{"_buckets": {"deposit": "4f01a39f-96ce-41f4-ad2a-803441809814"}, "_deposit": {"id": "2002672", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "2002672"}, "status": "published"}, "_oai": {"id": "oai:u-ryukyu.repo.nii.ac.jp:02002672", "sets": ["1642837921834", "1642838407312"]}, "author_link": [], "item_1617186331708": {"attribute_name": "Title", "attribute_value_mlt": [{"subitem_1551255647225": "連続明期と温度変化がパインアップルの CO_2 交換速度及び気孔伝導度の日変化に与える影響", "subitem_1551255648112": "ja"}, {"subitem_1551255647225": "The effect of continued light period and temperature changes on the diurnal changes in CO_2 exchange rate and stomatal conductance in pineapple.", "subitem_1551255648112": "en"}]}, "item_1617186419668": {"attribute_name": "Creator", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "川満, 芳信", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "大城, 常明", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "村山, 盛一", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "Kawamitsu, Yoshinobu", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Oshiro, Tsuneaki", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Murayama, Seiichi", "creatorNameLang": "en"}]}]}, "item_1617186476635": {"attribute_name": "Access Rights", "attribute_value_mlt": [{"subitem_1522299639480": "open access", "subitem_1600958577026": "http://purl.org/coar/access_right/c_abf2"}]}, "item_1617186609386": {"attribute_name": "Subject", "attribute_value_mlt": [{"subitem_1522299896455": "ja", "subitem_1522300014469": "Other", "subitem_1523261968819": "CAM 植物"}, {"subitem_1522299896455": "ja", "subitem_1522300014469": "Other", "subitem_1523261968819": "パインアップル"}, {"subitem_1522299896455": "ja", "subitem_1522300014469": "Other", "subitem_1523261968819": "リンゴ酸"}, {"subitem_1522299896455": "ja", "subitem_1522300014469": "Other", "subitem_1523261968819": "連続明期"}, {"subitem_1522299896455": "ja", "subitem_1522300014469": "Other", "subitem_1523261968819": "気孔伝導度"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "Crassulacean acid metabolism"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "Pineapple"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "Malic acid"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "Continued light period"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "Stomatal conductance"}]}, "item_1617186626617": {"attribute_name": "Description", "attribute_value_mlt": [{"subitem_description": "CAM植物は, 炭素固定能力が低く, また, 1日のCO_2収支量は暗期に蓄積されるリンゴ酸含量に依存し, 太陽エネルギー利用効率は低い。本報では, パインアップルを明期に開孔させ光エネルギー利用効率を高めるため, 暗期の有無や温度変化を制御して検討した。結果の概要は以下の通りである。1) 通常の日長条件下では, ガス交換速度は温度の変化に関係なく, 4つのPhaseを有する典型的なCAM型を示した。連続明期条件下に曝した場合, ガス交換速度および気孔伝導度は日変化を維持した。明期と暗期で温度変化を与えた場合, リンゴ酸含量は低下した。2) 暗期のある条件下での明期暗期温度差はガス交換速度の日変化やCO_2収支量に影響を与えた。また, リンゴ酸含量の蓄積や脱炭酸過程に温度は影響を与えた。3) 気孔伝導度とガス交換速度との関係をプロットしたところ, Phase 1とPhase 4でそれぞれ傾きの異なる回帰直線が得られた。回帰直線の傾きはCO_2固定酵素の違いを反映し, 連続明期下におけるCO_2固定酵素の特定が可能であった。以上より, 気孔は暗期の存在, 温度変化によって影響を受け, また, リンゴ酸の増減によってコントロールされていると考えられ, 明期に気孔を開かせる条件として明期暗期の温度差が無くリンゴ酸の蓄積を抑制する方法で達成できると予想される。", "subitem_description_type": "Other"}, {"subitem_description": "In CAM plants, CO_2 balance is dependent on malic acid content accumulated in the dark period, consequently the light use efficiency is low. In this paper, in order to increase the light use efficiency in pineapple plants, the diurnal changes in gas exchange parameters were examined under such conditions without dark period and of controlling temperature change. Outlines of the result are as follows; Under the control conditions, the diurnal courses in gas exchange rate showed CAM type with four phases regardless of the change of temperature. Under the continued light period, gas exchange rate and stomatal conductance showed daily variation when temperature change was given in the transient from light to dark period. In addition, the malic acid content was decreased when the temperature changed. Light and dark period temperature gradient under the normal conditions with the dark period affected the diurnal changes in gas exchange rate and CO_2 balance. Moreover, it was recognized that the temperature shift affected storage and decarboxylation process of the malic acid content. The slope of the regression line between stomatal conductance and gas exchange rate at Phase-1 and Phase-4 was significantly different, suggesting the difference in the CO_2 fixing enzymes. Base on the hypothesis, the enzyme under the continued light period could be speculated. From the present study, stomata is affected by the existence of dark period and temperature change, and it seems to be controlled by the increase and decrease of malic acid content.", "subitem_description_type": "Other"}, {"subitem_description": "紀要論文", "subitem_description_type": "Other"}]}, "item_1617186643794": {"attribute_name": "Publisher", "attribute_value_mlt": [{"subitem_1522300295150": "ja", "subitem_1522300316516": "琉球大学農学部"}]}, "item_1617186702042": {"attribute_name": "Language", "attribute_value_mlt": [{"subitem_1551255818386": "jpn"}]}, "item_1617186783814": {"attribute_name": "Identifier", "attribute_value_mlt": [{"subitem_identifier_type": "HDL", "subitem_identifier_uri": "http://hdl.handle.net/20.500.12000/3642"}]}, "item_1617186920753": {"attribute_name": "Source Identifier", "attribute_value_mlt": [{"subitem_1522646500366": "ISSN", "subitem_1522646572813": "0370-4246"}, {"subitem_1522646500366": "NCID", "subitem_1522646572813": "AN00250548"}]}, "item_1617186941041": {"attribute_name": "Source Title", "attribute_value_mlt": [{"subitem_1522650068558": "ja", "subitem_1522650091861": "琉球大学農学部学術報告"}, {"subitem_1522650068558": "en", "subitem_1522650091861": "The Science Bulletin of the Faculty of Agriculture. University of the Ryukyus"}]}, "item_1617187056579": {"attribute_name": "Bibliographic Information", "attribute_value_mlt": [{"bibliographicIssueNumber": "48", "bibliographicPageEnd": "52", "bibliographicPageStart": "39"}]}, "item_1617258105262": {"attribute_name": "Resource Type", "attribute_value_mlt": [{"resourcetype": "departmental bulletin paper", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_1617265215918": {"attribute_name": "Version Type", "attribute_value_mlt": [{"subitem_1522305645492": "VoR", "subitem_1600292170262": "http://purl.org/coar/version/c_970fb48d4fbd8a85"}]}, "item_1617605131499": {"attribute_name": "File", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_access", "download_preview_message": "", "file_order": 0, "filename": "KJ00000161916.pdf", "future_date_message": "", "is_thumbnail": false, "mimetype": "", "size": 0, "url": {"objectType": "fulltext", "url": "https://u-ryukyu.repo.nii.ac.jp/record/2002672/files/KJ00000161916.pdf"}, "version_id": "db5233c1-5b9d-4279-a564-3d94242e861f"}]}, "item_title": "連続明期と温度変化がパインアップルの CO_2 交換速度及び気孔伝導度の日変化に与える影響", "item_type_id": "15", "owner": "1", "path": ["1642837921834", "1642838407312"], "permalink_uri": "http://hdl.handle.net/20.500.12000/3642", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2008-02-14"}, "publish_date": "2008-02-14", "publish_status": "0", "recid": "2002672", "relation": {}, "relation_version_is_last": true, "title": ["連続明期と温度変化がパインアップルの CO_2 交換速度及び気孔伝導度の日変化に与える影響"], "weko_shared_id": -1}