Hokkaido University
Japan Aerospace Exploration Agency
Mitsubishi Heavy Industries Ltd.
出版者
宇宙航空研究開発機構宇宙科学研究本部
出版者（英）
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS)
雑誌名
宇宙利用シンポジウム 第24回 平成19年度
雑誌名(英)
Space Utilization Research: Proceedings of the Twenty-fourth Space Utilization Symposium
ページ
248 - 250
発行年
2008-03
抄録（英）
Because of many advantages, amphibians have been important experimental models in space utilization research. However, the results of previous space experiments with Xenopus laevis suggested that the larval growth was retarded or abnormal in the microgravity environment. It was supposed that Xenopus larvae could not recognize the air position in microgravity and failed to inflate their lungs in an appropriate manner during the critical period of lung development. In this study, ground-based experiments and parabolic flight experiments were made to form a stable air-water interface and keep its position for a while, and also to investigate whether Xenopus larvae can recognize the generated air-water interface by using an illumination as a cue, in microgravity achieved by parabolic flight. It was concluded that it will be possible to generate stable air-water interface even in the microgravity environment by using the 'air stabilizer', and Xenopus larvae will recognize the position of artificially formed water surface and breathe the air properly if they are illuminated from the same direction with the generated air-water interface.
両生類幼生は微小重力環境下で空気の位置を認識し呼吸できるか
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