Nematophagous fungi: Protascus and its relationship to Myzocytium

Abstract

Evidence is presented to support the transfer of Protascus subuliformis to Myzocytium. Based on the nature of the sporangiospores and the method of attacking the host, the known species of Myzocytium parasitic on nematodes are divided into five series. The major characteristics and possible biological advantages of each of these series are outlined. A key to the species of nematophagous Myzocytium species is included.