Photosynthetic performance and acclimation of Incarvillea delavayi to water stress

	Photosynthetic performance and acclimation of Incarvillea delavayi to water stress
	Cai, Y. -F.; Zhang, S. -B.; Hu, H.; Li, S. -Y.
通讯作者	huhong@mail.kib.ac.cn
	2010-03-01
发表期刊	BIOLOGIA PLANTARUM
ISSN	0006-3134
卷号	54 期号:1 页码:89-96
摘要	The photosynthetic performance and related leaf traits of Incarvillea delavayi Bur. et Franch were studied at different water regimes to assess its capacity for photosynthetic acclimation to water stress. The initial response of I. delavayi to water stress was the closure of stomata, which resulted in down-regulation of photosynthesis. The stomatal limitation (S(L)) represented the main component to photosynthetic limitations but non-stomatal limitation (NS(L)) increased quickly with the increasing water stress, and had similar magnitude to SL under severe water stress (soil moisture 25 - 30 % of field capacity). Chlorophyll (Chl) a fluorescence parameters characterizing photosystem (PS) 2 photochemical efficiency (Phi(PS2)), electron transport rate (J) and photochemical quenching (qP) decreased with the increasing water stress, indicating impaired photosynthetic apparatus. However, the water-stressed plants had a increased mesophyll CO(2) diffusional conductance, Chl a/b ratio, leaf nitrogen partitioning in RuBPCO and bioenergetics in later grown parts, indicating that I. delavay had a substantial physiological plasticity and showed a good tolerance to water stress.
关键词	Chlorophyll Fluorescence Net Photosynthetic Rate Nitrogen Photosynthetic Limitation Rubpco Stomatal Conductance Water Stress
学科领域	Plant Sciences
收录类别	SCI
语种	英语
WOS记录号	WOS:000276699500013
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/2415
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
推荐引用方式 GB/T 7714	Cai, Y. -F.,Zhang, S. -B.,Hu, H.,et al. Photosynthetic performance and acclimation of Incarvillea delavayi to water stress[J]. BIOLOGIA PLANTARUM,2010,54(1):89-96.
APA	Cai, Y. -F.,Zhang, S. -B.,Hu, H.,&Li, S. -Y..(2010).Photosynthetic performance and acclimation of Incarvillea delavayi to water stress.BIOLOGIA PLANTARUM,54(1),89-96.
MLA	Cai, Y. -F.,et al."Photosynthetic performance and acclimation of Incarvillea delavayi to water stress".BIOLOGIA PLANTARUM 54.1(2010):89-96.

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