Establishment of Germ Theory A Dutch cloth merchant used new method or grinding and polishing tiny lenses of great curvature which gave magnifications up to 270 diameters First to see and describe bacteria as animalcules Leeuwenhoek /*3Yi became the pioneer of microbIology Antonie van Leeuwenhoek 1632-1723 等动
Establishment of Germ Theory Antonie van Leeuwenhoek 1632-1723 A Dutch cloth merchant used new method for grinding and polishing tiny lenses of great curvature which gave magnifications up to 270 diameters First to see and describe bacteria as animalcules， Leeuwenhoek became the pioneer of microbiology
Establishment of Germ Theory Created germ theory of disease (germ theory vs miasma theory and spontaneous generation) o Created the first vaccine for rabies o Invented pasteurization o Is regarded as one of the three main founders of microbiology, together with Ferdinand 巴斯德1822-1895 Cohn and robert koch Louis pasteur
Establishment of Germ Theory Created germ theory of disease, (germ theory vs miasma theory and spontaneous generation) Created the first vaccine for rabies Invented Pasteurizaion Is regarded as one of the three main founders of microbiology, together with Ferdinand Cohn and Robert Koch. 巴斯德 1822-1895 Louis Pasteur
Germ Theory vs Spontaneous generation Theory Do not put forward anything that you cannot prove by experimentation Wait 5天 Boil No growth Wait Microbial Boil Break stem growth swan-neck flask experiment
Germ Theory vs Spontaneous Generation Theory "Do not put forward anything that you cannot prove by experimentation" swan-neck flask experiment
Establishment of Germ Theory Heinrich hermann robert koch 1843-1910) ● German physician o Isolating Bacillus anthracis(1877), the tuberculosis bacillus(1882) and the vibrio cholera(1883) o Development of Koch's postulates o He was awarded the nobel prize in Physiology or medicine for his tuberculosis findings in 1905
Establishment of Germ Theory Heinrich Hermann Robert Koch (1843-1910） German physician Isolating Bacillus anthracis (1877), the Tuberculosis bacillus (1882) and the Vibrio cholera (1883) Development of Koch’s postulates He was awarded the Nobel Prize in Physiology or Medicine for his tuberculosis findings in 1905
Pure culture of bacteria initial econd“ streak innoculation with clean probe Colonies colonies derived from single cell with clean probe
Pure culture of bacteria