1. Gram Stains of Bacteria
Some of the unknowns used in class
Note: differences in media used to grow, growth rate,
age of culture, concentration of cells, technique will lead
to differences in appearance when Gram staining.
Bio 243 Microbiology
Muse

2. Escherichia coli
Gram stain

3. Klebsiella pneumoniae
Gram stains

4. Enterobacter aerogenes
Gram stain

5. Staphylococcus aureus
Gram stain

6. Staphylococcus epidermis
Gram stain
The Grapes of Staph!

7. Bacillus subtilis

8. Bacillus cereus
Sporulating: ? stain
Gram stain

9. Bacillus megaterium
Gram stain

10. Bacillus megaterium
Spore stain

11. Micrococcus luteus

12. Pseudomonas aeruginosa
Gram stain

13. Proteus vulgaris
1000x Gram stain
2000x flagellar

14. Mycobacterium smegmatis
Acid Fast Staining