Microbiology. Sub groups of Microbes

Август 1, 2022

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Microbiology. Sub groups of Microbes

Содержание

2. Microbiology Microbiology - The science that studies very small living things Usually requires a magnification tool
3. Microbiology Bacteria
4. Microbiology Fungi
5. Microbiology Protozoans Giardia Ameba
6. Microbiology Viruses Bacteriophage Avian Flu
7. Microbiology Various disciplines of study within microbiology: Bacteriology, Mycology, Parisitology, Immunology, Epidemiology, Biotechnology Virology Environmental Microbiology
8. Microbiology Historical review of the Science of Microbiology Robert Hook – 1665 – Englishman, used a
9. Microbiology Antoni Van Leeuwenhoek –1673 - probably the first person to observe living cells with a
10. Microbiology Antoni Van Leeuwenhoek
11. Microbiology Francesco Redi – 1668 – opposed the prevailing theory of Spontaneous Generation, maggots in meat
12. Microbiology Francesco Redi
13. Microbiology Pasteur – French sceintist that dealt the death blow to the spontaneous generation theory. He
14. Microbiology 1. He developed process we call Pasteuriztion – he heated wine to kill contaminating microbes
15. Microbiology Robert Koch - Developed Koch’s postulates – important technique for determining the actual microbial cause
16. Microbiology Koch’s and Pasteur’s work helped establish the “Germ Theory of Disease” - that microorganisms cause
17. Domain Archaea Archaea are single- celled organisms that lack a membrane-bound nucleus. - Prokaryote Archaea can
18. Domain Bacteria Bacteria are single- celled organisms that lack a membrane-bound nucleus. (Prokaryote also) Bacteria are
19. Domain Eukarya The cells of all eukaryotes have a membrane-bound nucleus. Members of the Domain Eukarya
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Microbiology
Microbiology - The science that studies very small living things
Usually

requires a magnification tool – the microscope
Some organisms are large though – Helminths – worms
Sub groups of Microbes we will study
Bacteria
Archaea
Fungi
Protozoans
Algae
Viruses
Multicellular animal parasites – Helminths

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Microbiology
Bacteria

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Microbiology
Fungi

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Microbiology
Protozoans
Giardia Ameba

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Microbiology
Viruses
Bacteriophage Avian Flu

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Microbiology
Various disciplines of study within microbiology:
Bacteriology, Mycology, Parisitology, Immunology,
Epidemiology,
Biotechnology
Virology
Environmental Microbiology
Bioremediation

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Microbiology
Historical review of the Science of Microbiology
Robert Hook – 1665

– Englishman, used a primitive compound (two magnifying lenses)
microscope, reported that life’s smallest units were little boxes – Cells, his work
started the process of the development of the Cell theory of life

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Microbiology
Antoni Van Leeuwenhoek –1673 - probably the first person to

observe living cells with a simple microscope, amateur scientist, ground his own lenses and described what we know today as bacteria – rod shaped , spiral shaped , etc. “animalcules”

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Microbiology
Antoni Van Leeuwenhoek

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Microbiology
Francesco Redi – 1668 – opposed the prevailing theory

of Spontaneous Generation,
maggots in meat , He used covered jars to show that maggots came from flies –strong evidence against spontaneous generation
Now we teach the theory of Biogenesis – Life comes from Life
But issue of Spontaneous Generation was actively believed for many more years

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Microbiology
Francesco Redi

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Microbiology
Pasteur – French sceintist that dealt the death blow to

the spontaneous generation theory.
He devised the ingenious curved necked flasks that prevented contaminated air from reaching boiled beef broth – the broth remained uncontaminated even though exposed to the air
He was very lucky – no endopores present, or it would have failed
(resitant to boiling)

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Microbiology
1. He developed process we call Pasteuriztion – he heated

wine to kill contaminating microbes – cured sick wine (today we heat treatment to kill pathogens in milk also)
2. He proved that fermentation was caused by a microbe – yeast
3. He developed vaccines for rabies and anthrax. Vaccines led to immunity to diseases that routinely killed many people, used to help people long before they understood how they even worked (science of Immunology)
4. He began the revolution in science that led to the Golden Age of
Microbiology (from 1857-1914)

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Microbiology
Robert Koch - Developed Koch’s postulates – important technique for

determining the
actual microbial cause agent of a disease – more later, German, contemporary of Pasteur, several very important contributions
1. He discovered the tuberculosis bug (tubercle bacillus, Mycobacterium tuberculosis)
2. He discovered the cause of anthrax (Bacillus anthracis) – from blood of dead cattle, cultured bacteria in pure culture, injected bacteria in live cattle and they died, then again cultured the bacteria in pure culture. This led to the
establishment of a procedure for determining microbial cause of disease (see p. ____-for modern application of Koch’s postulates)

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Microbiology
Koch’s and Pasteur’s work helped establish the “Germ Theory of

Disease” - that
microorganisms cause disease (in people, animals, and even plants)

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Domain Archaea
Archaea are single- celled organisms that lack a membrane-bound nucleus.

- Prokaryote
Archaea can be found in environments that are too hostile for other life forms.

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Domain Bacteria
Bacteria are single- celled organisms that lack a membrane-bound nucleus.

(Prokaryote also)
Bacteria are found almost everywhere on the planet Earth.

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Domain Eukarya
The cells of all eukaryotes have a membrane-bound nucleus. Members

of the Domain Eukarya are further categorized into one of four Kingdoms. (know these kingdoms)

Microbiology. Sub groups of Microbes

Содержание

Microbiology Microbiology - The science that studies very small living thingsUsually

Microbiology Bacteria

Microbiology Fungi

Microbiology Protozoans Giardia Ameba

Microbiology VirusesBacteriophage Avian Flu

Microbiology Various disciplines of study within microbiology:Bacteriology, Mycology, Parisitology, Immunology,Epidemiology,BiotechnologyVirologyEnvironmental MicrobiologyBioremediation

Microbiology Historical review of the Science of MicrobiologyRobert Hook – 1665

Microbiology Antoni Van Leeuwenhoek –1673 - probably the first person to

Microbiology Antoni Van Leeuwenhoek

Microbiology Francesco Redi – 1668 – opposed the prevailing theory

Microbiology Francesco Redi

Microbiology Pasteur – French sceintist that dealt the death blow to

Microbiology 1. He developed process we call Pasteuriztion – he heated

Microbiology Robert Koch - Developed Koch’s postulates – important technique for

Microbiology Koch’s and Pasteur’s work helped establish the “Germ Theory of

Domain ArchaeaArchaea are single- celled organisms that lack a membrane-bound nucleus.

Domain BacteriaBacteria are single- celled organisms that lack a membrane-bound nucleus.

Domain EukaryaThe cells of all eukaryotes have a membrane-bound nucleus. Members

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