Why do we care about capsules?

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Why do we care about capsules?
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Why do we care about capsules?
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Negative stain

• nigrosin
• Congo red

http//homepages.wmich.edu/rossbach/bios312/LabPr
ocedures/Negative20stain20results.html
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Capsule stain step 2

• stain cytoplasm
• Tylers crystal violet
• Carbol fuschin

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Endospores
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Spores
Spore producer Spore nonproducer
before staining
stain with Malachite green
decolorize (water)
counterstain (safranin)
http//textbookofbacteriology.net/BSRP.html
adapted from Leboffe Pierce (2002) Fig. 3-50
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Types of spores
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(No Transcript)
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Flagella
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Outside the envelope flagella
peritrichous