Chin J Plan Ecolo ›› 2008, Vol. 32 ›› Issue (2): 424-430.doi: 10.3773/j.issn.1005-264x.2008.02.021

• Research Articles • Previous Articles     Next Articles


HUI Jun-Ai1,2; YE Qing-Sheng1*   

  1. 1Guangdong Key Laboratory of Biotechnology for Plant Development, College of Life Science, South China Normal University, Guangzhou 510631, China; 2 College of Gardening and Horticulture, Yangtze University, Jingzhou, Hubei 434025, China
  • Online:2008-03-30 Published:2008-03-30
  • Contact: YE Qing-Sheng

Abstract: Aims Our objective was to determine the effects of elevated CO2 concentration on photosynthetic characteristics, growth
rate, flowering percentage and activity of photosynthetic enzyme in Guzmania `Denise’ and Guzmania `Cherry’.
Methods We measured Pn, Gs and Tr under various growth conditions using the Li-6400 and used the data to calculate WUE
(water use efficiency, WUE=Pn/Tr). We determined chlorophyll and total soluble sugar levels by the method of Zhang & Qu
(2003), starch content by the method of Xu et al. (1998) and rubisco and glycolic acid oxidase levels by the method of Ye et
al. (1993).
Important findings Under two elevated CO2 concentrations, net photosynthetic rate increased by 6.24%-31.91% and 11.92%-
41.48% over plants grown in ambient CO2 concentration during 30 d. Elevated CO2 concentration caused a marked rise in soluble
sugar and starch accumulation in leaves, but significantly reduced stomatal conductance and transpiration rate. In addition,
Rubisco activity was increased, and glycolate oxidase activity obviously was decreased. Plant height and leaf area increased
6.94%-14.63% and 1.66%-7.06% over plants grown in ambient CO2. There were 9.71%-20.85% and 2.87%-11.62% increases for (900±
40) μmol CO2•mol-1. Dry and fresh weights also increased with elevated CO2 concentration, as was flowering in Guzmania

No related articles found!
Full text



[1] Linshu Zhao, Luxiang Liu, Jiayu Gu, Huijun Guo, Junhui Li, Yongdun Xie, Shirong Zhao. A Method to Improve Sample Preparation for Observing Stomata Guard Cells in Triticum aestivum[J]. Chin Bull Bot, 2014, 49(1): 120 -126 .
[2] TANG Zhong-Hua YU Jing-Hua YANG Feng-Jian ZU Yuan-Gang. Metabolic Biology of Plant Alkaloids[J]. Chin Bull Bot, 2003, 20(06): 696 -702 .
[3] Chunlin Long;Meilan Li . Status and Conservation Strategies of Community Plant Genetic Resources—A Case Study in Manlun, a Dai Village in Xishuangbanna[J]. Chin Bull Bot, 2006, 23(2): 177 -185 .
[4] KONG Hai-Yan JIA Gui-Xia WEN Yue-Ge. The Role of Calcium in Flower Development[J]. Chin Bull Bot, 2003, 20(02): 168 -177 .
[5] CHEN Jian-San and ZHAO Shi-Xu. A Study Cell Embryology of Rice 84-15[J]. Chin Bull Bot, 1999, 16(03): 284 -287 .
[6] Yanqing Zhou, Wanshen Wang, Xiangnan Wang, Hongying Duan. Recent Progress in DNA Molecular Markers and Gene Functions of Rehmannia glutinosa[J]. Chin Bull Bot, 2015, 50(5): 665 -672 .
[7] Wenjie Cao, Guisheng Li. Plasma Membrane Positioning Mechanism of Auxin Efflux Carrier PIN Proteins[J]. Chin Bull Bot, 2016, 51(2): 265 -273 .
[8] Han Yeliang. A Discussion on the Northern Boundary of the Subtropical Evergreen Broad-leaf Forest Zone in Anhui Province (Abstract)[J]. Chin J Plan Ecolo, 1981, 5(1): 54 -57 .
[9] Li Yi-de, Zeng Qing-bo, Wu Zhong-min, Du Zhi-hu, Zhou Guang-yi, Chen Bu-feng, Zhang Zhen-cai, Chen Huan-qiang. Study on Biomass of Tropical Mountain Rain Forest in Jianfengling, Hainan Province[J]. Chin J Plan Ecolo, 1992, 16(4): 293 -300 .
[10] XIA Jiang-Bao, ZHANG Guang-Can, SUN Jing-Kuan, LIU Xia. Threshold effects of photosynthetic and physiological parameters in Prunus sibirica to soil moisture and light intensity[J]. Chin J Plan Ecolo, 2011, 35(3): 322 -329 .