What fungus produces an antibiotic used to kill bacteria and save people?

The fungus Penicillium chrysogenum produces penicillin, the first widely used antibiotic that has saved countless lives by effectively killing bacteria. Discovered by Alexander Fleming in 1928, penicillin revolutionized medicine and paved the way for the development of many other antibiotics. Its ability to target and inhibit bacterial growth has made it a cornerstone in the treatment of various bacterial infections.