Plasticity in photosynthesis and functional leaf traits of Meconopsis horridula var. racemosa in response to growth irradiance
Zhang, Shi-Bao1,2; Yin, Lu-Xi3
2012-07-01
发表期刊BOTANICAL STUDIES
ISSN1817-406X
卷号53期号:3页码:335-343
摘要Meconopsis horridula var. racemosa, a valuable horticultural and medicinal plant, grows in the high mountains of the Himalayas under a range of light intensities, from bright illumination on the screes to low light in the understory of shrubs. To understand how this species adapts to these various environments, we examined the relative significance of leaf traits and physiology on photosynthetic light acclimation. Compared with plants exposed to low growth irradiance, those under greater irradiance exhibited a higher photosynthetic rate, leaf nitrogen content per unit area (N-a), leaf dry mass per unit area (LMA), chlorophyll a/b ratio and CO2 diffusion conductance. However, photosynthetic nitrogen-use efficiency and leaf N content per unit mass remained relatively constant regardless of light regime. This change in photosynthetic rate under different light conditions was linked to N-a, LMA and CO2 diffusion conductance. Our results show that M. horridula has high photosynthetic plasticity in response to growth irradiance, and that photosynthetic performance is better from plants grown under brighter illumination. Such findings will be beneficial when developing a cultivation strategy in commercial production.
关键词Chlorophyll Fluorescence Growth Irradiance Leaf Mass Per Unit Area Leaf Nitrogen Photosynthesis
资助信息Natural Science Foundation of China [31170315, 30770226]; West Light Foundation of the Chinese Academy of Sciences
收录类别SCI
语种英语
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文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/15678
专题资源植物与生物技术所级重点实验室
作者单位1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Econ Plants & Biotechnol, Kunming 650204, Peoples R China
2.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Key Lab Trop Forest Ecol, Kunming 650223, Peoples R China
3.Beijing Forestry Univ, Beijing 100083, Peoples R China
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Zhang, Shi-Bao,Yin, Lu-Xi. Plasticity in photosynthesis and functional leaf traits of Meconopsis horridula var. racemosa in response to growth irradiance[J]. BOTANICAL STUDIES,2012,53(3):335-343.
APA Zhang, Shi-Bao,&Yin, Lu-Xi.(2012).Plasticity in photosynthesis and functional leaf traits of Meconopsis horridula var. racemosa in response to growth irradiance.BOTANICAL STUDIES,53(3),335-343.
MLA Zhang, Shi-Bao,et al."Plasticity in photosynthesis and functional leaf traits of Meconopsis horridula var. racemosa in response to growth irradiance".BOTANICAL STUDIES 53.3(2012):335-343.
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