7) Challenging Spontaneous generation + biogenesis!

slides 13-18

Who proved maggots come from flies (open jars, not sealed ones) and not rotting meat, supporting biogenesis?

Francesco Redi in 1668

Who boiled nutrient broth thoroughly, sealing flasks before they cooled, and found no microbial growth, supporting biogenesis?

Lazzaro Spallanzani in 1765, but people claimed the heat destroyed the “vital forces

Who boiled nutrient broth into sealed flasks and found microbial growth after it cooled, supporting SG?

John Needham in 1745

Who heated nutrient broth in a S-shaped flask (trapping microbes in the neck), and found the broth sterile while the open flask that was also heated was found contaminated with microbes, supporting biogenesis?

Louis Pasteur in 1859