The isoenzyme characteristics of Trypanosoma evansi and Trypanosoma equiperdum isolated from domestic stocks in China.

Twelve stocks of Trypanosoma evansi and one of Trypanosoma equiperdum isolated from domestic animals in China were examined for 16 enzymes using cellulose acetate and thin-layer starch gel electrophoresis. Differences were seen between stocks in only two of the enzymes, MDH and ALAT. Three of the T. evansi stocks, isolated from buffalo, and the T. equiperdum stock had the unusual pattern MDH-3, while all the other Chinese stocks had the common MDH-1. Two other stocks of T. evansi and again the T. equiperdum, all from equines, showed a new pattern ALAT-14. Otherwise the Chinese stocks had the same enzyme profile as T. evansi from elsewhere.