| Gas exchanges of three co-occurring species of Cypripedium in a scrubland in the Hengduan Mountains |
| Zhang, SB ; Hu, H; Xu, K; Li, ZR
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| 通讯作者 | huhong@mail.kib.ac.cn
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| 2006
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| 发表期刊 | PHOTOSYNTHETICA
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| ISSN | 0300-3604
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| 卷号 | 44期号:2页码:241-247 |
| 摘要 | Gas exchanges and related leaf traits of three co-occurring species of genus Cypripedium (C. yunnanense Franch., C. guttatum SW., and C. flavum P.F. Hunt et Summerch.) were investigated in a scrubland at 3 460 in a.s.l. in the Hengduan Mountains. The considered species had similar photosynthetic responses to photosynthetic photon flux density (PPFD) and air temperature. The photosynthetic capacity (P-max), carboxylation efficiency (CE), apparent quantum efficiency (AQE), PPFD-saturated rate of electron transport (J(max)), respiration rate (R-D), and leaf nitrogen content per unit area (LNC) of C. guttatum were higher than those of C. yunnanense and C. flavum. The highest P-max of C. guttatum was related to the highest LNC and the lowest ratio of intercellular CO2 concentration to atmospheric CO2 concentration (C-i/C-a). However, no significant differences in stomatal conductance (g(s)) and relative stomatal limitations (RSL) were observed among the three species. Hence biochemical limitation had a dominant role in P-max differences among the considered species. |
| 关键词 | Alpine Environment
Apparent Quantum Efficiency
Carboxylation Efficiency
Co2 Concentration
Conservation
Leaf Nitrogen Content
Respiration Rate
Stomatal Conductance
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| 学科领域 | Plant Sciences
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| 收录类别 | SCI
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| 语种 | 英语
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| WOS记录号 | WOS:000237692200013
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.kib.ac.cn/handle/151853/3184
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| 专题 | 资源植物与生物技术所级重点实验室
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| 作者单位 | Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Peoples R China
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推荐引用方式
GB/T 7714 |
Zhang, SB,Hu, H,Xu, K,et al. Gas exchanges of three co-occurring species of Cypripedium in a scrubland in the Hengduan Mountains[J]. PHOTOSYNTHETICA,2006,44(2):241-247.
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| APA |
Zhang, SB,Hu, H,Xu, K,&Li, ZR.(2006).Gas exchanges of three co-occurring species of Cypripedium in a scrubland in the Hengduan Mountains.PHOTOSYNTHETICA,44(2),241-247.
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| MLA |
Zhang, SB,et al."Gas exchanges of three co-occurring species of Cypripedium in a scrubland in the Hengduan Mountains".PHOTOSYNTHETICA 44.2(2006):241-247.
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