Fig. 2
Morphological changes in ultrastructure of Giardia exposed to crude extracts of Ageratum conyzoides (LW–P and FP): normal architecture of Giardia (a; arrow) and its flagella (b; arrow) compared with degenerated flagella and ventral discs (d: normal; arrow and degenerated: arrowhead); nucleolar changes (e; star); vacuolation (f-i; star); unusual shape (j; arrow); and chromatin loss (k; arrow) were observed