This type of medium is both selective and differential. The MSA will select for organisms such as Staphylococcus species which can live in areas of high salt concentration (plate on the left in the ...
Studies in normal cells have shown that forced expression of oncogenic H-Ras can induce a senescence-like permanent growth arrest (Serrano et al., 1997; Lin et al., 1998; Lin and Lowe, 2001).