{"created":"2023-06-20T14:45:59.297287+00:00","id":13489,"links":{},"metadata":{"_buckets":{"deposit":"b9b34d1e-5391-4c11-920c-b8619f85e6a6"},"_deposit":{"created_by":1,"id":"13489","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"13489"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00013489","sets":["1543:1633:1643","1887:1891"]},"author_link":["123046","123050","123045","123056","123047","123044","123055","123049","123051","123052","123054","123057","123053","123048"],"item_5_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Mechanisms of signal transformation and transduction in gravity resistance in plants"}]},"item_5_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2008-03","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"393","bibliographicPageStart":"390","bibliographic_titles":[{"bibliographic_title":"宇宙利用シンポジウム　第24回　平成19年度"},{"bibliographic_title":"Space Utilization Research: Proceedings of the Twenty-fourth Space Utilization Symposium","bibliographic_titleLang":"en"}]}]},"item_5_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"Resistance to the gravitational force is a principal graviresponse in plants, comparable to gravitropism. Nevertheless, only limited information has been obtained for this graviresponse. The present study aims to clarify the mechanism of signal transformation and transduction processes, with reference to the roles of the plasma membrane and cortical microtubules. Under hypergravity conditions, the expression of genes encoding 3-Hydroxy-3-MethylGlutaryl-Coenzyme A Reductase (HMGR) was up-regulated, and the level of membrane sterols was kept higher, without influencing the level or composition of other membrane components. On the other hand, the expression of the majority of alpha- and beta-tubulin genes was up-regulated and the percentage of cells with longitudinal cortical microtubules was increased by hypergravity. Also, increases in the level and molecular size of anti-gravitational xyloglucans and 1, 3, 1, 4-beta-glucans by gravity were brought about by suppression of their breakdown with their constant or enhanced biosynthesis. We have further examined the role of membrane sterols and cortical microtubules in gravity resistance using Arabidopsis mutants. Elongation growth of both hmg and tubulin mutants was suppressed even under 1 g conditions, and hypergravity did not influence their growth, suggesting that the mutation made plants hypersensitive to the gravitational force. The analysis with mutants has also revealed that the signal transduction process via membrane sterols is distinct from that via cortical microtubules. These results indicate that membrane sterols (rafts) and cortical microtubules are deeply and independently involved in maintenance of normal growth capacity against the gravitational force.","subitem_description_type":"Other"}]},"item_5_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0063706113","subitem_description_type":"Other"}]},"item_5_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宇宙航空研究開発機構宇宙科学研究本部"}]},"item_5_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS)"}]},"item_5_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"大阪市立大学 大学院理学研究科"},{"subitem_text_value":"大阪市立大学 大学院理学研究科"},{"subitem_text_value":"北海道東海大学 工学部"},{"subitem_text_value":"横浜市立大学 木原生物学研究所"},{"subitem_text_value":"奈良先端科学技術大学院大学 バイオサイエンス研究科"},{"subitem_text_value":"兵庫県立大学 大学院生命理学研究科"},{"subitem_text_value":"埼玉大学 理学部"}]},"item_5_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Osaka City University Graduate School of Science"},{"subitem_text_language":"en","subitem_text_value":"Osaka City University Graduate School of Science"},{"subitem_text_language":"en","subitem_text_value":"Hokkaido Tokai University School of Engineering"},{"subitem_text_language":"en","subitem_text_value":"Yokohama City University Kihara Institute for Biological Research"},{"subitem_text_language":"en","subitem_text_value":"Nara Institute of Science and Technology Graduate School of Biological Sciences"},{"subitem_text_language":"en","subitem_text_value":"University of Hyogo Graduate School of Life Science"},{"subitem_text_language":"en","subitem_text_value":"Saitama University Faculty of Science"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"保尊, 隆享"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"曽我, 康一"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"榊, 剛"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"村中, 俊哉"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"橋本, 隆"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"園部, 誠司"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"小竹, 敬久"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Hoson, Takayuki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Soga, Koichi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Sakaki, Takeshi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Muranaka, Toshiya","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Hashimoto, Takashi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Sonobe, Seiji","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kotake, Toshihisa","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2020-01-20"}],"displaytype":"detail","filename":"63706113.pdf","filesize":[{"value":"949.0 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"63706113.pdf","url":"https://jaxa.repo.nii.ac.jp/record/13489/files/63706113.pdf"},"version_id":"3964fd83-0b90-42ed-9436-a6bd43b9bafb"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"植物","subitem_subject_scheme":"Other"},{"subitem_subject":"重力効果","subitem_subject_scheme":"Other"},{"subitem_subject":"遺伝子発現","subitem_subject_scheme":"Other"},{"subitem_subject":"高重力環境","subitem_subject_scheme":"Other"},{"subitem_subject":"重力","subitem_subject_scheme":"Other"},{"subitem_subject":"細胞膜","subitem_subject_scheme":"Other"},{"subitem_subject":"抗重力反応","subitem_subject_scheme":"Other"},{"subitem_subject":"膜ステロール","subitem_subject_scheme":"Other"},{"subitem_subject":"微小管","subitem_subject_scheme":"Other"},{"subitem_subject":"チューブリン","subitem_subject_scheme":"Other"},{"subitem_subject":"シロイヌナズナ","subitem_subject_scheme":"Other"},{"subitem_subject":"突然変異","subitem_subject_scheme":"Other"},{"subitem_subject":"成長","subitem_subject_scheme":"Other"},{"subitem_subject":"遺伝子","subitem_subject_scheme":"Other"},{"subitem_subject":"ポリメラーゼ連鎖反応","subitem_subject_scheme":"Other"},{"subitem_subject":"plant (botany)","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"gravitational effect","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"gene expression","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"high gravity environment","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"gravitation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"cell membrane","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"gravity resistance","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"membrane sterol","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"microtubule","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"tubulin","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Arabidopsis thaliana","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"mutation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"growth","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"gene","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"polymerase chain reaction","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"conference 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