Scientists develop new defenses against global fungal crop threats

Researchers are developing new methods to combat Magnaporthe oryzae, a destructive fungus responsible for blast disease in rice, wheat, and barley. This pathogen threatens global food security, with rice blast alone destroying enough crops annually to affect the food supply of approximately 60 million people.

At the John Innes Centre in the United Kingdom, an international research team has identified plant immune receptors that can be engineered to recognize and resist multiple fungal threats. By modifying how these proteins detect invading pathogens, scientists aim to create crops with more durable disease resistance.

In parallel, efforts are underway to improve field detection. In Tanzania, scientists from the Tanzanian Agricultural Research Institute (TARI) have been trained to use loop-mediated isothermal amplification (LAMP) assays. These low-cost, rapid tests allow for the early identification of wheat blast. While the disease has not yet been detected in Tanzania, it has been confirmed in neighboring Zambia. The goal is to refine these diagnostic tools to function in rural areas without the need for refrigeration or specialized heating equipment.