Competition effects for copper between soil, soil solution and yeast in a bio assay for Folsomia candida willem

S.E.A.T.M. van der Zee, E.J.M. Temminghoff, M.P.J.C. Marinussen

Research output: Contribution to journalArticleAcademicpeer-review

4 Citations (Scopus)

Abstract

We investigated the accumulation of copper (Cu) by the springtail Folsomia candida Willem, if exposed to Cu-contaminated sandy soil with yeast as a food source. Commonly, the dissolved and the easily desorbed Cu fractions are assumed to be available for uptake, and as both fractions depend on pH, a pH dependency of copper uptake and accumulation is expected. In recent studies with springtails this dependency was not observed. To explain this, we show that both the adsorption of copper by yeast and by soil is indeed pH dependent; however, these dependencies differ. Addition of yeast as a food source to copper-contaminated soil leads to competition for copper by yeast and soil that suppresses the pH dependency of copper adsorption by yeast. This may cause a pH dependency not to be observed in copper accumulation by springtails if they predominantly feed on yeast in bioassays. We conclude that the addition of artificial food sources in bioassays may affect the cause-effect relationships that are investigated. A combination of (soil) chemical experimentation and modeling and ecotoxicological studies may help in identifying such bias and, therefore, with interpreting bioassays.
Original languageEnglish
Pages (from-to)1743-1750
JournalEnvironmental Toxicology and Chemistry
Volume23
Issue number7
DOIs
Publication statusPublished - 2004

Fingerprint

Bioassay
Candida
Yeast
yeast
bioassay
Copper
Soil
Yeasts
copper
Soils
Biological Assay
soil
Food
Adsorption
food
Synthetic foods
adsorption
effect
sandy soil
modeling

Keywords

  • contaminated sandy soil
  • dissolved organic-matter
  • saccharomyces-cerevisiae
  • lumbricus-rubellus
  • field conditions
  • heavy-metals
  • ph
  • earthworm
  • toxicity
  • bioavailability

Cite this

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title = "Competition effects for copper between soil, soil solution and yeast in a bio assay for Folsomia candida willem",
abstract = "We investigated the accumulation of copper (Cu) by the springtail Folsomia candida Willem, if exposed to Cu-contaminated sandy soil with yeast as a food source. Commonly, the dissolved and the easily desorbed Cu fractions are assumed to be available for uptake, and as both fractions depend on pH, a pH dependency of copper uptake and accumulation is expected. In recent studies with springtails this dependency was not observed. To explain this, we show that both the adsorption of copper by yeast and by soil is indeed pH dependent; however, these dependencies differ. Addition of yeast as a food source to copper-contaminated soil leads to competition for copper by yeast and soil that suppresses the pH dependency of copper adsorption by yeast. This may cause a pH dependency not to be observed in copper accumulation by springtails if they predominantly feed on yeast in bioassays. We conclude that the addition of artificial food sources in bioassays may affect the cause-effect relationships that are investigated. A combination of (soil) chemical experimentation and modeling and ecotoxicological studies may help in identifying such bias and, therefore, with interpreting bioassays.",
keywords = "contaminated sandy soil, dissolved organic-matter, saccharomyces-cerevisiae, lumbricus-rubellus, field conditions, heavy-metals, ph, earthworm, toxicity, bioavailability",
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year = "2004",
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Competition effects for copper between soil, soil solution and yeast in a bio assay for Folsomia candida willem. / van der Zee, S.E.A.T.M.; Temminghoff, E.J.M.; Marinussen, M.P.J.C.

In: Environmental Toxicology and Chemistry, Vol. 23, No. 7, 2004, p. 1743-1750.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Competition effects for copper between soil, soil solution and yeast in a bio assay for Folsomia candida willem

AU - van der Zee, S.E.A.T.M.

AU - Temminghoff, E.J.M.

AU - Marinussen, M.P.J.C.

PY - 2004

Y1 - 2004

N2 - We investigated the accumulation of copper (Cu) by the springtail Folsomia candida Willem, if exposed to Cu-contaminated sandy soil with yeast as a food source. Commonly, the dissolved and the easily desorbed Cu fractions are assumed to be available for uptake, and as both fractions depend on pH, a pH dependency of copper uptake and accumulation is expected. In recent studies with springtails this dependency was not observed. To explain this, we show that both the adsorption of copper by yeast and by soil is indeed pH dependent; however, these dependencies differ. Addition of yeast as a food source to copper-contaminated soil leads to competition for copper by yeast and soil that suppresses the pH dependency of copper adsorption by yeast. This may cause a pH dependency not to be observed in copper accumulation by springtails if they predominantly feed on yeast in bioassays. We conclude that the addition of artificial food sources in bioassays may affect the cause-effect relationships that are investigated. A combination of (soil) chemical experimentation and modeling and ecotoxicological studies may help in identifying such bias and, therefore, with interpreting bioassays.

AB - We investigated the accumulation of copper (Cu) by the springtail Folsomia candida Willem, if exposed to Cu-contaminated sandy soil with yeast as a food source. Commonly, the dissolved and the easily desorbed Cu fractions are assumed to be available for uptake, and as both fractions depend on pH, a pH dependency of copper uptake and accumulation is expected. In recent studies with springtails this dependency was not observed. To explain this, we show that both the adsorption of copper by yeast and by soil is indeed pH dependent; however, these dependencies differ. Addition of yeast as a food source to copper-contaminated soil leads to competition for copper by yeast and soil that suppresses the pH dependency of copper adsorption by yeast. This may cause a pH dependency not to be observed in copper accumulation by springtails if they predominantly feed on yeast in bioassays. We conclude that the addition of artificial food sources in bioassays may affect the cause-effect relationships that are investigated. A combination of (soil) chemical experimentation and modeling and ecotoxicological studies may help in identifying such bias and, therefore, with interpreting bioassays.

KW - contaminated sandy soil

KW - dissolved organic-matter

KW - saccharomyces-cerevisiae

KW - lumbricus-rubellus

KW - field conditions

KW - heavy-metals

KW - ph

KW - earthworm

KW - toxicity

KW - bioavailability

U2 - 10.1897/03-171

DO - 10.1897/03-171

M3 - Article

VL - 23

SP - 1743

EP - 1750

JO - Environmental Toxicology and Chemistry

JF - Environmental Toxicology and Chemistry

SN - 0730-7268

IS - 7

ER -