Advancing environmental risk assessment for transgenic biofeedstock crops |
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Authors: | Jeffrey D Wolt |
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Institution: | (1) Department of Agronomy and Biosafety Institute for Genetically Modified Agricultural Products, Iowa State University, Ames, IA 50011, USA |
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Abstract: | Transgenic modification of plants is a key enabling technology for developing sustainable biofeedstocks for biofuels production.
Regulatory decisions and the wider acceptance and development of transgenic biofeedstock crops are considered from the context
of science-based risk assessment. The risk assessment paradigm for transgenic biofeedstock crops is fundamentally no different
from that of current generation transgenic crops, except that the focus of the assessment must consider the unique attributes
of a given biofeedstock crop and its environmental release. For currently envisioned biofeedstock crops, particular emphasis
in risk assessment will be given to characterization of altered metabolic profiles and their implications relative to non-target
environmental effects and food safety; weediness and invasiveness when plants are modified for abiotic stress tolerance or
are domesticated; and aggregate risk when plants are platforms for multi-product production. Robust risk assessments for transgenic
biofeedstock crops are case-specific, initiated through problem formulation, and use tiered approaches for risk characterization. |
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