Glyphosate and the shikimate pathway (IMAGE) University of Turku Caption In glyphosate-sensitive bacteria, the EPSPS enzyme in the shikimate pathway is blocked by glyphosate and the essential aromatic amino acids are not produced. Glyphosate-resistant bacteria are not affected by the herbicide. In the human core gut microbiome, 54% of bacterial species are potentially sensitive to glyphosate. Credit Pere Puigbò Usage Restrictions Please attribute the image to Pere Puigbò. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.