- The affinity of the lectins Ricinus communis and Glycine maxima to carbohydrates on the cell surface of various forms of Trypanosoma cruzi and Trypanosoma rangeli, and the application of these lectins for the identification of T. cruzi in the feces of Rhodnius prolixus. Marinkelle, C.J., Vallejo, G.A., Schottelius, J., Guhl, F., de Sanchez, N. Acta Trop. (1986)