Flexible and reversible responses to different irradiance levels during photosynthetic acclimation of Cypripedium guttatum

doi:10.1016/j.jplph.2006.02.012

	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
通讯作者	huhong@mail.kib.ac.cn
	2007-05-01
发表期刊	JOURNAL OF PLANT PHYSIOLOGY
ISSN	0176-1617
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
DOI	10.1016/j.jplph.2006.02.012
收录类别	SCI
语种	英语
WOS记录号	WOS:000246243700010
引用统计
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
推荐引用方式 GB/T 7714	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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