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Quantitative evaluation of the counterbalance between photosynthetic stimulation and depression caused by low partial pressure of O_2 and CO_ 2 in alpine atmospheres
https://nipr.repo.nii.ac.jp/records/10065
https://nipr.repo.nii.ac.jp/records/10065b6eb58fc-5366-404f-add0-1b5a9e64360c
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2014-10-15 | |||||
タイトル | ||||||
タイトル | Quantitative evaluation of the counterbalance between photosynthetic stimulation and depression caused by low partial pressure of O_2 and CO_ 2 in alpine atmospheres | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Quantitative evaluation of the counterbalance between photosynthetic stimulation and depression caused by low partial pressure of O_2 and CO_ 2 in alpine atmospheres | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Ribulose-1,5-bisphosphate carboxylase | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | oxygenase (Rubisco) | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Internal diffusion conductance (g_i) | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Atmospheric pressure | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Photosynthetic CO_2 use efficiency | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | A-C_i curves | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Ribulose-1,5-bisphosphate carboxylase | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | oxygenase (Rubisco) | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Internal diffusion conductance (g_i) | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Atmospheric pressure | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Photosynthetic CO_2 use efficiency | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | A-C_i curves | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Sakata, Tsuyoshi
× Sakata, Tsuyoshi× Kachi, Naoki× Yokoi, Yota× Sakata, Tsuyoshi× Kachi, Naoki× Yokoi, Yota |
|||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | To evaluate the effects of low atmospheric pressure on leaf photosynthesis, we compared the photosynthesis of identical leaves of Fagus crenata at lowland (0 m a.s.l.) and at highland (2360 m a.s.l.). At the high altitude, the atmospheric pressure and partial pressure of CO_2 at intercellular air spaces in the leaf (C_<i360>) decreased to 77% and 78% of those at the low altitude, respectively. On the other hand, the efficiency of photosynthetic CO_2-utilization was apparently higher at the high altitude because of a mitigation of the O_2-inhibition of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) under low ambient partial pressure of O_2. This stimulation of photosynthesis partly compensated a photosynthetic depression due to the low C_<i360>, and the net assimilation rate (A_<n360>) at the high altitude retained 94% of the value at the low altitude. A theoretical model indicated that the stimulation of photosynthesis at high altitudes depend on internal conductance (g_i) and/or on Rubisco content. The model demonstrated that low atmospheric pressure at high altitudes caused severe restrictions of photosynthesis when leaves had a small g_i and/or a large amount of Rubisco, whichever are repeatedly reported in alpine plants. | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | ブナの葉の光合成を標高0mと2360mの2地点で測定比較した結果、CO2分圧の低下は光合成の低下をもたらすが、O2分圧の低下は酸素によるRubisco活性の抑制を緩和する方向に働くことを示しています。 | |||||
書誌情報 |
Polar science en : Polar science 巻 1, 号 1, p. 55-62, 発行日 2007-08 |
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出版者 | ||||||
出版者 | 国立極地研究所 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 18739652 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA12240481 | |||||
論文ID(NAID) | ||||||
識別子タイプ | NAID | |||||
関連識別子 | 110006385874 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | http://doi.org/10.1016/j.polar.2007.02.001 | |||||
関連名称 | 10.1016/j.polar.2007.02.001 |