Environmental Fate and Effects of Bacillus thuringiensis (Bt) Proteins from Transgenic Crops:  a Review

Date
2005-05-01
Authors
Clark, Bryan
Phillips, Todd
Coats, Joel
Journal Title
Journal ISSN
Volume Title
Publisher
Altmetrics
Authors
Research Projects
Organizational Units
Entomology
Organizational Unit
Journal Issue
Series
Abstract

This paper reviews the scientific literature addressing the environmental fate and nontarget effects of the Cry protein toxins from Bacillus thuringiensis (Bt), specifically resulting from their expression in transgenic crops. Published literature on analytical methodologies for the detection and quantification of the Cry proteins in environmental matrices is also reviewed, with discussion of the adequacy of the techniques for determining the persistence and mobility of the Bt proteins. In general, assessment of the nontarget effects of Bt protein toxins indicates that there is a low level of hazard to most groups of nontarget organisms, although some investigations are of limited ecological relevance. Some published reports on the persistence of the proteins in soil show short half-lives, whereas others show low-level residues lasting for many months. Improvements in analytical methods will allow a more complete understanding of the fate and significance of Bt proteins in the environment.

Description

Reprinted (adapted) with permission from Journal of Agricultural and Food Chemistry 53 (2005): 4643, doi:10.1021/jf040442k. Copyright 2005 American Chemical Society.

Keywords
Environmental fate, Bt proteins, transgenic crops, nontarget effects, Cry protein
Citation
DOI
Collections