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Denver School of Nursing – General Education Classes Lecture / Laboratory :Monday 10:00 am – 2:24pm Lecture:Tuesday 4:30pm – 6:30pm Instructor: Lisa Johansen,

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Presentation on theme: "Denver School of Nursing – General Education Classes Lecture / Laboratory :Monday 10:00 am – 2:24pm Lecture:Tuesday 4:30pm – 6:30pm Instructor: Lisa Johansen,"— Presentation transcript:

1 Denver School of Nursing – General Education Classes Lecture / Laboratory :Monday 10:00 am – 2:24pm Lecture:Tuesday 4:30pm – 6:30pm Instructor: Lisa Johansen, PhD Microbiology

2 When you see the word microbiology… What do you think of?? Microbiology

3 What is your connection to microbiology?? Work? Home? Health? Microbiology

4 Chapter 1 The Science of Microbiology

5  Six subgroups  Bacteria  Archaea  Algae  Fungi  Protozoa  Viruses  Helminths **

6  1674Leeuwenhoek: sees microorganisms  1796Jenner: vaccine for smallpox  1847Semmelweiss: cause of childbed fever  1859Pasteur: disproves spontaneous gen.  1865Lister: introduces antiseptic technique  1876Koch: pure culture on agar  1892Iwanowski: discovers viruses  1894Ehrlich: selective toxicity  1929Fleming: discovers penicillin  1977Woese: classifies archaea

7  Made his own microscopes  Antony van Leeuwenhoek ▪ Looked at everything he could ▪ White matter from his teeth

8  Observation:  Dairymaids who had mild cowpox infections were protected from smallpox  Hypothesis  Cowpox infection provides protection against smallpox  Experiment  Inoculated boy with cowpox fluid and later challenged with smallpox fluid  Result  Boy did not get smallpox

9  Wash your hands!  Ignaz Semmelweis ▪ Medical students were bring disease from the morgue to the women’s clinic

10  Life is formed from inanimate objects  Fruit flies!!!

11  Louis Pasteur  Used swan-neck flask  Boiled broth  Open to the air  No growth unless broth was washed into the curved neck

12  Against infection via phenol  Joseph Lister ▪ How good is the mouthwash though?

13  Koch ’ s Postulates 1. Microbes present in samples of diseased animal 2. Grow organism in pure culture 3. Inject healthy animal with cultured cells 4. Animal develops same disease

14  Smaller than bacteria - filterable  Dmitri Iwanowski and Martinus Beijerinick ▪ Tobacco mosaic virus

15  Chemotherapy  Paul Ehrlich ▪ Magic Bullet Theory

16  The birth of antibiotics  Alexander Fleming ▪ Bad lab techniques made him famous

17  Not just bacteria anymore  Carl Woese ▪ Extremophiles

18  Diagnostics  Treatments  Genomics  Epidemiology  Emerging diseases  Bioremediation  Environment micro / microbial ecology  Green fuels  Bioterrorism  Bioengineering  Agricultural microbiology  Industrial microbiology

19 Chapter 10 meet the microbes! Six subgroups Bacteria Archaea Algae Fungi Protozoa Viruses Helminths **

20 Classification systems and names Kingdom

21 Writing names properly binomial nomenclature genus species Escherichia coli or Escherichia coli E. coli or E. coli

22 bacteria = binomial nomenclature plus genus species strains E. coli K12 E. coli ML30 E. coli 0157:H7

23 How we classify - methods - old

24 How we classify - Dichotomous key - an oldie but goodie

25 How we classify - methods - new molecular biology / genetics

26 Molecular biology and identification

27 The Prokaryotes - Ch. 11 Archaea Bacteria

28 Prokaryotes: Homework Chose 5 bacteria (total) from different 5 different phyla (Ch. 11) and describe: habitat - where is it normally found? shape (morphology - what does it look like under the microscope) pathogenesis (does it cause disease? if so how?) three interesting facts (not covered above) think medical or environmental importance unique features include a picture of the organism This must be a PowerPoint presentation. This is part of your weekly presentation grade. Due 1/14/13 @ beginning of class - on a thumb drive or email to me.

29 Eukaryotes and Helminths and Arthropod vectors Chapter 12

30 A few eukaryotes to know about: Fungi macroscopicmicroscopic

31 Eukaryotic cells - Fungi heterotrophic saprobe

32 Eukaryotic cells - Fungi yeast colonies mycelium spores

33 A few eukaryotes to know about: Fungi

34 Fungal diseases : thermal dimorphoism

35 Mycoses = fungal infections ringworm / tinea athletes foot / tinea thrush Cryptococcus Aspergillus

36 Good Fungi

37 Good Fungi - antibiotic producers

38 A few eukaryotes to know about: Algae

39 A few eukaryotes to know about: Lichens

40 A few eukaryotes to know about: Protozoa Paramecium Amoeba Giardia

41 A few eukaryotes to know about: Protozoa: trypanosome

42 A few eukaryotes to know about: Protozoa: Toxoplasma gondii

43 A few eukaryotes to know about: Protozoa: Plasmodium

44 A few eukaryotes to know about: Slime molds http://www.youtube.com/watch?v=bkVhLJLG7ug

45 A few eukaryotes to know about: Helminths Intestinal Helminths

46 Eukaryotes - Helminths FlukesTapewormsRoundworms

47 YOU and Helminths diseases

48 Parasitic Helminths

49 A few eukaryotes to know about: Arthropod vectors

50 YOU and Arthropod vectors / diseases

51 Chapter 13 - Viruses !!!!!!!!!!!

52 Viruses- naked vs. enveloped

53 Viruses - such cool shapes

54 Virus “life” cycle

55 Viruses - entry

56 Viruses - exit

57 Viruses - types of genomes

58 Virus classification http://www.virology.ws/2009/08/07/how-viruses-are-classified/

59 Viruses - reproduction

60

61 YOU and viral diseases Poliovirus

62 YOU and viral diseases Influenza

63 Influenza – why you have to get a immunization each year

64 YOU and viral diseases HIV – Human Immunodeficiency Virus

65 Retroviruses - reverse transcription

66 Retroviruses - genome integration

67 YOU and viral diseases Mononucleosis – Epstein Barr Virus

68 YOU and viral diseases Herpes Virus

69 YOU and viral diseases: Cancer http://cancer.about.com/od/cancercauses/a/Viruses-And-Cancer.htm

70 Phage / bacteriophage – lytic vs. lysogenic cycle http://biology.about.com/od/virology/ss/Bacteriophage.htm

71 Phage / bacteriophage – lytic vs. lysogenic cycle

72 Viruses and plants http://www.microbiologybytes.com/virology/Plant.html http://www.sciencedaily.com/releases/2011/08/110810093833.htm http://en.wikipedia.org/wiki/Plant_virus http://www.ipm.iastate.edu/ipm/hortnews/2007/4-11/sick.html

73 What if you are already sick: Antivirals

74 For next week: Your bacterial presentations - chapter 11 Multiple choice quiz chapters 1 - History 10 - classification 12 - eukaryotes 1 3 - viruses Read chapters 2 - 3 - 4 Read Lab exercises 5, 6, 7


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