Integrated Assessment of Long-term Cosmic Radiation Through Biological Responses of the Silkworm, Bombyx mori, in Space (RadSilk) examines the effects of radiation exposure in microgravity on silkworms.Principal Investigator(s)
Japan Aerospace Exploration Agency (JAXA), Tsukuba, , Japan
Japan Aerospace Exploration Agency (JAXA)Sponsoring Organization
Information PendingResearch Benefits
Information PendingISS Expedition Duration
October 2009 - March 2010Expeditions Assigned
21/22Previous ISS Missions
The silkworm eggs were investigated by the PI in STS-84
Eggs of silkworm Bombyx mori on the Earth in the customized egg cases. After the launch at 5 degrees C, the eggs are kept cooled in MELFI at 2 degrees C for diapause. A day before recovery STS docking, eggs are incubated using CBEF at 20 degrees C for 8 days, then stored in MELFI at +2 degrees C and -95 degrees C, then recovered at +5 degrees C and at -20 degrees C. One control egg case are kept at 2 degrees C without incubation. After recovery, eggs are germinated and analyzed for radiation effects with mutation assay, genetic assay and biochemical assays.
Information PendingEarth Applications
Radiation effects are critical for biological creatures. The data collected during this investigation may lead a greater understanding of how the radiation defense system is affected by different factors from space radiation and microgravity environment. This data could potentially be used to help develop new treatments and preventative measures for radiation effects.
Information PendingOperational Protocols