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Invoking ideology in the promotion of ecological risk assessment for GM crops

Saturday, February 16, 2013 8:13
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Two environmental risk-assessment approaches, often in contentious conflict, have been proposed and advocated by different groups for assessing the risks to non-target organisms (NTOs) posed by the cultivation of insect-resistant genetically modified (GM) crops. These two approaches are commonly referred to as the ‘ecotoxicological’ and ‘ecological’ approaches [1]. The premise for the ecotoxicological approach is that the gene product (most often a protein) can be evaluated in high-dose laboratory experiments with surrogate test organisms, and only if a hazard is detected are further laboratory or field studies required to evaluate plausible risks. The ecological approach also advocates high-dose laboratory studies with the gene product, but regardless of results, recommends that field studies be conducted. The basic assumption underlying the different approaches is predicated on the likelihood of unexpected adverse environmental effects. Those that ascribe to the ecotoxicological approach believe that unintended effects can be anticipated based on knowledge of the gene products and the genetic mechanisms known to affect the crop phenotype, whereas those that ascribe to the ecological approach do not believe that unintended effects can be predicted with sufficient confidence to forego field evaluations….

Continues @Trends in Biotechnology – Invoking ideology in the promotion of ecological risk assessment for GM crops:



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