@inproceedings{oai:jaxa.repo.nii.ac.jp:00013312, author = {三枝, 誠行 and 西平, 直美 and 進藤, 明彦 and 藤井, 暁子 and 南, 慶典 and 中野, 弘子 and 廣澤, 美樹 and 森, 嘉久 and 財部, 健一 and 小野, 文久 and 松島, 康 and 山下, 雅道 and Saigusa, Masayuki and Nishihira, Naomi and Shindo, Akihiko and Fujii, Akiko and Minami, Keisuke and Nakano, Hiroko and Hirosawa, Miki and Mori, Yoshihisa and Takarabe, Kenichi and Ono, Fumihisa and Matsushima, Yasushi and Yamashita, Masamichi}, book = {宇宙利用シンポジウム, Space Utilization Research: Proceedings of Space Utilization Symposium}, month = {Mar}, note = {第25回宇宙利用シンポジウム(2009年1月14日-15日, 宇宙航空研究開発機構宇宙科学研究本部相模原キャンパス), The Twenty-fifth Space Utilization Symposium (January 14-15, 2009: ISAS/JAXA Sagamihara, Japan), Life on the earth often could survive under extreme environmental conditions. To determine their limit of their resistibility, a tardigrade (Milnesium tardigradum), pores and leaves of three kinds of moss, dormant sists of Artemia were exposed to three kinds of extreme conditions: vacuum (1 x 10(exp -3) Pa), nitrogen-exchanged air (1 Pa; > 99.5 %), and ultrahigh pressure (7.5 GPa). The ratio of budding in moss spores and survival ratio of moss leaves exposed to vacuum and nitrogen-exchanged air for 1 year was not different from that of the control groups exposed to the air even for 1 year. Twenty (20) % of spores survived against ultrahigh pressure (exposed for 12 hrs). Moss spores and leaves and dormant sists of Artemia showed stronger resisitivility against these extreme conditions than the 'tun' of Milnesium tardigradum. These animals may be a very good material to test the resistivity of the life on earth against extreme environmental conditions in space., 形態: カラー図版あり, 資料番号: AA0064297068}, publisher = {宇宙航空研究開発機構宇宙科学研究本部, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)}, title = {コケ類胞子と茎葉体,およびアルテミア卵の極限環境耐性: クマムシの実験も含めて}, volume = {25}, year = {2009} }