Staphylococcus Aureus Research Paper

Staphylococcus aureus is responsible for various types of infections including skin and also respiratory tract infections. S.aureus can infect tissue when if the defensive line such as the skin or mucosal barriers had been breached. The infection caused by this bacteria can be spread in different modes such as direct contact from an infected wound, contact with the hyaluronidase, an enzyme produced by the bacteria that destroys tissues or even skin to skin contact with an infected person.
There are some difference in characteristics between Gram-positive and Gram negative bacteria, where one of most distinctive differences is that Gram-positive bacteria composes of a thick layer of peptidoglycan enveloping the plasma membrane, where as Gram-negative bacteria only have either a very thin or virtually do not exhibit the peptidoglycan layer. This trait of the Gram-positive bacteria causes them to be stained as purple color when washed with alcohol and water during Gram staining as the crystal violet dye will retain on the peptidoglycan layer, one the other hand the Gram-negative bacteria can be …show more content…
A five amino acid oligopeptide is attached to the N-acetymuramic acid, which can be cross-linked to another peptide chain of another N-acetylmuramic acid, which give rise to the formation of the #D mesh-like characteristic of the peptidoglycan layer (Ent F and Amos LA. 2001). Peptidoglycan plays an important role in the bacteria by providing mechanical support and structural strength to the cell wall. The peptidoglycan layer is also responsible for the cytoplasmic osmotic pressure counter action. It is also suggested by Salton MRJ and Kim KS that, peptidoglycan is also involved bacterial cell reproduction process such as in the binary