|
Photomicrographs
from Biology 3200 Laboratory Exercise 3
|
| 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 |
|
Title: Gram stain of Escherichia coli cells |
|
|
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 |
 |