Flexible and reversible responses to different irradiance levels during photosynthetic acclimation of Cypripedium guttatum
Zhang, Shi-Bao; Hu, Hong; Xu, Kun; Li, Zhong-Rong; Yang, Yong-Ping
2007-05-01
发表期刊JOURNAL OF PLANT PHYSIOLOGY
ISSN0176-1617
卷号164期号:5页码:611-620
摘要Cypripedium guttatum can be found both in open and shady habitats. Photosynthetic acclimation of C. guttatum to different light availabilities was detected using measurements of chlorophyll fluorescence, photosynthesis and leaf traits. When growing under low light conditions, C. guttatum exhibited a greater efficiency in photochemical utilization of absorbed tight energy, and a lower ability for nonphotochemical dissipation of excess light energy, as compared to the plants growing under high light conditions. Under intermediate light conditions, C. guttatum exhibited higher photosynthetic capacity (A(max)) than those under both tow tight or high tight conditions. The differences in A(max) among three light environments was linked to the differences in biochemical efficiency, leaf N content (LNC) and leaf dry mass per unit area (LMA), but not to the differences of chlorophyll content. However, there were no significant differences in the light compensation points (LCP) and tight saturation points (LSP) for photosynthesis for the plants growing under the three light conditions. These results indicate that the photosynthetic capacity of C. guttatum leaves allows for flexible and reversible responses to different irradiance levels. Photosynthetic acclimation in C. guttatum was affected by biochemical changes, the changes in LMA and ratio of Chl a/b. Successful acclimation of C. guttatum to a broad range of light levels likely allows for its wide geographical distribution. A level of about 45% sunlight appears to be optimal for photosynthesis. (C) 2006 Elsevier GmbH. All rights reserved.
关键词Chlorophyll Fluorescence Cypripedium Guttatum Leaf Traits Light Availability Photosynthesis
学科领域Plant Sciences
DOI10.1016/j.jplph.2006.02.012
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:000246243700010
引用统计
被引频次:26[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/151853/2543
专题资源植物与生物技术所级重点实验室
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Zhang, Shi-Bao,Hu, Hong,Xu, Kun,et al. Flexible and reversible responses to different irradiance levels during photosynthetic acclimation of Cypripedium guttatum[J]. JOURNAL OF PLANT PHYSIOLOGY,2007,164(5):611-620.
APA Zhang, Shi-Bao,Hu, Hong,Xu, Kun,Li, Zhong-Rong,&Yang, Yong-Ping.(2007).Flexible and reversible responses to different irradiance levels during photosynthetic acclimation of Cypripedium guttatum.JOURNAL OF PLANT PHYSIOLOGY,164(5),611-620.
MLA Zhang, Shi-Bao,et al."Flexible and reversible responses to different irradiance levels during photosynthetic acclimation of Cypripedium guttatum".JOURNAL OF PLANT PHYSIOLOGY 164.5(2007):611-620.
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