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Biochemical Characterization of Trypanosoma Spp. by Isozyme Electrophoresis
Richard D. Kreutzer
Richard D. Kreutzer
Gorgas Memorial Laboratory, Apartado 6991, Panama 5, Republic of Panama
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Octavio E. Sousa
Octavio E. Sousa
Gorgas Memorial Laboratory, Apartado 6991, Panama 5, Republic of Panama
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Isozyme patterns of 13 enzymes were compared for cultures of Trypanosoma avium, T. vespertilionis, T. cruzi and T. rangeli. The isozyme separation was made by cellulose acetate electrophoresis. Each of the species had distinctly migrating isozyme bands for glutamate oxaloacetate transaminase (GOT), isocitrate dehydrogenase (ICD), malic enzyme (ME), 6-phosphogluconate dehydrogenase (6PGD), phosphoglucoisomerase (PGI), phosphoglucomutase (PGM), and malic dehydrogenase (MDH). For other enzymes, two or more species had identically migrating bands. In addition to these interspecific species differences, variability was observed among the strains of T. cruzi and T. rangeli. Among the T. cruzi strains, there were two different isozyme (possibly allozyme) types of the enzymes alanine aminotransferase (ALAT), fructokinase (FK), glucose-6-phosphate dehydrogenase (G6PDH), GOT, MDH and three types of ME. In the T. rangeli isolates two isozyme types for the enzymes ALAT, FK, G6PDH, GOT, ICD, and LDH, were observed. Among the eight strains of T. cruzi studied there were six isozyme types, and among the seven T. rangeli isolates there were four isozyme types. There was an indication that isozyme types were associated with geographical distribution.
Author Notes
Present address: Biological Sciences Department, Youngstown State University, Youngstown, Ohio 44555.
| Past two years | Past Year | Past 30 Days | |
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