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  • 1.
    Kumar, Ranjeet
    et al.
    School of Science and Technology, The Life Science Center-Biology, Örebro University, Örebro, Sweden.
    Pradhan, Ajay
    School of Science and Technology, The Life Science Center-Biology, Örebro University, Örebro, Sweden.
    Khan, Faisal Ahmad
    Örebro University, School of Science and Technology.
    Lindström, Pia
    Boliden Mineral AB, Boliden, Sweden.
    Ragnvaldsson, Daniel
    Envix Nord AB, Umeå , Sweden.
    Ivarsson, Per
    ALS Scandinavia AB, Täby, Sweden.
    Olsson, Per-Erik
    Örebro University, School of Science and Technology.
    Jass, Jana
    Örebro University, School of Science and Technology.
    Comparative analysis of stress induced gene expression in caenorhabditis elegans following exposure to environmental and lab reconstituted complex metal mixture2015In: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 10, no 7, article id e0132896Article in journal (Refereed)
    Abstract [en]

    Metals are essential for many physiological processes and are ubiquitously present in the environment. However, high metal concentrations can be harmful to organisms and lead to physiological stress and diseases. The accumulation of transition metals in the environment due to either natural processes or anthropogenic activities such as mining results in the contamination of water and soil environments. The present study used Caenorhabditis elegans to evaluate gene expression as an indicator of physiological response, following exposure to water collected from three different locations downstream of a Swedish mining site and a lab reconstituted metal mixture. Our results indicated that the reconstituted metal mixture exerted a direct stress response in C. elegans whereas the environmental waters elicited either a diminished or abrogated response. This suggests that it is not sufficient to use the biological effects observed from laboratory mixtures to extrapolate the effects observed in complex aquatic environments and apply this to risk assessment and intervention.

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