Stem Rust infecting Barberry
Vanessa Bueno-Sancho, John Innes Centre
Stem rust is caused by a fungal pathogen that needs two hosts to complete its life cycle: barberry and wheat. This picture shows all three organisms: the fungus and both hosts. The leaves of the barberry show signals of stem rust infection (the orange lesions) and in the background, a wheat field.
The picture was taken on a field trip to collect samples from infected barberry bushes. Scientists at the John Innes Centre are studying different species of rust as it's one of agriculture’s most devastating plant diseases, posing a significant challenge for farmers globally and is a serious threat to food security.