Photosynthetic performance and acclimation of Incarvillea delavayi to water stress
Cai, Y. -F.; Zhang, S. -B.; Hu, H.; Li, S. -Y.
2010-03-01
发表期刊BIOLOGIA PLANTARUM
ISSN0006-3134
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
资助信息We thank Prof. C.-X. Li and K. Xu for assistance in the experiments. The authors were also supported by Mr. C.-K. Xiong and his coworkers from the Ge-Sang Flower Company. We are grateful to National Natural Science Foundation of China (30870239), Yunnan Provincial Science and Technology Program (007C0001Z) and West Light Foundation of CAS.
学科领域Plant Sciences
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:000276699500013
引用统计
被引频次:14[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/151853/2415
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
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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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