Chapter 1. Microorganisms and Microbiology Introductory to microbiology History of microbiology

Chapter 1. Microorganisms and Microbiology Introductory to microbiology Microbiology Microorganisms as cells The natural environment of microorganisms Microorganism and humans

Chapter 1. Microorganisms and Microbiology Introductory to microbiology Microbiology: studies of microorganisms and their impact on our life.

Chapter 1. Microorganisms and Microbiology Introductory to microbiology Microbiology: studies of microorganisms and their impact on our life. cyanobacteria Purple bacteria

Chapter 1. Microorganisms and Microbiology Introductory to microbiology Microbiology Microorganisms as individual cells Consume food Reproduce Differentiate Communicate Move Evolve

Chapter 1. Microorganisms and Microbiology Introductory to microbiology Microbiology Microorganisms as cells The natural environment of microorganisms microbial communities, ecosystem

Fig. 1. 5b. A bacterial community in a sewage sludge Fig. 1.5b. A bacterial community in a sewage sludge. The sample was stained with a series of dyes.

Chapter 1. Microorganisms and Microbiology Introductory to microbiology Microbiology Microorganisms as cells The natural environment of microorganisms Microorganism and humans Disease

Fig. 1.7 Death rate for the 10 leading causes of death in the United States

Fig. 1.7 Death rate for the 10 leading causes of death in the United States

Chapter 1. Microorganisms and Microbiology Introductory to microbiology Microbiology Microorganisms as cells The natural environment of microorganisms Microorganism and humans Disease Food Agriculture Energy and environment Biotechnology

Chapter 1. Microorganisms and Microbiology Introductory to microbiology Microbiology Microorganisms as cells The natural environment of microorganisms Microorganism and humans History of microbiology The 300 year history of microbiology Antoni van Leeuwenhoek

Fig. 1.9 The replica of Leeuwenhoek’s microscope and red blood cells

Chapter 1. Microorganisms and Microbiology Introductory to microbiology Microbiology Microorganisms as cells The natural environment of microorganisms Microorganism and humans History of microbiology The 300 year history of microbiology Antoni van Leeuwenhoek Louis Pasteur

Fig. 1.11 Pasteur’s experiment with the swan-necked flask

Fig. 1.11 Pasteur’s experiment with the swan-necked flask

Fig. 1.11 Pasteur’s experiment with the swan-necked flask

Chapter 1. Microorganisms and Microbiology Introductory to microbiology Microbiology Microorganisms as cells The natural environment of microorganisms Microorganism and humans History of microbiology The 300 year history of microbiology Antoni van Leeuwenhoek Louis Pasteur Ferdinand Cohn

Chapter 1. Microorganisms and Microbiology Introductory to microbiology Microbiology Microorganisms as cells The natural environment of microorganisms Microorganism and humans History of microbiology The 300 year history of microbiology Antoni van Leeuwenhoek Louis Pasteur Ferdinand Cohn Robert Koch

Koch’s postulates The organism should be present in all cases of the disease and absent from healthy animals. The suspect organism should be grown in pure culture. Cells from the pure culture should cause the disease in a healthy animal. The organism should be reisolated and shown to be the same as the original.

Chapter 1. Microorganisms and Microbiology Introductory to microbiology Microbiology Microorganisms as cells The natural environment of microorganisms Microorganism and humans History of microbiology The 300 year history of microbiology Antoni van Leeuwenhoek Louis Pasteur Ferdinand Cohn Robert Koch Richard Petri

Chapter 1. Microorganisms and Microbiology Introductory to microbiology Microbiology Microorganisms as cells The natural environment of microorganisms Microorganism and humans History of microbiology The 300 year history of microbiology Antoni van Leeuwenhoek Louis Pasteur Ferdinand Cohn Robert Koch Richard Petri Edward Delong End