Bacteriology
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Dennis Holley
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Tami Port
Jan 10, 2009
Does Mouthwash Kill Oral Bacteria?
In this simple classroom experiment students place oral samples in test tubes of mouthwash to determine rinse time and brands most effective in killing bacteria.
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Oct 31, 2008
How Do Bacteria Become Resistant to Antibiotics?
Overuse of broad spectrum antibiotics have created superbugs such as Clostridium difficile (C. diff) and Methicillin-resistant Staphylococcus (MRSA).
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Oct 22, 2008
What Is a Bacterial Endospore?
Endospores are somewhat like bacterial seeds, tough structures that allow some bacteria to go dormant under unfavorable conditions.
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Jun 23, 2008
Oral Bacteria & Dental Caries
Dental caries or cavities are caused by acidic metabolites of bacteria that normally inhabit the mouth where they feed on carbohydrates.
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Jun 14, 2008
Bacteria Horizontal Gene Transfer
Although bacterial reproduction results in the generation of clones, prokaryotes can undergo genetic recombination through transformation, transduction, and conjugation.
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Jun 12, 2008
Bacterial Endospore Stain Protocol
Endospore staining involves application of a series of dyes. Malachite green stains endospores and safrinin dyes vegetative cells pink. Here's endospore stain procedure.
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Jun 12, 2008
Bacterial Acid-fast Stain Reaction
Acid fast staining involves the application of a series of dyes that leaves some bacteria pink (Acid-fast) and others purple (Nonacid-fast). Here's how this stain works.
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