Herbicides used with GM crops alter antibiotic resistance of disease-causing bacteria | WHAT REALLY HAPPENED


Herbicides used with GM crops alter antibiotic resistance of disease-causing bacteria

A new study has found that exposure to the herbicides used on GM crops changes how susceptible disease-causing bacteria are to antibiotics. In many cases the bacteria became more antibiotic-resistant, though in other cases they became less so. The study was carried out by Prof Jack Heinemann, Dr Brigitta Kurenbach, and other scientists from New Zealand and Mexico. Below Prof Heinemann and Dr Kurenbach respond to questions from GMWatch.

GMW: What did you find?

Heinemann: When we exposed either of two different species of bacteria to common herbicides that we purchased at a local store, we found that the bacteria changed their response to antibiotics. They often became antibiotic resistant, but we also occasionally saw increased susceptibility or no effect.

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