Fig. 5. Identification of negatively charged surfaces using
FITC-poly-L-lysine. (A) Negatively charged CM Sepharose beads;
scale bar, 80 µm. (B) Negatively charged viable haemocytes (without
plasma); scale bar, 10 µm. (C) Himasthla sp. cyst under phase
contrast; scale bar, 100 µm. (D) Identical cyst showing negatively charged
cyst wall; scale bar, 100 µm.