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Photomicrographs
from Biology 3200 Laboratory Exercise 3
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| Gram Stain | Endospore Stain | Acid Fast Stain |
| Bacillus thuringiensis | B. thuringiensis - Brightfield | Mycobacterium smegmatis |
| Escherichia coli | B. thuringiensis - Phase contrast | Escherichia coli |
| Serratia marcescens | ||
| Staphylococcus epidermidis | PHB Stain | Modified Gin Stain |
| B. thuringiensis - Brightfield | B. thuringiensis | |
| B. thuringiensis - Phase contrast | Escherichia coli |
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Title: Gram stain of Serratia marcescens cells |
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Description: Cells were cultivated Trypticase Soy broth for 24 h at 37C. A heat fixed smear was stained with crystal violet and Gram's iodine, decolorized and counterstained with safranin. The slide was observed under brightfield microscopy with a 100 X oil immersion objective. Material preparation by: Sam Stevenson/Nicole Stady |
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