Mycoplasma salivarium

Mycoplasma salivarium is a species of bacteria in the genus Mycoplasma. This genus of bacteria lacks a cell wall around their cell membrane. Without a cell wall, they are unaffected by many common antibiotics such as penicillin or other beta-lactam antibiotics that target cell wall synthesis. Mycoplasma are the smallest bacterial cells yet discovered, can survive without oxygen and are typically about 0. 1  µm in diameter. Mycoplasma salivarium is found in the mouths of 97% of the healthy population, and is generally considered to be a commensal organism and part of the normal oral flora.