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\u305d\u306e\u3068\u304d\u306e\u8449\u306e\u30ac\u30b9\u4ea4\u63db\u3068\u6c34\u30dd\u30c6\u30f3\u30b7\u30e3\u30eb\u3092\u6e2c\u5b9a\u3057NaCl\u8010\u6027\u306e\u9055\u3044\u3092\u691c\u8a0e\u3057\u305f\u3002\u5f97\u3089\u308c\u305f\u7d50\u679c\u306e\u8981\u7d04\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3042\u308b\u30021) \u5f90\u3005\u306bNaCl\u6fc3\u5ea6\u3092\u4e0a\u3052\u305f\u3068\u304d\u306e3\u6a39\u7a2e\u306e\u5149\u5408\u6210\u901f\u5ea6\u53ca\u3073\u6c17\u5b54\u4f1d\u5c0e\u5ea6\u306f, \u305d\u308c\u305e\u308c\u7570\u306a\u3063\u305fNaCl\u6fc3\u5ea6\u306b\u304a\u3044\u3066\u4f4e\u4e0b\u3057\u305f(\u56f31,2)\u3002\u307e\u305f, \u5149\u5408\u6210\u901f\u5ea6\u3068\u6c17\u5b54\u4f1d\u5c0e\u5ea6\u3068\u306e\u9593\u306b\u306f\u9ad8\u3044\u6b63\u306e\u76f8\u95a2\u95a2\u4fc2\u304c\u8a8d\u3081\u3089\u308c(\u56f33), \u6c17\u5b54\u306b\u3088\u308b\u652f\u914d\u304c\u5927\u304d\u3044\u3053\u3068\u304c\u660e\u3089\u304b\u3068\u306a\u3063\u305f\u3002\u51e6\u7406\u5f8c11\u9031\u76ee\u306e\u5149-\u5149\u5408\u6210\u66f2\u7dda\u306f, NaCl\u6fc3\u5ea6\u306e\u5909\u5316\u306b\u4f34\u30443\u6a39\u7a2e\u3068\u3082\u7570\u306a\u308b\u53cd\u5fdc\u3092\u793a\u3057\u305f(\u56f35,6)\u30022) \u6025\u6fc0\u306bNaCl\u51e6\u7406\u3092\u884c\u3063\u305f\u3068\u304d\u306e\u5149\u5408\u6210\u901f\u5ea6\u53ca\u3073\u6c17\u5b54\u4f1d\u5c0e\u5ea6\u3068\u8449\u306e\u6c34\u30dd\u30c6\u30f3\u30b7\u30e3\u30eb\u3068\u306e\u95a2\u4fc2\u304b\u3089(\u56f37,8,10), \u30e1\u30d2\u30eb\u30ae\u53ca\u3073\u30aa\u30d2\u30eb\u30ae\u3067\u306f\u5149\u5408\u6210\u901f\u5ea6\u306e\u6025\u901f\u306a\u4f4e\u4e0b\u304c\u307f\u3089\u308c\u305f\u304c, \u30e4\u30a8\u30e4\u30de\u30d2\u30eb\u30ae\u306f\u8449\u306e\u6c34\u30dd\u30c6\u30f3\u30b7\u30e3\u30eb\u304c-3.0MPa\u306b\u81f3\u308b\u307e\u3067\u4f4e\u4e0b\u3057\u306a\u304b\u3063\u305f(\u56f37)\u3002\u5149\u5408\u6210\u901f\u5ea6\u3068\u6c17\u5b54\u4f1d\u5c0e\u5ea6\u3068\u306e\u9593\u306b\u306f, \u5f90\u3005\u306b\u51e6\u7406\u3057\u305f\u5834\u5408\u3068\u540c\u69d8\u306b\u9ad8\u3044\u6b63\u306e\u76f8\u95a2\u95a2\u4fc2\u304c\u8a8d\u3081\u3089\u308c\u305f(\u56f39)\u30023) 3\u7a2e\u30d2\u30eb\u30ae\u306e\u8449\u306e\u6c34\u30dd\u30c6\u30f3\u30b7\u30e3\u30eb\u3068\u6c34\u5229\u7528\u52b9\u7387\u3068\u306e\u95a2\u4fc2\u3092\u691c\u8a0e\u3057\u305f\u3068\u3053\u308d, \u30e4\u30a8\u30e4\u30de\u30d2\u30eb\u30ae\u306f\u6c34\u30dd\u30c6\u30f3\u30b7\u30e3\u30eb\u306e\u4f4e\u4e0b\u306b\u3068\u3082\u306a\u3063\u3066\u6c34\u5229\u7528\u52b9\u7387\u304c\u4e0a\u6607\u3057\u305f(\u56f311)\u30024) \u8abf\u67fb\u3057\u305f3\u7a2e\u306e\u30d2\u30eb\u30ae\u306e\u6c17\u5b54\u5bc6\u5ea6\u306f100\u500b\u30fb(mm)^\u003c-2\u003e\u3067, CAM\u690d\u7269\u306b\u8fd1\u3044\u7279\u6027\u3092\u6709\u3057, \u6c17\u5b54\u306f\u8449\u306e\u88cf\u9762\u306b\u5206\u5e03\u3057\u3066\u3044\u305f(\u88682)\u3002\u4ee5\u4e0a\u3088\u308a, \u30e4\u30a8\u30e4\u30de\u30d2\u30eb\u30ae\u306f\u5927\u304d\u3044\u6c17\u5b54\u3092\u5c11\u306a\u304f\u6709\u3057, \u9ad8\u6fc3\u5ea6\u306eNaCl\u306b\u8010\u3048\u308b\u3053\u3068\u306e\u3067\u304d\u308b\u7d30\u80de\u30aa\u30eb\u30ac\u30cd\u30e9\u3092\u6301\u3064\u3053\u3068\u304c, \u9ad8NaCl\u6761\u4ef6\u4e0b\u3067\u306e\u751f\u80b2\u3092\u53ef\u80fd\u306b\u3057\u3066\u3044\u308b\u3068\u8003\u3048\u3089\u308c\u308b\u3002", "subitem_description_type": "Other"}, {"subitem_description": "To make clarify the responses of photosynthesis and leaf conductance to NaCl concentration in Okinawan mangroves, we measured the leaf gas exchange and leaf water potential under slow 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In addition, the water use efficiency in Yaeyamahirugi was uniquely increased with decreasing leaf water potential.", "subitem_description_type": "Other"}, {"subitem_description": "\u7d00\u8981\u8ad6\u6587", "subitem_description_type": "Other"}]}, "item_1617186643794": {"attribute_name": "Publisher", "attribute_value_mlt": [{"subitem_1522300295150": "ja", "subitem_1522300316516": "\u7409\u7403\u5927\u5b66\u8fb2\u5b66\u90e8"}]}, "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/20.500.12000/3741"}]}, "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": "\u7409\u7403\u5927\u5b66\u8fb2\u5b66\u90e8\u5b66\u8853\u5831\u544a"}, {"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": "42", "bibliographicPageEnd": "22", "bibliographicPageStart": "9"}]}, "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": "KJ00000161772.pdf", "future_date_message": "", "is_thumbnail": false, "mimetype": "", "size": 0, "url": {"objectType": "fulltext", "url": "https://u-ryukyu.repo.nii.ac.jp/record/2002770/files/KJ00000161772.pdf"}, "version_id": "359b9330-51b7-4ee1-a417-27666120054a"}]}, "item_title": "\u6c96\u7e04\u7523\u30de\u30f3\u30b0\u30ed\u30fc\u30d6\u306e\u8449\u306e\u5149\u5408\u6210\u901f\u5ea6\u53ca\u3073\u6c34\u30dd\u30c6\u30f3\u30b7\u30e3\u30eb\u306b\u53ca\u307c\u3059 NaCl \u6fc3\u5ea6\u306e\u5f71\u97ff(\u751f\u7269\u751f\u7523\u5b66\u79d1)", "item_type_id": "15", "owner": "1", "path": ["1642837919297", "1642838407312"], "permalink_uri": "http://hdl.handle.net/20.500.12000/3741", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2008-02-14"}, "publish_date": "2008-02-14", "publish_status": "0", "recid": "2002770", "relation": {}, "relation_version_is_last": true, "title": ["\u6c96\u7e04\u7523\u30de\u30f3\u30b0\u30ed\u30fc\u30d6\u306e\u8449\u306e\u5149\u5408\u6210\u901f\u5ea6\u53ca\u3073\u6c34\u30dd\u30c6\u30f3\u30b7\u30e3\u30eb\u306b\u53ca\u307c\u3059 NaCl \u6fc3\u5ea6\u306e\u5f71\u97ff(\u751f\u7269\u751f\u7523\u5b66\u79d1)"], "weko_shared_id": -1}
  1. 紀要論文
  2. 琉球大学農学部学術報告
  3. 42号
  1. 部局別インデックス
  2. 農学部

沖縄産マングローブの葉の光合成速度及び水ポテンシャルに及ぼす NaCl 濃度の影響(生物生産学科)

http://hdl.handle.net/20.500.12000/3741
http://hdl.handle.net/20.500.12000/3741
b803114f-5f2b-49c3-93c4-41794311e09e
名前 / ファイル ライセンス アクション
KJ00000161772.pdf KJ00000161772.pdf
Item type デフォルトアイテムタイプ(フル)(1)
公開日 2008-02-14
タイトル
タイトル 沖縄産マングローブの葉の光合成速度及び水ポテンシャルに及ぼす NaCl 濃度の影響(生物生産学科)
言語 ja
作成者 川満, 芳信

× 川満, 芳信

ja 川満, 芳信

北原, 良太

× 北原, 良太

ja 北原, 良太

野瀬, 昭博

× 野瀬, 昭博

ja 野瀬, 昭博

Kawamitsu, Yoshinobu

× Kawamitsu, Yoshinobu

en Kawamitsu, Yoshinobu

Kitahara, Ryota

× Kitahara, Ryota

en Kitahara, Ryota

Nose, Akihiro

× Nose, Akihiro

en Nose, Akihiro

アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
主題
言語 ja
主題Scheme Other
主題 光合成速度
言語 ja
主題Scheme Other
主題 気孔伝導度
言語 ja
主題Scheme Other
主題 水ポテンシャル
言語 ja
主題Scheme Other
主題 マングローブ
言語 ja
主題Scheme Other
主題 オヒルギ
言語 ja
主題Scheme Other
主題 メヒルギ
言語 ja
主題Scheme Other
主題 ヤエヤマヒルギ
内容記述
内容記述タイプ Other
内容記述 高濃度の根系NaCl条件下で生育する3種ヒルギを用いて, 徐々にNaCl濃度を上げた場合と, 急激上げた場合の処理を行い, そのときの葉のガス交換と水ポテンシャルを測定しNaCl耐性の違いを検討した。得られた結果の要約は以下の通りである。1) 徐々にNaCl濃度を上げたときの3樹種の光合成速度及び気孔伝導度は, それぞれ異なったNaCl濃度において低下した(図1,2)。また, 光合成速度と気孔伝導度との間には高い正の相関関係が認められ(図3), 気孔による支配が大きいことが明らかとなった。処理後11週目の光-光合成曲線は, NaCl濃度の変化に伴い3樹種とも異なる反応を示した(図5,6)。2) 急激にNaCl処理を行ったときの光合成速度及び気孔伝導度と葉の水ポテンシャルとの関係から(図7,8,10), メヒルギ及びオヒルギでは光合成速度の急速な低下がみられたが, ヤエヤマヒルギは葉の水ポテンシャルが-3.0MPaに至るまで低下しなかった(図7)。光合成速度と気孔伝導度との間には, 徐々に処理した場合と同様に高い正の相関関係が認められた(図9)。3) 3種ヒルギの葉の水ポテンシャルと水利用効率との関係を検討したところ, ヤエヤマヒルギは水ポテンシャルの低下にともなって水利用効率が上昇した(図11)。4) 調査した3種のヒルギの気孔密度は100個・(mm)^<-2>で, CAM植物に近い特性を有し, 気孔は葉の裏面に分布していた(表2)。以上より, ヤエヤマヒルギは大きい気孔を少なく有し, 高濃度のNaClに耐えることのできる細胞オルガネラを持つことが, 高NaCl条件下での生育を可能にしていると考えられる。
内容記述タイプ Other
内容記述 To make clarify the responses of photosynthesis and leaf conductance to NaCl concentration in Okinawan mangroves, we measured the leaf gas exchange and leaf water potential under slow and acute stress conditions. Materials used were Mehirugi (Kandelia candel), Ohirugi (Bruguiera gymnorrhiza), and Yaeyamahirugi (Rhyizophora stylosa). The results obtained are summarized as follows; Photosynthesis and leaf conductance in three mangroves were decreased with increases in NaCl concentration. However, the decreasing rate with time was different in species. Yaeyamahirugi exhibited slight changes in photosynthesis, in other words, maintained the high photosynthetic rate even under severe stress conditions. Photosynthesis in Mehirugi was decreased pronouncedly as compared with other species. Ohirugi had a intermediate responsiveness to NaCl concentration. When leaf water potential was decreased by increasing NaCl concentration in root medium, photosynthesis in Mehirugi and Ohirugi was decreased. On the other hand, photosynthesis of Yaeyamahirugi was not changed with lowing leaf water potential. In addition, the water use efficiency in Yaeyamahirugi was uniquely increased with decreasing leaf water potential.
内容記述タイプ Other
内容記述 紀要論文
出版者
言語 ja
出版者 琉球大学農学部
言語
言語 jpn
資源タイプ
資源タイプ departmental bulletin paper
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
識別子
識別子 http://hdl.handle.net/20.500.12000/3741
識別子タイプ HDL
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 0370-4246
収録物識別子タイプ NCID
収録物識別子 AN00250548
収録物名
言語 ja
収録物名 琉球大学農学部学術報告
書誌情報
号 42, p. 9-22
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Ver.1 2022-01-27 02:38:17.982530
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エクスポート

OAI-PMH
  • OAI-PMH JPCOAR
  • OAI-PMH DublinCore
  • OAI-PMH DDI
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  • JSON

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