Effects of Roundup and Glyphosate on Three Food Microorganisms: Geotrichum candidum, Lactococcus lactis subspecies cremoris and Lactobacillus delbrueckii subspecies bul-garicus

The aim of the present study was to shed light on the real impact on biodiversity and ecosystems of Roundup, a major herbicide used worldwide, and the glyphosate it contains. The authors investigated Roundup’s effects on growth and viability using microbial models, namely, three food microorganisms (Geotrichum candidum, Lactococcus lactis subspecies cremoris and Lactobacillus delbrueckii subspecies bulgaricus) widely used as starters in traditional and industrial dairy technologies. The presented results showed evidence that Roundup has an inhibitory effect on microbial growth and a micro biocide effect at lower concentrations than those recommended in agriculture. Interestingly, glyphosate at these levels has no significant effect on the three studied microorganisms. The authors concluded that the findings from this study are consistent with previous studies which demonstrated that the toxic effect of glyphosate was amplified by its formulation adjuvants on different human cells and other eukaryotic models. Moreover, these results should be considered in the understanding of the loss of microbiodiversity and microbial concentration observed in raw milk for many years.

Authors: Clair, Emilie; Linn, Laura; Travert, Carine; Amiel, Caroline; Seralini, Gilles-Eric; Panoff, Jean-Michel ;Full Source: Current Microbiology 2012, 64(5), 486-491 (England) ;