Mutation frequency of Dictyostelium discoideum spores exposed to the space environment.
-
- Takahashi Akihisa
- Department of Biology, Nara Medical University, Kashihara, Nara 634,
-
- Ohnishi Ken
- Department of Biology, Nara Medical University, Kashihara, Nara 634,
-
- Fukui Mitsuyo
- Space Experiment Department, National Space Development Agency of Japan, Tsukuba, Ibaraki 305
-
- Nakano Tamotsu
- Space Experiment Department, National Space Development Agency of Japan, Tsukuba, Ibaraki 305
-
- Yamaguchi Katsumi
- Frontiers Joint Research Program Department, Japan Space Utilization Promotion Center, Nishiwaseda, Shinjuku-ku, Tokyo 169, Japan
-
- Nagaoka Shunji
- Space Experiment Department, National Space Development Agency of Japan, Tsukuba, Ibaraki 305
-
- Ohnishi Takeo
- Department of Biology, Nara Medical University, Kashihara, Nara 634,
Bibliographic Information
- Other Title
-
- Mutation frequency of Dictyostelium dis
Search this article
Abstract
Two strains of cellular slime mold Dictyostelium discoideum, a radiosensitive mutant and the parental wild-type strain, were used to investigate the effects of cosmic radiation on viability and mutation frequency at the spore stage for about 9 days in Space Shuttle of NASA. We measured little effect of space environment on viability and cell growth in the both strains as compared to ground controls. The mutation frequency of the flown spores were similar to that of ground control. These results suggest that there could be no effect of cosmic radiation, containing high linear energy transfer radiation at about 0.9 mSv/day as detected by real-time radiation monitoring device on the induction of mutation at the spore stage.
Journal
-
- Biological Sciences in Space
-
Biological Sciences in Space 11 (2), 81-86, 1997
Japanese Society for Biological Sciences in Space
- Tweet
Keywords
Details 詳細情報について
-
- CRID
- 1390282679408378240
-
- NII Article ID
- 130004450426
- 10002856595
-
- NII Book ID
- AN10164806
-
- COI
- 1:STN:280:DC%2BD3MnlvFWitw%3D%3D
-
- ISSN
- 1349967X
- 09149201
- http://id.crossref.org/issn/1349967X
- http://id.crossref.org/issn/09149201
-
- NDL BIB ID
- 4368747
-
- PubMed
- 11540547
-
- Text Lang
- en
-
- Data Source
-
- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
-
- Abstract License Flag
- Disallowed