{"created":"2023-07-25T11:06:41.391807+00:00","id":10166,"links":{},"metadata":{"_buckets":{"deposit":"a6500834-2637-4eb2-b920-c1f7a587301c"},"_deposit":{"created_by":17,"id":"10166","owners":[17],"pid":{"revision_id":0,"type":"depid","value":"10166"},"status":"published"},"_oai":{"id":"oai:nipr.repo.nii.ac.jp:00010166","sets":[]},"author_link":["19149","19144","19142","19140","19143","19141","19146","19145","19148","19147"],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2010-08","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicPageEnd":"227","bibliographicPageStart":"215","bibliographicVolumeNumber":"4","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":"Antarctic ice cores could preserve ancient airborne microorganisms. We examined bacteria in two Antarctic ice core samples, an interglacial age sample from Mizuho Base and a glacial age sample from the Yamato Mountains, by 16S rRNA gene sequencing analysis. Bacterial density, the number of bacterial OTUs and Simpson's diversity index was larger in the Mizuho sample than in the Yamato sample. The 16S rDNA clone library from the Mizuho sample was dominated by the phylum Firmicutes, while the large part of that from the Yamato sample was composed of the Gamma proteobacteria group. Major sources of these identified bacteria estimated from their database records also differed between the samples: in the Mizuho sample bacterial species recorded from animals were higher than that of the Yamato sample, while in the Yamato sample bacteria from aquatic and snow-ice environments were higher than that of the Mizuho sample. The results suggest that these bacteria were past airborne bacteria that would vary in density, diversity and species composition depending on global environmental change. Our results imply that bacteria in Antarctic ice cores could be used as new environmental markers for past environmental studies.","subitem_description_type":"Abstract"}]},"item_10001_description_6":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"南極アイスコア（氷期のヤマト山脈の氷試料と間氷期のミズホの氷試料）中に含まれるバクテリアの16S rRNA遺伝子解析による群集構造解析をおこなった。その結果，ミズホ試料ではFirmicutesが優占種であったが，氷期のヤマト試料ではGamma proteobacteriaが優占種であった。検出されたバクテリア種数とシンプソン多様性指数（１／D）は氷期のヤマト試料に比べ間氷期のミズホ試料の方が高い結果となった。本研究から，間氷期と氷期で検出されるバクテリアの種類や起源に大きな違いがあり，南極氷床アイスコア中バクテリアを古環境指標として利用できる可能性が示された。","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":"110007702204","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.2010.05.003"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://doi.org/10.1016/j.polar.2010.05.003","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":"T., Segawa"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"K., Ushida"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"H., Narita"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"H., Kanda"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"S., Kohshima"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"T., Segawa","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"K., Ushida","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"H., Narita","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"H., Kanda","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"S., Kohshima","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Ice core","subitem_subject_scheme":"Other"},{"subitem_subject":"Antarctica","subitem_subject_scheme":"Other"},{"subitem_subject":"Bacteria","subitem_subject_scheme":"Other"},{"subitem_subject":"Cold environment","subitem_subject_scheme":"Other"},{"subitem_subject":"Glacier","subitem_subject_scheme":"Other"},{"subitem_subject":"Ice core","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Antarctica","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Bacteria","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Cold environment","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Glacier","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":"Bacterial communities in two Antarctic ice cores analyzed by 16S rRNA gene sequencing analysis","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Bacterial communities in two Antarctic ice cores analyzed by 16S rRNA gene sequencing analysis"},{"subitem_title":"Bacterial communities in two Antarctic ice cores analyzed by 16S rRNA gene sequencing analysis","subitem_title_language":"en"}]},"item_type_id":"10001","owner":"17","path":["1355"],"pubdate":{"attribute_name":"公開日","attribute_value":"2014-10-16"},"publish_date":"2014-10-16","publish_status":"0","recid":"10166","relation_version_is_last":true,"title":["Bacterial communities in two Antarctic ice cores analyzed by 16S rRNA gene sequencing analysis"],"weko_creator_id":"17","weko_shared_id":-1},"updated":"2023-07-25T16:20:24.414559+00:00"}