Abstract
Interstrain polymorphisms of isoenzyme profiles and mitochondrial (Mt) DNA fingerprints were observed among seven strains of Acanthamoeba isolated from different sources and morphologically assigned to A. polyphaga. Mt DNA fingerprints by eight restriction endonucleases (Bgl II, Sca I, Cla I, EcoR I, Xba I, Kpn I, Sal I, and Sst I) revealed considerable interstrain polymorphisms. Isoenzyme profiles revealed considerable interstrain polymorphisms for acid phosphatase, lactate dehydrogenase, and glucose-6-phosphate dehydrogenase while those for glucose phosphate isomerase, leucine aminopeptidase, and malate dehydrogenase showed similarity. Despite of the interstrain polymorphisms, the isoenzyme profiles and Mt DNA fingerprints of the strain Ap were found to be identical with those of the strain Jones.
Mt DNA fingerprinting was found to be highly applicable for the strain identification, characterization, and differentiation.
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