KIB OpenIR  > 资源植物与生物技术所级重点实验室
Photosynthetic performance and acclimation of Incarvillea delavayi to water stress
Cai, Y. -F.; Zhang, S. -B.; Hu, H.; Li, S. -Y.
Corresponding Authorhuhong@mail.kib.ac.cn
2010-03-01
Source PublicationBIOLOGIA PLANTARUM
ISSN0006-3134
Volume54Issue:1Pages:89-96
AbstractThe 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.
KeywordChlorophyll Fluorescence Net Photosynthetic Rate Nitrogen Photosynthetic Limitation Rubpco Stomatal Conductance Water Stress
Subject AreaPlant Sciences
Indexed BySCI
Language英语
WOS Research AreaPlant Sciences
WOS SubjectPlant Sciences
WOS IDWOS:000276699500013
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/2415
Collection资源植物与生物技术所级重点实验室
AffiliationChinese Acad Sci, Kunming Inst Bot, Kunming 650204, Peoples R China
Recommended Citation
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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