@inproceedings{oai:jaxa.repo.nii.ac.jp:00013117,
 author = {宮沢, 豊 and 冨田, 優太 and 藤井, 伸治 and 高橋, 秀幸 and 阿部, 清美 and Miyazawa, Yutaka and Tomita, Yuuta and Fujii, Nobuharu and Takahashi, Hideyuki and Abe, Kiyomi},
 book = {宇宙利用シンポジウム: 第27回: 平成22年度, Space Utilization Research, Vol. 27 2011: Proceedings of The Twenty-seventh Space Utilization Symposium},
 month = {Mar},
 note = {第27回宇宙利用シンポジウム (2011年1月24日-25日, 宇宙航空研究開発機構宇宙科学研究所相模原キャンパス), 相模原市, 神奈川県, The Twenty-seventh Space Utilization Symposium (January 24-25, 2011. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)), Sagamihara, Kanagawa Japan, Circumnutation is a helical growth movement of tips of shoots and roots observed among various plant species. Circumnutation is considered to help plant organs find suitable environmental cues. Using agravitropic mutants, we have revealed that graviresponse is necessary for circumnutation in dicotyledonous plants such as Arabidopsis and morning glory. However, its mechanism in monocotyledonous plants is currently unknown. To investigate the relationship between graviresponsiveness and circumnutation in monocots, we used agravitropic mutant of rice, lazy1, and compared its circumnutation with that of wild-type. Coleoptile of wild-type rice exhibited obvious circumnutation when it was vigorously growing. On the other hand, the coleoptile of the lazy1 did not show obvious circumnutation despite the entire growth of coleoptile was similar to wild-type. These results suggest that circumnutation is closely related to gravitropic response. Furthermore, we found that treatment of an inhibitor of auxin efflux drastically reduced circumnutation in wild-type coleoptiles. Thus, it is suggested that circumnutation requires gravity-regulated auxin efflux in rice coleoptiles., 資料番号: AA0065129057},
 pages = {155--156},
 publisher = {宇宙航空研究開発機構宇宙科学研究所 (JAXA)(ISAS), Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)},
 title = {イネ子葉鞘における回旋転頭運動の重力依存性の解析},
 volume = {27},
 year = {2011}
}