A closer look at the difference between Gram-negative and Gram-positive bacteria.
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A closer look at the difference between Gram-negative and Gram-positive bacteria. |
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| Retains the gram stain | Does not retain the gram stain |
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| Thick peptidoglycan layer. No outer membrane of lipopolysaccharide. | Thin peptidoglycan layer. An outer membrane of lipopolysaccharide. |
| Does not induce a clotting reaction in Limulus | Induces a clotting reaction in Limulus |
| Comprises most terrestrial bacteria. | Comprises most marine bacteria. |
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Sources of LPS - LPS is liberated in small amounts by Gram - bacteria throughout their growth and division. Larger amounts can be liberated when the cell dies and undergoes lysis (bursting).
Some material copyright © Dr. R. E. Hurlbert, 1998.
This material may be used for educational purposes only and may not be duplicated for commercial purposes.
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