{"created":"2023-06-20T14:45:44.408549+00:00","id":13216,"links":{},"metadata":{"_buckets":{"deposit":"09911d4b-1a28-472c-b447-d8804e4b022c"},"_deposit":{"created_by":1,"id":"13216","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"13216"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00013216","sets":["1543:1633:1641","1887:1891"]},"author_link":["119252","119249","119254","119250","119248","119255","119251","119253"],"item_5_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Effects of Depth and Cell Density on Bioconvection Pattern Formation and Transition in Suspensions of Chlamydomonas reinhardtii"}]},"item_5_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2010-02","bibliographicIssueDateType":"Issued"},"bibliographicVolumeNumber":"26","bibliographic_titles":[{"bibliographic_title":"宇宙利用シンポジウム"},{"bibliographic_title":"Space Utilization Research: Proceedings of Space Utilization Symposium","bibliographic_titleLang":"en"}]}]},"item_5_description_14":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）","attribute_value_mlt":[{"subitem_description":"第26回宇宙利用シンポジウム(2010年1月25日-26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)","subitem_description_type":"Other"}]},"item_5_description_15":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）（英）","attribute_value_mlt":[{"subitem_description":"The Twenty-sixth Space Utilization Symposium (January 25-26, 2010: ISAS/JAXA Sagamihara, Japan)","subitem_description_type":"Other"}]},"item_5_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"Bioconvection occurring in suspensions of the negatively-gravitactic unicellular protists can contribute to gravitational biology and future space research as an experimental tool for clarifying the possibility that gravity allows the emergence of novel properties of biological systems through collective interactions between the individual components. Although the suspension depth and the cell density are basic parameters for bioconvective pattern formation, the investigations of bioconvection of the flagellate Chlamydomonas have not so far fully described the effects of these parameters on the pattern transition phenomenon, i.e., a spontaneous and sudden decrease in pattern size of the steady-state bioconvection, which is peculiar to Chlamydomonas and has not been observed in other protists such as Tetrahymena. We study the depth- and the density-dependence of bioconvective behavior of Chlamydomonas reinhardtii, particularly of the pattern transition phenomenon. Striking differences in pattern size, morphology and stability were observed between the lower- (1 x 10(exp 6) cells/ml) and the higher-density (5 and 10 x 10(exp 6) cells/ml) suspensions. The effects of depth still remain unclear and further analyses are required. In the shallow, lower-density suspensions (2 mm; 1 x 10(exp 6) cells/ml), a peculiar, sometimes non-uniform \"pox\" pattern was repeatedly observed, which we had not seen previously. The \"pox\" broke down to form ripple-like fronts, and then the star-shaped patterns followed. Preliminary measurements showed little difference in the aggregation size between the \"pox\"  and the \"stars.\" This fact obliges us to reconsider what the pattern transition is: the essence might be the spontaneous breakdown and the subsequent reconstruction of the patterns, and not a mere decrease in pattern size.","subitem_description_type":"Other"}]},"item_5_description_18":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"共催: 日本学術会議","subitem_description_type":"Other"}]},"item_5_description_19":{"attribute_name":"内容記述（英）","attribute_value_mlt":[{"subitem_description":"joint hosting: The Science Council of Japan","subitem_description_type":"Other"}]},"item_5_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0064730069","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)"}]},"item_5_source_id_24":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN10324210","subitem_source_identifier_type":"NCID"}]},"item_5_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"お茶の水女子大学大学院人間文化創成科学研究科ライフサイエンス専攻生命科学コース"},{"subitem_text_value":"お茶の水女子大学理学部生物学科"},{"subitem_text_value":"お茶の水女子大学大学院人間文化創成科学研究科"},{"subitem_text_value":"お茶の水女子大学大学院人間文化創成科学研究科"}]},"item_5_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Graduate School of Humanities and Sciences, Ochanomizu University"},{"subitem_text_language":"en","subitem_text_value":"Department of Advanced Bioscience, Ochanomizu Univerisity"},{"subitem_text_language":"en","subitem_text_value":"Graduate School of Humanities and Sciences, Ochanomizu University"},{"subitem_text_language":"en","subitem_text_value":"Graduate School of Humanities and Sciences, Ochanomizu University"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"鹿毛, あずさ"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"細谷, 千春"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"馬場, 昭次"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"最上, 善広"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kage, Azusa","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Hosoya, Chiharu","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Baba, Shoji A.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Mogami, Yoshihiro","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":"64730069.pdf","filesize":[{"value":"810.6 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"64730069.pdf","url":"https://jaxa.repo.nii.ac.jp/record/13216/files/64730069.pdf"},"version_id":"6bbf8dc8-97ec-4dea-ac11-ed29df460fa6"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"bioconvection, Chlamydomonas, pattern formation, phase transition","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 paper","resourceuri":"http://purl.org/coar/resource_type/c_5794"}]},"item_title":"クラミドモナスの生物対流パターンの形成および遷移に対する深さと細胞密度の影響","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"クラミドモナスの生物対流パターンの形成および遷移に対する深さと細胞密度の影響"}]},"item_type_id":"5","owner":"1","path":["1641","1891"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"13216","relation_version_is_last":true,"title":["クラミドモナスの生物対流パターンの形成および遷移に対する深さと細胞密度の影響"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T06:02:38.431951+00:00"}