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Fig. 1. Phagocytic activities (yeast phagocytosed per 100 coelomocytes) of
coelomocytes harvested from sea urchins at various times before and after the
injection of lipopolysaccharide (LPS) or artificial seawater (ASW). Arrows
show the days on which sea urchins were injected. Prior to phagocytosis, yeast
were incubated for 40 min in either ASW (non-opsonized) or coelomic fluid (CF;
opsonized) taken from the same sea urchin that donated coelomocytes.
Phagocytosis was allowed to proceed for 45 min.Values are means ±
S.E.M.(N
3).