[Fixation of various lectins at the surface of Crithidia luciliae].

Suspensions of Crithidia luciliae have been treated with 30 lectins: protozoans are agglutinated only by lectins inhibited with oses of structures I an II according to Mäkelä, and by lectins the site of fixation of which are unknown. The use of 5 lectins conjugated to fluorescein corroborate that lectins in congruity with group I and II, contrarily to those of group III, fasten upon the membrane and the flagella of Crithidia luciliae.