There are currently seven species in this genus including the type species Acholeplasma phage MV-L51.
"Acholeplasma laidlawii " is a common contaminant of cell culture media products, and has also been used in extensive studies of lipid polymorphism because this organism alters its ratio of MGlcDG ( monoglucosyl diacylglycerol ) to DGlcDG ( diglucosyl diacylglycerol ) in response to growth conditions.