This research discovered that viruses can jump between different species of plant-infecting fungi and potentially change how harmful these fungi are to crops. The study found that a virus that doesn’t affect one fungus species can cause disease when it infects a different fungus species. This has important implications for agriculture and disease control. Impacts on everyday life: • Could lead to new environmentally-friendly ways to protect crops from fungal diseases • Helps understand how viruses spread between different organisms in nature • May improve our ability to predict and prevent crop diseases • Could reduce the need for chemical fungicides in agriculture