Growth Regulation Mechanisms in Higher Plams under Microgravity Conditions-Changes in cell Wall Metabolism
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- Hoson Takayuki
- Faculty of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585
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- Kamisaka Seiichiro
- Faculty of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585
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- Wakabayashi Kazuyuki
- Faculty of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585
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- Soga Kouichi
- Faculty of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585
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- Tabuchi Akira
- Faculty of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585
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- Tokumoto Hayato
- Faculty of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585
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- Okamura Kuniko
- Faculty of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585
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- Nakamura Yukiko
- Faculty of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585
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- Mori Ryuji
- Faculty of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585
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- Tanimoto Eiichi
- Institute of Natural Sciences, Nagoya City University, Mizuho-cho, Mizuho-ku, Nagoya 467-8501
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- Takeba Go
- Faculty of Human Environment, Kyoto Prefectural University, Shimogamo, Sakyo-ku, Kyoto 606-8522
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- Nishitani Kazuhiko
- Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578
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- Izumi Ryutaro
- Space Utilization Research Center, National Space Development Agency, Sengen, Tsukuba 305-8505
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- Ishioka Noriaki
- Space Utilization Research Center, National Space Development Agency, Sengen, Tsukuba 305-8505
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- Kamigaichi Shigeki
- Space Utilization Research Center, National Space Development Agency, Sengen, Tsukuba 305-8505
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- Aizawa Sachiko
- Space Utilization Research Center, National Space Development Agency, Sengen, Tsukuba 305-8505
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- Yoshizaki Izumi
- Space Utilization Research Center, National Space Development Agency, Sengen, Tsukuba 305-8505
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- Shimazu Toru
- Japan Space Forum, Hamamatsu-cho, Minato-ku, Tokyo 105-0013
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- Fukui Keiji
- Japan Space Forum, Hamamatsu-cho, Minato-ku, Tokyo 105-0013
書誌事項
- タイトル別名
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- Growth Regulation Mechanisms in Higher Plants under Microgravity Conditions. Changes in Cell Wall Metabolism.
- Changes in Cell Wall Metabolism
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抄録
During Space Shuttle STS-95 mission, we cultivated seedlings of rice (Oryza sativa L. cv. Koshihikari and cv. Tan-ginbozu) and Arabidopsis (Arabidopsis thaliana L. cv. Columbia and cv. etr1-1) for 68.5, 91.5, and 136 hr on board, and then analyzed changes in the nature of their cell walls, growth, and morphogenesis under microgravity conditions. In space, elongation growth of both rice coleoptiles and Arabidopsis hypocotyls was stimulated. Also, the increase in the cell wall extensibility, especially that in the irreversible extensibility, was observed for such materials. The analyses of the amounts, the structure, and the physicochemical properties of the cell wall constituents indicated that the decreases in levels and molecular masses of cell wall polysaccharides were induced under microgravity conditions, which appeared to contribute to the increase in the wall extensibility. The activity of certain wall enzymes responsible for the metabolic turnover of the wall polysaccharides was increased in space. By the space flight, we also confirmed the occurrence of automorphogenesis of both seedlings under microgravity conditions; rice coleoptiles showed an adaxial bending, whereas Arabidopsis hypocotyls elongated in random directions. Furthermore, it was shown that spontaneous curvatures of rice coleoptiles in space were brought about uneven modifications of cell wall properties between the convex and the concave sides.
収録刊行物
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- Biological Sciences in Space
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Biological Sciences in Space 14 (2), 75-96, 2000
日本宇宙生物科学会
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詳細情報 詳細情報について
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- CRID
- 1390282679409023360
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- NII論文ID
- 10004491531
- 130004450458
- 30016942089
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- NII書誌ID
- AN10164806
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- COI
- 1:STN:280:DC%2BD3Mnmt1Sisw%3D%3D
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- ISSN
- 1349967X
- 09149201
- http://id.crossref.org/issn/09149201
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- NDL書誌ID
- 5436085
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- PubMed
- 11543424
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- IRDB
- NDL
- Crossref
- PubMed
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可