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Microbes are organisms that we can not see without using a microscope.

The major groups of microbes:

Eubacteria

Archeobacteria

Protozoans

 Fungi

Viruses http://www.bact.wisc.edu/Bact303/MajorGroupsOfProkaryotes http://www.bact.wisc.edu/Bact303/MajorGroupsOfProkaryotes

“True Bacteria” http://www.bact.wisc.edu/Bact303/MajorGroupsOfProkaryotes cocci

Three basic shapes bacilli spirilla

Causes Strep throat

Streptococcus pyogenes http://www.bact.wisc.edu/Bact330/lecturespyo

The spirochete Treponema pallidum

Causes Syphilis http://www.bact.wisc.edu/Bact330/lecturesyphilis

Causes Lyme disease..

Ticks are the carriers.

Borrelia burgdorferi FA stain (CDC) http://www.bact.wisc.edu/Bact330/lecturelyme

Stained with violet dye purple

Treated then with Iodine

Rinsed with alcohol

Stained again with Safranine pink

Gram negative

Gram positive

Stains work differently with different cell walls

http://www-micro.msb.le.ac.uk/Video/Bcereus.html

A Gram positive rod is Bacillus cereus. This bacteria is one of a group of gram postive rods which are aerobic, ubiquitous and form endospores .Because its spores are heat resistance, they are difficult to kill. Toxins may be produced. Food spoilage is a favorite of these organisms

“Ancient Bacteria”

Thermacidophiles

Methanogens

Halophiles http://www.bact.wisc.edu/Bact303/ b12

Boulder Springs, Yellowstone

http://www.uwinnipeg.ca/~simmons/virtual.htm

http://www.bact.wisc.edu/Bact303/b12 http://www-micro.msb.le.ac.uk/Video/video.html

http://biology.nwc.cc.wy.us/biology/b1010lab/bactyp es.htm

http://www.kent.k12.wa.us/staff/kloschky/MoneransFol der/eubacteria.html

PTTL03

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