Testing genetically engineered potato, producing the lectins GNA and Con A, on non‐target soil organisms and processes

By B. Griffiths, I. Geoghegan, W. M. Robertson. 2000

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Development of a model system to assess the impact of genetically modified corn and aubergine plants on arbuscular mycorrhizal fungi (2005, background): “it potato lines producing Galanthus nivalis agglutinin and of glyphosate resistant Brassica napus (Griffiths et al., 2000; Siciliano and Germida, 1999).”
Effects of transgenic plants on soil microorganisms (2005, methodology): “…experiments demonstrated that although GNA-producing potato lines consistently altered the Biolog GN metabolic fingerprinting of the rhizosphere microbial community at harvest, the effect did not persist from one season to the next over a trial period of two field seasons (Griffiths et al., 2000).”
The release of genetically modified crops into the environment. Part II. Overview of ecological risk assessment. (2003, background): “Many studies have reported no changes in microbe populations in the rhizosphere over a range of many different GM plant modifications (e.g. Griffiths et al., 2000, for lectin-producing potatoes).”
Effects of genetically modified plants on microbial communities and processes in soil (2003, background): “Griffiths et al. 1999, 2000 Alfalfa Lectins Con A and GNA production No effect on protozoa, nematodes; only consistent effects increase of dehydrogenase activity, and difference in CLPP of microbial community at harvest (but did not persist from one season to the next)”