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Influence of calcium, magnesium, sodium, potassium and pH on copper toxicity to barley (Hordeum vulgare)

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Influence of calcium, magnesium, sodium, potassium and pH on copper toxicity to barley (Hordeum vulgare). / Lock, Koen; Criel, P; De Schamphelaere, K. A. C; Van Eeckhout, Hilde; Janssen, C. R.

In: Ecotoxicology and Environmental Safety, Vol. 68, Nr. 2, 2007, blz. 299-304.

Onderzoeksoutput: Bijdrage aan tijdschriftA1: Web of Science-artikel

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Author

Lock, Koen ; Criel, P ; De Schamphelaere, K. A. C ; Van Eeckhout, Hilde ; Janssen, C. R. / Influence of calcium, magnesium, sodium, potassium and pH on copper toxicity to barley (Hordeum vulgare). In: Ecotoxicology and Environmental Safety. 2007 ; Vol. 68, Nr. 2. blz. 299-304.

Bibtex

@article{568331a73a994b08bd363f61e424c6db,
title = "Influence of calcium, magnesium, sodium, potassium and pH on copper toxicity to barley (Hordeum vulgare)",
abstract = "The extent to which Ca2+, Mg2+, Na+, K+ ions and pH independently influence copper toxicity to barley (Hordeum vulgare) was assessed by measuring root growth in nutrient solutions. Increased Ca2+ activity resulted in a sixfold decrease in EC50Cu2+ values, while a positive relationship between the cation activity and the EC50 was expected. Increased Mg2+ activity resulted in a twofold increase in EC50Cu2+ values. Na+, K+ and H+ activities did not significantly affect Cu2+ toxicity. The obtained results indicated that competition for binding sites between Cu2+ and cations such as Ca2+, Mg2+, Na+, K+ and H+ is not an important factor in determining Cu2+ toxicity to H. vulgare. However, the EC50s could, with one exception, be predicted within a factor three based on the free Cu2+ activity, indicating that the free Cu2+ activity cannot only be used to predict metal toxicity to aquatic, but also to terrestrial organisms.",
author = "Koen Lock and P Criel and {De Schamphelaere}, {K. A. C} and {Van Eeckhout}, Hilde and Janssen, {C. R}",
note = "Publication Authorstring : Lock, K.; Criel, P.; De Schamphelaere, K.A.C.; Van Eeckhout, H.; Janssen, C.R. Publication RefStringPartII : <i>Ecotoxicology and Environmental Safety 68(2)</i>: 299-304",
year = "2007",
doi = "10.1016/j.ecoenv.2006.11.014",
language = "English",
volume = "68",
pages = "299--304",
journal = "Ecotoxicology and Environmental Safety",
issn = "0147-6513",
publisher = "Elsevier",
number = "2",

}

RIS

TY - JOUR

T1 - Influence of calcium, magnesium, sodium, potassium and pH on copper toxicity to barley (Hordeum vulgare)

AU - Lock, Koen

AU - Criel, P

AU - De Schamphelaere, K. A. C

AU - Van Eeckhout, Hilde

AU - Janssen, C. R

N1 - Publication Authorstring : Lock, K.; Criel, P.; De Schamphelaere, K.A.C.; Van Eeckhout, H.; Janssen, C.R. Publication RefStringPartII : <i>Ecotoxicology and Environmental Safety 68(2)</i>: 299-304

PY - 2007

Y1 - 2007

N2 - The extent to which Ca2+, Mg2+, Na+, K+ ions and pH independently influence copper toxicity to barley (Hordeum vulgare) was assessed by measuring root growth in nutrient solutions. Increased Ca2+ activity resulted in a sixfold decrease in EC50Cu2+ values, while a positive relationship between the cation activity and the EC50 was expected. Increased Mg2+ activity resulted in a twofold increase in EC50Cu2+ values. Na+, K+ and H+ activities did not significantly affect Cu2+ toxicity. The obtained results indicated that competition for binding sites between Cu2+ and cations such as Ca2+, Mg2+, Na+, K+ and H+ is not an important factor in determining Cu2+ toxicity to H. vulgare. However, the EC50s could, with one exception, be predicted within a factor three based on the free Cu2+ activity, indicating that the free Cu2+ activity cannot only be used to predict metal toxicity to aquatic, but also to terrestrial organisms.

AB - The extent to which Ca2+, Mg2+, Na+, K+ ions and pH independently influence copper toxicity to barley (Hordeum vulgare) was assessed by measuring root growth in nutrient solutions. Increased Ca2+ activity resulted in a sixfold decrease in EC50Cu2+ values, while a positive relationship between the cation activity and the EC50 was expected. Increased Mg2+ activity resulted in a twofold increase in EC50Cu2+ values. Na+, K+ and H+ activities did not significantly affect Cu2+ toxicity. The obtained results indicated that competition for binding sites between Cu2+ and cations such as Ca2+, Mg2+, Na+, K+ and H+ is not an important factor in determining Cu2+ toxicity to H. vulgare. However, the EC50s could, with one exception, be predicted within a factor three based on the free Cu2+ activity, indicating that the free Cu2+ activity cannot only be used to predict metal toxicity to aquatic, but also to terrestrial organisms.

U2 - 10.1016/j.ecoenv.2006.11.014

DO - 10.1016/j.ecoenv.2006.11.014

M3 - A1: Web of Science-article

VL - 68

SP - 299

EP - 304

JO - Ecotoxicology and Environmental Safety

JF - Ecotoxicology and Environmental Safety

SN - 0147-6513

IS - 2

ER -

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