Fluorescent-Antibody Studies of Haplosporidian Parasites of Oysters in Chesapeake and Delaware Bays

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Science  23 Sep 1966:
Vol. 153, Issue 3743, pp. 1531-1533
DOI: 10.1126/science.153.3743.1531


A fluorescent antibody was produced against a plasmodial oyster parasite thought to be a haplosporidian, Minchinia nelsoni, which was termed MSX. The antibody reacted with this type of plasmodia from oysters, Crassostrea virginica ( Gmelin), from all sources, and it also reacted with its sporulating and spore stages. This reaction indicates cospecificity of the stages. No reaction occurred with any stage of another oyster haplosporidian, Minchinia costalis, indi- cating that the M. nelsoni and the M. costalis are antigenically distinct species.