globalchange  > 过去全球变化的重建
DOI: 10.1371/journal.pone.0110814
论文题名:
Light Respiratory Processes and Gross Photosynthesis in Two Scleractinian Corals
作者: Verena Schrameyer; Daniel Wangpraseurt; Ross Hill; Michael Kühl; Anthony W. D. Larkum; Peter J. Ralph
刊名: PLOS ONE
ISSN: 1932-6203
出版年: 2014
发表日期: 2014-10-31
卷: 9, 期:10
语种: 英语
英文关键词: Corals ; Photosynthesis ; Carbon dioxide ; Photons ; Light ; Respiration ; Calcification ; Sea water
英文摘要: The light dependency of respiratory activity of two scleractinian corals was examined using O2 microsensors and CO2 exchange measurements. Light respiration increased strongly but asymptotically with elevated irradiance in both species. Light respiration in Pocillopora damicornis was higher than in Pavona decussata under low irradiance, indicating species-specific differences in light-dependent metabolic processes. Overall, the coral P. decussata exhibited higher CO2 uptake rates than P. damicornis over the experimental irradiance range. P. decussata also harboured twice as many algal symbionts and higher total protein biomass compared to P. damicornis, possibly resulting in self-shading of the symbionts and/or changes in host tissue specific light distribution. Differences in light respiration and CO2 availability could be due to host-specific characteristics that modulate the symbiont microenvironment, its photosynthesis, and hence the overall performance of the coral holobiont.
URL: http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0110814&type=printable
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/19431
Appears in Collections:过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响

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作者单位: Plant Functional Biology and Climate Change Cluster, School of the Environment, University of Technology, Sydney, Ultimo, New South Wales, Australia;Plant Functional Biology and Climate Change Cluster, School of the Environment, University of Technology, Sydney, Ultimo, New South Wales, Australia;Plant Functional Biology and Climate Change Cluster, School of the Environment, University of Technology, Sydney, Ultimo, New South Wales, Australia;Centre for Marine Bio-Innovation and Sydney Institute of Marine Science, School of Biological, Earth and Environmental Sciences, The University of New South Wales, Sydney, New South Wales, Australia;Plant Functional Biology and Climate Change Cluster, School of the Environment, University of Technology, Sydney, Ultimo, New South Wales, Australia;Marine Biological Section, Department of Biology, University of Copenhagen, Helsingør, Denmark;Singapore Centre on Environmental Life Sciences Engineering, School of Biological Sciences, Nanyang Technological University, Singapore, Singapore;Plant Functional Biology and Climate Change Cluster, School of the Environment, University of Technology, Sydney, Ultimo, New South Wales, Australia;Plant Functional Biology and Climate Change Cluster, School of the Environment, University of Technology, Sydney, Ultimo, New South Wales, Australia

Recommended Citation:
Verena Schrameyer,Daniel Wangpraseurt,Ross Hill,et al. Light Respiratory Processes and Gross Photosynthesis in Two Scleractinian Corals[J]. PLOS ONE,2014-01-01,9(10)
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