@inproceedings{oai:jaxa.repo.nii.ac.jp:00013253,
 author = {宮沢, 豊 and 岡本, 美貴 and 藤井, 伸治 and 高橋, 秀幸 and 石岡, 憲昭 and 山崎, 丘 and 鎌田, 源司 and 嶋津, 徹 and Miyazawa, Yutaka and Okamoto, Miki and Fujii, Nobuharu and Takahashi, Hideyuki and Ishioka, Noriaki and Yamazaki, Takashi and Kamada, Motoshi and Shimazu, Toru},
 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), When root are exposed a moisture gradient, roots sense the gradient and bend toward the higher water potential or moisture, which is so called root hydrotropism. Because root system is responsible for water acquisition, root hydrotropism is considered to be important for drought avoidance. Although the difficulty of separating hydrotropism from gravitropism on Earth prevented us from analyzing the genuine hydrotropism, our previous results suggested that root gravitropism interferes hydrotropism and that auxin plays an important role in both tropisms. Furthermore, in cucumber, both hydrotropism and gravitropism are found to be accompanied with asymmetric expressions of auxin-inducible genes. To reveal the role of auxin in root hydrotorpism, it is necessary to use microgravity condition for differentiating hydrotropism from gravitropism. We proposed to use the microgravity environment to separate hydrotropism from gravitropism and dissect respective mechanisms in cucumber roots, which has been approved as a forthcoming spaceflight experiment by International Space Life Science Working Group in 2004. In this presentation, our recent ground-based experiments for demonstration of cucumber root hydrotropism in space are described., 資料番号: AA0064297009},
 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 = {第5回ライフサイエンス国際公募宇宙実験選定テーマ「Hydro Tropi」の実施へ向けた実験系の調査},
 volume = {25},
 year = {2009}
}