{"created":"2023-07-25T11:06:45.506204+00:00","id":10272,"links":{},"metadata":{"_buckets":{"deposit":"bb147040-7310-4f8b-91c1-d80635453c1a"},"_deposit":{"created_by":27,"id":"10272","owners":[27],"pid":{"revision_id":0,"type":"depid","value":"10272"},"status":"published"},"_oai":{"id":"oai:nipr.repo.nii.ac.jp:00010272","sets":[]},"author_link":["18215","476","7808","20356","20354","20355","17997","7805","7810","18642","15362","20001"],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2014-12","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"4","bibliographicPageEnd":"412","bibliographicPageStart":"397","bibliographicVolumeNumber":"8","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":"We used observational and experimental analyses to investigate the photosynthetic activity and water relationships of five lichen species attached to different substrates in a glacier foreland in the High Arctic, Ny-Ålesund, Svalbard (79°N) during the snow-free season in 2009 and 2010. After the rains ceased, lichens and their attached substrates quickly dried, whereas photosynthetic activity in the lichens decreased gradually. The in situ photosynthetic activity was estimated based on the relative electron transportation rate (rETR) in four fruticose lichens: Cetrariella delisei, Flavocetraria nivalis, Cladonia arbuscula ssp. mitis, and Cladonia pleurota. The rETR approached zero around noon, although the crustose lichen Ochrolechia frigida grown on biological soil crust (BSC) could acquire water from the BSC and retain its WC to perform positive photosynthesis. The light-rETR relationship curves of the five well-watered lichens were characterized into two types: shade-adapted with photoinhibition for the fruticose lichens, and light-adapted with no photoinhibition for O. frigida. The maximum rETR was expected to occur when they could acquire water from the surrounding air or from substrates during the desiccation period. Our results suggest that different species of Arctic lichens have different water availabilities due to their substrates and/or morphological characteristics, which affect their photosynthetic active periods during the summer.","subitem_description_type":"Abstract"}]},"item_10001_description_6":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"高緯度北極に生育する地衣類5種の光合成活動と水利用を、着生基物がもたらす水条件の違いに着目し、その実態を調査した。降雨停止より各種地衣体及び着生基物の含水比は早急に低下し、日中には樹枝状地衣4種の光合成は停止していたが、夜間から早朝の弱い光環境で、周期的に湿度飽和となる大気から水を獲得し光合成を行っていた。一方、最も湿潤な環境をつくるクラストに着生する固着地衣Ochrolechia frigidaは、着生基物と地衣体間に生じた水ポテンシャル差に沿って水が供給されることで、降雨停止後数日間は日中の強光下でも光合成を行っていた。吸水状態で測定された樹枝状地衣4種の光-光合成曲線には強光阻害が認められたのに対し、O. frigidaには明確な強光阻害が認められず、地衣種ごとは着生基物及び形態的特徴によって異なる水利用を行い、水を得た時の光条件下で光合成を行うに適した光合成応答性をもつことが示唆された。","subitem_description_type":"Other"}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"10.1016/j.polar.2014.09.003"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://doi.org/10.1016/j.polar.2014.09.003","subitem_relation_type_select":"DOI"}}]},"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":"Inoue, Takeshi "}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kudoh, Sakae"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Uchida, Masaki"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Tanabe, Yukiko "}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Inoue, Masakane "}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kanda, Hiroshi"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Inoue, Takeshi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kudoh, Sakae ","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Uchida, Masaki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Tanabe, Yukiko","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Inoue, Masakane","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kanda, Hiroshi","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"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":"Effects of substrate differences on water availability for Arctic lichens during the snow-free summers in the High Arctic glacier foreland","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Effects of substrate differences on water availability for Arctic lichens during the snow-free summers in the High Arctic glacier foreland"},{"subitem_title":"Effects of substrate differences on water availability for Arctic lichens during the snow-free summers in the High Arctic glacier foreland","subitem_title_language":"en"}]},"item_type_id":"10001","owner":"27","path":["1375"],"pubdate":{"attribute_name":"公開日","attribute_value":"2014-11-27"},"publish_date":"2014-11-27","publish_status":"0","recid":"10272","relation_version_is_last":true,"title":["Effects of substrate differences on water availability for Arctic lichens during the snow-free summers in the High Arctic glacier foreland"],"weko_creator_id":"27","weko_shared_id":27},"updated":"2023-07-25T16:22:19.370318+00:00"}