Where was gibberellin first discovered?

Gibberellin was first discovered in Japan in the 1920s by researchers studying a fungal pathogen called Gibberella fujikuroi, which caused a disease known as "bakanae" in rice plants. The fungus was found to produce a substance that promoted excessive growth in the infected plants, leading to the identification of gibberellins as growth-regulating hormones. This discovery has since had significant implications in plant Biology and agriculture.