لخّصلي

Antony van Leeuwenhoek (1632-1723) 1.Developed rabies vaccine in 1885.4 Antony van Leeuwenhoek First microscope (1673) by Antony van Leeuwenhoek

5 LOUIS PASTEUR (1822-1895) Is known as 'Father of Microbiology' because his contribution lead to the development of microbiology as a separate scientific discipline.?Staining techniques: He described methods for the easy microscopic examination of bacteria (1877).He devised a simple method for isolating pure cultures of bacteria by plating out mixed material on a solid culture medium.Koch's postulates: His criteria for proving the causal relationship between a microorganism and a specific disease are known as Koch's postulates.Contributions of Louis Pasteur in Microbiology

8 Contributions of Robert Koch (1843-1910) Robert Koch is known as 'Father of Bacteriology'.2.3.6 1.3.4.5.6.9.10.11.?

Antony van Leeuwenhoek (1632-1723)

1. He constructed the first microscope.


2. The first person to observe microorganisms (1673).


3. Provided accurate description of bacteria (1683).

4
Antony van Leeuwenhoek
First microscope (1673) by Antony van Leeuwenhoek

5
LOUIS PASTEUR (1822–1895)
Is known as ‘Father of Microbiology’ because his contribution lead to the development of microbiology as a separate scientific discipline.

6

1. Coined the term ‘Microbiology’


2. Proposed germ theory of disease in (1857).


3. He established that putrefaction and fermentation was the result of microbial activity.


4. Disapproved theory of spontaneous generation.


5. Developed sterilization techniques.


6. Developed methods and techniques for cultivation of microorganisms.
   Contributions of Louis Pasteur in Microbiology

7
7. Coined the term ‘Vaccine’
8. Discovery of the process of attenuation and chicken cholera vaccine.
9. Developed live attenuated anthrax vaccine. 10. Developed rabies vaccine in 1885.
11. Noticed pneumococci in 1881.
Contributions of Louis Pasteur in Microbiology

8
Contributions of Robert Koch (1843–1910)
Robert Koch is known as ‘Father of Bacteriology’. Staining techniques:
He described methods for the easy microscopic examination of bacteria (1877).
Hanging drop method:
He was the first to use hanging drop method
by studying bacterial motility.

9
Contributions of Robert Koch
Hanging drop method

10
Contributions of Robert Koch
 He devised a simple method for isolating pure cultures of bacteria by plating out mixed material on a solid culture medium.
 Discoveries of the causal agents of anthrax (1876), tuberculosis (1882) and cholera (1883).

11
Contributions of Robert Koch
 Koch’s postulates:
His criteria for proving the causal relationship between a microorganism and a specific disease are known as Koch’s postulates.

12
Koch’s postulates