PMID- 21898904 OWN - NLM STAT- MEDLINE DCOM- 20111227 LR - 20110907 IS - 1526-4998 (Electronic) IS - 1526-498X (Linking) VI - 67 IP - 10 DP - 2011 Oct TI - The impact of altered herbicide residues in transgenic herbicide-resistant crops on standard setting for herbicide residues. PG - 1193-210 LID - 10.1002/ps.2128 [doi] AB - The global area covered with transgenic (genetically modified) crops has rapidly increased since their introduction in the mid-1990s. Most of these crops have been rendered herbicide resistant, for which it can be envisaged that the modification has an impact on the profile and level of herbicide residues within these crops. In this article, the four main categories of herbicide resistance, including resistance to acetolactate-synthase inhibitors, bromoxynil, glufosinate and glyphosate, are reviewed. The topics considered are the molecular mechanism underlying the herbicide resistance, the nature and levels of the residues formed and their impact on the residue definition and maximum residue limits (MRLs) defined by the Codex Alimentarius Commission and national authorities. No general conclusions can be drawn concerning the nature and level of residues, which has to be done on a case-by-case basis. International residue definitions and MRLs are still lacking for some herbicide-crop combinations, and harmonisation is therefore recommended. CI - Copyright (c) 2011 Society of Chemical Industry. FAU - Kleter, Gijs A AU - Kleter GA AD - RIKILT-Institute of Food Safety, Wageningen University and Research Centre, Wageningen, Holland. gijs.kleter@wur.nl FAU - Unsworth, John B AU - Unsworth JB FAU - Harris, Caroline A AU - Harris CA LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review DEP - 20110830 PL - England TA - Pest Manag Sci JT - Pest management science JID - 100898744 RN - 0 (Pesticide Residues) SB - IM MH - Crops, Agricultural/*genetics/metabolism MH - *Herbicide Resistance MH - *Pesticide Residues MH - Plants, Genetically Modified/*metabolism EDAT- 2011/09/08 06:00 MHDA- 2011/12/28 06:00 CRDT- 2011/09/08 06:00 PHST- 2010/12/12 00:00 [received] PHST- 2011/01/04 00:00 [accepted] PHST- 2011/09/08 06:00 [entrez] PHST- 2011/09/08 06:00 [pubmed] PHST- 2011/12/28 06:00 [medline] AID - 10.1002/ps.2128 [doi] PST - ppublish SO - Pest Manag Sci. 2011 Oct;67(10):1193-210. doi: 10.1002/ps.2128. Epub 2011 Aug 30.