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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

A polymerase chain reaction based method for detecting Mycoplasma/Acholeplasma contaminants in cell culture.

A detection system that utilizes a primer mixture in a nested polymerase chain reaction for detecting Mycoplasma contaminants in cell cultures is described. Primers were designed to amplify the spacer regions between the 16S and 23S ribosomal RNA genes of Mycoplasma and Acholeplasma. This detection system was able to detect 20-180 colony forming units per milliliter of sample. Eight commonly encountered Mycoplasma and Acholeplasma contaminants, which include Mycoplasma (M.) arginini, M. fermentans, M. hominis, M. hyorhinis, M. orale, M. pirum, M. salivarium, and Acholeplasma laidlawii, were consistently amplified. Mycoplasma contaminants generated a single DNA band of 236-365 base pairs (bp), whereas A. laidlawii produced a characteristic two-band pattern of 426 and 219 bp amplicons. Species identification could be achieved by size determination and restriction enzyme digestion. Minor cross-reactions were noted with a few closely related gram positive bacteria and DNA from rat cell lines. A Mycoplasma Detection Kit for detecting Mycoplasma contaminants in cell cultures has been developed based on this approach.[1]


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