Potato Famine culprit identified from 166-year-old dried leaves

An international team of researchers at the Max Planck Institute for Developmental Biology have identified the strain of Phytophthora infestans that caused the Irish Potato Famine of 1845-1852. In the thick of blight, botanists classified it as a mildew-causing fungus of the Botryotinia genus. In the 20th century it was reclassified as Phytophthora but was …