Gas exchanges of three co-occurring species of Cypripedium in a scrubland in the Hengduan Mountains
Zhang, SB; Hu, H; Xu, K; Li, ZR
2006
发表期刊PHOTOSYNTHETICA
ISSN0300-3604
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
学科领域Plant Sciences
收录类别SCI
语种英语
WOS研究方向Plant Sciences
WOS类目Plant Sciences
WOS记录号WOS:000237692200013
引用统计
被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/3184
专题资源植物与生物技术所级重点实验室
作者单位Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Peoples R China
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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.
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.
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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