CULTIVATION OF THE VIRUS OF GRASSERIE IN SILKWORM TISSUE CULTURES

Area of Science:

• * Cell Biology
• * Virology
• * Insect Pathology

Background:

• * Understanding silkworm viruses is crucial for agriculture and disease control.
• * Previous methods for studying silkworm grasserie virus were limited.
• * Tissue culture techniques offer a potential avenue for virus research.

Purpose of the Study:

• * To develop a suitable medium for maintaining silkworm gonadal cells in vitro.
• * To establish a method for propagating silkworm grasserie virus using tissue culture.
• * To investigate the replication and cytopathic effects of the virus in cultured cells.

Main Methods:

• * Development of a specialized cell culture medium.
• * Isolation and culture of female silkworm gonadal cells.
• * Inoculation of cell cultures with silkworm grasserie virus strains.
• * Serial passage of the virus in successive cell cultures.

Main Results:

• * Successfully cultured silkworm gonadal cells for 2-3 weeks.
• * Maintained silkworm grasserie virus through ten serial passages in vitro.
• * Observed significant viral multiplication and formation of characteristic polyhedral bodies within infected cells.

Conclusions:

• * The developed medium supports the long-term survival and multiplication of silkworm gonadal cells.
• * Tissue culture is an effective method for propagating and studying silkworm grasserie virus.
• * This technique facilitates further research into silkworm viral diseases and their mechanisms.