A Study of Protein Fractional Composition during Incubation of Diphyllobothrium dendriticum (Cestoda) Plerocercoids in a Medium Containing Blood Serum of the Host, the Baikal Omul Coregonus migratorius (Coregonidae)

The change in the composition of the protein fraction of Diphyllobothrium dendriticum (Cestoda) plerocercoids during incubation in a medium containing blood serum of their host—the Baikal omul Coregonus migratorius (Coregonidae)—was investigated. The change in the composition of the protein fraction of the incubation medium also was studied. On the one hand, the appearance of new high-molecular fractions with a molecular weight (MW) of 193 kDa after 3, 12, and 24 h of incubation and 88 kDa after 24 h was detected, which was associated at plerocercoids with the appearance of a new 189 kDa fraction after 12 h and the disappearance of the 80 kDa fraction. On the other hand, a decrease or the disappearance of two low-molecular fractions 57 and 42 kDa in the incubation medium after 3, 12, and 24 h of incubation were observed.