The influence of nitrilotriacetate on heavy metal uptake of lettuce and ryegrass

Kulli Honauer, Beatrice; Balmer, Marianne; Krebs, Rolf; Lothenbach, Barbara; Geiger, Gabriella; Schulin, Rainer

doi:10.2134/jeq1999.00472425002800060002x

Publication type:	Article in scientific journal
Type of review:	Peer review (publication)
Title:	The influence of nitrilotriacetate on heavy metal uptake of lettuce and ryegrass
Authors:	Kulli Honauer, Beatrice Balmer, Marianne Krebs, Rolf Lothenbach, Barbara Geiger, Gabriella Schulin, Rainer
DOI:	10.2134/jeq1999.00472425002800060002x
Published in:	Journal of Environmental Quality
Volume(Issue):	28
Issue:	6
Page(s):	1699
Pages to:	1705
Issue Date:	Nov-1999
Publisher / Ed. Institution:	American Society of Agronomy
ISSN:	1537-2537 0047-2425
Language:	English
Subjects:	Chelating-agents; Plant uptake; Contaminated soils; Phytoremediation; Adsorption; Toxicity
Subject (DDC):	363: Environmental and security problems 577: Ecology
Abstract:	Metal uptake and removal from the soil by plants may be a useful measure to remediate contaminated soils. These processes can be enhanced by adding metal chelators to soil. We investigated the effect of nitrilotriacetate (NTA) and urea on the uptake of Cd, Cn, and Zn by lettuce (Lactuca sativa L. cv. Orion) and Italian ryegrass (Lolium perenne L. cv. Bastion) in pot experiments. Nitric acid-extractable heavy metal concentrations in the contaminated soil were 2 mg Cd, 530 mg Cu, and 700 mg Zn kg(-1). Three NTA treatments (0.5, 1.8, and 5.3 mol m(-2)) were compared with two urea treatments (0.25 and 0.9 mol m(-2)), and a control. Nitrilotriacetate and urea increased the NaNO(3)-extraftable soil concentrations of the three metals. At the highest NTA dose, metal concentrations in the aboveground plant biomass was 4 to 24 times greater than in the control plants. While NTA increased plant metal concentrations, it reduced plant matter production. At lower doses, this effect was small. At the highest NTA dose, plant growth was almost completely inhibited. Severe visual symptoms indicated metal toxicity as the likely cause. The urea treatments generally increased the plant matter production. Total metal uptake was in general larger at the lowest or at the intermediate NTA dose than at the highest doses. Little additional total metal uptake was achieved with NTA treatments than with urea. Compared with the controls, neither NTA nor urea enhanced total uptake under the given conditons by more than threefold.
URI:	https://digitalcollection.zhaw.ch/handle/11475/11754
Fulltext version:	Published version
License (according to publishing contract):	Licence according to publishing contract
Departement:	Life Sciences and Facility Management
Organisational Unit:	Institute of Natural Resource Sciences (IUNR)
Appears in collections:	Publikationen Life Sciences und Facility Management

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Kulli Honauer, B., Balmer, M., Krebs, R., Lothenbach, B., Geiger, G., & Schulin, R. (1999). The influence of nitrilotriacetate on heavy metal uptake of lettuce and ryegrass. Journal of Environmental Quality, 28(6), 1699–1705. https://doi.org/10.2134/jeq1999.00472425002800060002x

Kulli Honauer, B. et al. (1999) ‘The influence of nitrilotriacetate on heavy metal uptake of lettuce and ryegrass’, Journal of Environmental Quality, 28(6), pp. 1699–1705. Available at: https://doi.org/10.2134/jeq1999.00472425002800060002x.

B. Kulli Honauer, M. Balmer, R. Krebs, B. Lothenbach, G. Geiger, and R. Schulin, “The influence of nitrilotriacetate on heavy metal uptake of lettuce and ryegrass,” Journal of Environmental Quality, vol. 28, no. 6, pp. 1699–1705, Nov. 1999, doi: 10.2134/jeq1999.00472425002800060002x.

KULLI HONAUER, Beatrice, Marianne BALMER, Rolf KREBS, Barbara LOTHENBACH, Gabriella GEIGER und Rainer SCHULIN, 1999. The influence of nitrilotriacetate on heavy metal uptake of lettuce and ryegrass. Journal of Environmental Quality. November 1999. Bd. 28, Nr. 6, S. 1699–1705. DOI 10.2134/jeq1999.00472425002800060002x

Kulli Honauer, Beatrice, Marianne Balmer, Rolf Krebs, Barbara Lothenbach, Gabriella Geiger, and Rainer Schulin. 1999. “The Influence of Nitrilotriacetate on Heavy Metal Uptake of Lettuce and Ryegrass.” Journal of Environmental Quality 28 (6): 1699–1705. https://doi.org/10.2134/jeq1999.00472425002800060002x.

Kulli Honauer, Beatrice, et al. “The Influence of Nitrilotriacetate on Heavy Metal Uptake of Lettuce and Ryegrass.” Journal of Environmental Quality, vol. 28, no. 6, Nov. 1999, pp. 1699–705, https://doi.org/10.2134/jeq1999.00472425002800060002x.