ABSTRACT
Exoantigens (soluble antigens) from five isolates of Basidiobolus, an agent of entomophthoromycosis, were characterized using immunodiffusion and biochemical analysis. Rabbit antisera were prepared to soluble antigens of B. haptosporus and B. meristosporus isolates. It was shown that B. microsporus is antigenically different from the other tested isolates of Basidiobolus. The antigens ranged in molecular weight (MW) from 23,000 to 100,000, while the MW of the more specific antigens were from 100,000 to 200,000. Results from other biochemical analyses showed that the common Basidiobolus antigens were acid-, base-stable glycoproteins while the less common antigens were acid-, base-labile glycoproteins.