{"created":"2023-07-25T11:06:37.930781+00:00","id":10099,"links":{},"metadata":{"_buckets":{"deposit":"e09a7a35-d870-41fd-b469-3d50ee4d0b3f"},"_deposit":{"created_by":17,"id":"10099","owners":[17],"pid":{"revision_id":0,"type":"depid","value":"10099"},"status":"published"},"_oai":{"id":"oai:nipr.repo.nii.ac.jp:00010099","sets":[]},"author_link":["18815","18809","18811","18810","18383","18814","18384","18812","18381","18386","18385","18813","18380","18382"],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2009-06","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicPageEnd":"72","bibliographicPageStart":"57","bibliographicVolumeNumber":"3","bibliographic_titles":[{"bibliographic_title":"Polar science"},{"bibliographic_title":"Polar science","bibliographic_titleLang":"en"}]}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Ice algae are the major primary producers in seasonally ice-covered oceans during the cold season. Diurnal change in solar radiation is inevitable for ice algae, even beneath seasonal sea ice in lower-latitude regions. In this work, we focused on the photosynthetic response of ice algae under diurnally changing irradiance in Saroma-ko Lagoon, Japan. Photosynthetic properties were assessed by pulse-amplitude modulation (PAM) fluorometry. The species composition remained almost the same throughout the investigation. The maximum electron transport rate (rETR_<max>), which indicates the capacity of photosynthetic electron transport, increased from sunrise until around noon and decreased toward sunset, with no sign of the afternoon depression commonly observed in other photosynthetic organisms. The level of non-photochemical quenching, which indicates photoprotection activity by dissipating excess light energy via thermal processes, changed with diurnal variations in irradiance. The pigment composition appeared constant, except for xanthophyll cycle pigments, which changed irrespective of irradiance. These results indicate that ice algae tune their photosynthetic system harmonically to achieve efficient photosynthesis under diurnally changing irradiance, while avoiding damage to photosystems. This regulation system may be essential for productive photosynthesis in ice algae.","subitem_description_type":"Abstract"}]},"item_10001_description_6":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"アイスアルジーは、季節海氷域における主要な一次生産者である。低緯度季節海氷域においては、海氷底部に於いても光の日周変化が起こる。本研究では、光環境の日周変化に対してサロマ湖のアイスアルジーの光合成機構がどのように応答しているかについて、非破壊的蛍光法（PAM）により解析した。その結果、最大電子伝達速度は正午頃に最大になり、明け方や夕方は低かった。また、強光阻害を回避する機能の活性を示す非光化学的消光の最大値も、同様の変化であった。これらのことから、光合成能が光強度の日周変化に合わせて協調的に調節されることが、低温・弱光下におけるアイスアルジーの効率的な光合成に本質的であると結論した。","subitem_description_type":"Other"}]},"item_10001_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"国立極地研究所"}]},"item_10001_relation_12":{"attribute_name":"論文ID（NAID）","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"110007121875","subitem_relation_type_select":"NAID"}}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"10.1016/j.polar.2008.12.001"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://doi.org/10.1016/j.polar.2008.12.001","subitem_relation_type_select":"DOI"}}]},"item_10001_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA12240481","subitem_source_identifier_type":"NCID"}]},"item_10001_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"18739652","subitem_source_identifier_type":"ISSN"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Aikawa, Shimpei"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Hattori, Hiroshi"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Gomi, Yasushi"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Watanabe, Kentaro"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kudoh, Sakae"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kashino, Yasuhiro"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Satoh, Kazuhiko"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Aikawa, Shimpei","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Hattori, Hiroshi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Gomi, Yasushi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Watanabe, Kentaro","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kudoh, Sakae","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kashino, Yasuhiro","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Satoh, Kazuhiko","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Ice algae","subitem_subject_scheme":"Other"},{"subitem_subject":"Diurnal change","subitem_subject_scheme":"Other"},{"subitem_subject":"Photosynthesis","subitem_subject_scheme":"Other"},{"subitem_subject":"Non-photochemical quenching","subitem_subject_scheme":"Other"},{"subitem_subject":"Saroma-ko Lagoon","subitem_subject_scheme":"Other"},{"subitem_subject":"Ice algae","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Diurnal change","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Photosynthesis","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Non-photochemical quenching","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Saroma-ko Lagoon","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Diel tuning of photosynthetic systems in ice algae at Saroma-ko Lagoon, Hokkaido, Japan","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Diel tuning of photosynthetic systems in ice algae at Saroma-ko Lagoon, Hokkaido, Japan"},{"subitem_title":"Diel tuning of photosynthetic systems in ice algae at Saroma-ko Lagoon, Hokkaido, Japan","subitem_title_language":"en"}]},"item_type_id":"10001","owner":"17","path":["1358"],"pubdate":{"attribute_name":"公開日","attribute_value":"2014-10-15"},"publish_date":"2014-10-15","publish_status":"0","recid":"10099","relation_version_is_last":true,"title":["Diel tuning of photosynthetic systems in ice algae at Saroma-ko Lagoon, Hokkaido, Japan"],"weko_creator_id":"17","weko_shared_id":-1},"updated":"2023-07-25T16:20:04.199622+00:00"}