Atrizine sex reversal

Both of these African clawed frogs are genetically male, but lifelong exposure to the herbicide atrazine transformed the frog on the bottom to female. The European Union already bars the use of atrazine. Tyrone Hayes.

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Pesticide atrazine can turn male frogs into females

Those early studies were hampered by the inability atrizine sex reversal easily distinguish genetically male from genetically female frogs. More and more research, however, is showing that atrazine interferes with endocrine hormones, such as estrogen and testosterone — in fish, amphibians, birds, reptiles, laboratory rodents and even human cell lines at levels of parts per billion. Several states are considering banning atrazine, and six class action lawsuits have been filed seeking to eliminate its use. Recent studies also found a possible link between human birth defects and low birth weight and atrazine exposure in the womb.

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Tyrone Hayes. Several states are considering banning atrazine, and six class action lawsuits have been filed seeking to eliminate its use. Subsequent studies showed that native leopard frogs Atrizine sex reversal pipiens collected from atrazine-contaminated streams in the Midwest, including from areas up to 1, miles from where atrazine is applied, often had eggs in their testes.

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