Polymerase Chain Reaction and Restriction Endonuclease Digestion for Selected Members of the “Mycoplasma Mycoides Cluster” and Mycoplasma Putrefaciens
1997
Rodriguez, Jose L. | Ermel, Richard W. | Kenny, Thomas P. | Brooks, Dale L. | DaMassa, Al J.
A specific diagnostic method using the polymerase chain reaction, together with restriction endonuclease digestion patterns, was developed for members of the “Mycoplasma mycoides cluster” that normally occur in the United States (i.e., Mycoplasma mycoides subsp. mycoides Large Colony and Mycoplasma capricolum subsp. capricolum in addition to “cluster” mycoplasma, bovine serogroup 7, and Mycoplasma putrefaciens. The digestion of “cluster” polymerase chain reaction DNA (1,225 bp) amplification products with restriction enzymes Asel and SspI gave mycoplasma species-specific patterns for all strains of M. mycoides subsp. mycoides Large Colony, M. capricolum subsp. capricolum, and bovine group 7 tested. Moreover, we found a nonspecific amplification product for M. putrefaciens that occurred with the oligonucleotide primers used for the “M. mycoides cluster” reaction. However, the restriction endonuclease digestion patterns observed with the restriction enzymes AluI, AseI, and SspI for M. putrefaciens were different than the digestion patterns obtained for the other “cluster” mycoplasmas. This report confirms the usefulness of polymerase chain reaction DNA amplification allied with restriction enzyme digestion profile analysis for the rapid and specific identification of mycoplasmas belonging to the “M. mycoides cluster” and M. putrefaciens.
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