IMIS

Publicaties | Instituten | Personen | Datasets | Projecten | Kaarten
[ meld een fout in dit record ]mandje (0): toevoegen | toon Print deze pagina

Development of a biotic ligand model (BLM) predicting nickel toxicity to barley (Hordeum vulgare)
Lock, K.; Van Eeckhout, H.; De Schamphelaere, K.A.C.; Criel, P.; Janssen, C.R. (2007). Development of a biotic ligand model (BLM) predicting nickel toxicity to barley (Hordeum vulgare). Chemosphere 66(7): 1346-1352. https://dx.doi.org/10.1016/j.chemosphere.2006.07.008
In: Chemosphere. Elsevier: Oxford. ISSN 0045-6535; e-ISSN 1879-1298, meer
Peer reviewed article  

Beschikbaar in  Auteurs 

Trefwoorden
    Bioavailability
    Heavy metals
    Ligands
    Modelling
    Models
    Nickel
    Plants
    Prediction
    Risk analysis
    Risk assessment
    Speciation
    Toxicity
    Toxicology > Ecotoxicology
    [WoRMS]; Hordeum vulgare L.; Spermatophyta [Zaadplanten]
    Zoet water

Auteurs  Top 
  • Lock, K., meer
  • Van Eeckhout, H., meer
  • De Schamphelaere, K.A.C., meer
  • Criel, P.
  • Janssen, C.R., meer

Abstract
    A biotic ligand model (BLM) was developed to predict nickel toxicity, affecting root growth of barley (Hordeum vulgare), in nutrient solutions. The extent to which Ca2+, Mg2+, Na+, K+ ions and pH each influenced nickel toxicity was determined. Higher activities of Mg2+ linearly increased the 4 d EC50Nl2+, while Ca2+, Na+, K+ and H+ activities did not significantly influence Ni2+ toxicity. Stability constants for the binding of Ni2+ and Mg2+ to the biotic ligand were obtained: log KNiBL = 5.27 and log KMgBL = 3.47. Further, it was calculated that on average 57% of the biotic ligand sites needed to be occupied by nickel to induce 50% root growth inhibition. Auto-validation of the BLM indicated that predicted EC50s differed from the observed EC50s by a factor of less than 2, indicating that the BLM concept may also be used to predict metal toxicity to terrestrial plants.

Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid Top | Auteurs