
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
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Price was $35.95
You save - $31
Price after discount Only $4.95
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