Schematic representation of riboprinting patterns of Acanthamoeba strains, belonging to morphoolgical group I and III by Rsa I restriction enzyme. Lane 1, A. astronyxis Ray & Hayes; 2, A. tubiashi OC-15C; 3, A. culbertsoni A-1; 4, A. healyi OC-3A; 5, A. pustulosa GE-3a; 6, A. palestinensis Reich.