Effect of nitrate enrichment and salinity reduction on the seagrass Thalassia hemprichii previously grown in low light
[Jiang, Zhijian; Huang, Xiaoping; Zhang, Jingping] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China; Zhang, Jingping] Chinese Acad Sci, Trop Marine Biol Res Stn Hainan, Sanya 572200, PR, Peoples R China; xphuang@scsio.ac.cn
2013
发表期刊JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY
ISSN0022-0981
卷号443页码:114-122
摘要A sub-acute experiment that tested carbon and nitrogen metabolisms and the plant's antioxidant defence system was used to investigate the effects of nitrate enrichment and salinity reduction on the tropical seagrass Thalassia hemprichii that had previously been grown in low light conditions. Shading significantly reduced leaf growth rate, nitrate reductase activity and non-structural carbohydrate (NSC) content in both aboveground and belowground tissues, but enhanced superoxide dismutase and guaiacol peroxidase (POD) activities and free amino acids in aboveground tissue. After shade removal, salinity reduction with pre-shading decreased minimum fluorescence and maximum fluorescence under all nitrate conditions. Pre-shading aggravated the negative effect of nitrate enrichment and salinity reduction on leaf growth rate. Nitrate enrichment led to a greater reduction in NSC in aboveground tissues of pre-shading plants compared to the control. Furthermore, salinity reduction with pre-shading even induced effective NSC translocation from belowground to aboveground tissues. Nitrate enrichment and salinity reduction both increased POD activity in T. hemprichii grown previously in low light. Therefore, pre-shading increases the vulnerability of T. hemprichii to eutrophication and hyposalinity, which must be considered when predicting future responses and effective management of seagrass resources. (C) 2013 Elsevier B.V. All rights reserved.
部门归属LTO
关键词Enzymatic Activity Growth Nitrate Enrichment Salinity Reduction Seagrass Thalassia Hemprichii
学科领域Ecology ; Marine & Freshwater Biology
资助者This research was supported by the National Natural Science Foundation of China (nos. 41076069 and 40776086), the Project of Environmental Quality Evaluation of Seagrass Bed in South China Sea (no. DOMEP (MEA)-01-03), the Public Science and Technology Research Funds Projects of Ocean (no. 201305030), and the Knowledge Innovation Program of the Chinese Academy of Sciences (no. SQ201219). We express our thanks to Mr Li Lei and Feng Shaohui for their help in field sampling. We also would like to thank the editors and reviewers for their comments and suggestions to the manuscript. ; This research was supported by the National Natural Science Foundation of China (nos. 41076069 and 40776086), the Project of Environmental Quality Evaluation of Seagrass Bed in South China Sea (no. DOMEP (MEA)-01-03), the Public Science and Technology Research Funds Projects of Ocean (no. 201305030), and the Knowledge Innovation Program of the Chinese Academy of Sciences (no. SQ201219). We express our thanks to Mr Li Lei and Feng Shaohui for their help in field sampling. We also would like to thank the editors and reviewers for their comments and suggestions to the manuscript. ; This research was supported by the National Natural Science Foundation of China (nos. 41076069 and 40776086), the Project of Environmental Quality Evaluation of Seagrass Bed in South China Sea (no. DOMEP (MEA)-01-03), the Public Science and Technology Research Funds Projects of Ocean (no. 201305030), and the Knowledge Innovation Program of the Chinese Academy of Sciences (no. SQ201219). We express our thanks to Mr Li Lei and Feng Shaohui for their help in field sampling. We also would like to thank the editors and reviewers for their comments and suggestions to the manuscript. ; This research was supported by the National Natural Science Foundation of China (nos. 41076069 and 40776086), the Project of Environmental Quality Evaluation of Seagrass Bed in South China Sea (no. DOMEP (MEA)-01-03), the Public Science and Technology Research Funds Projects of Ocean (no. 201305030), and the Knowledge Innovation Program of the Chinese Academy of Sciences (no. SQ201219). We express our thanks to Mr Li Lei and Feng Shaohui for their help in field sampling. We also would like to thank the editors and reviewers for their comments and suggestions to the manuscript.
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语种英语
资助者This research was supported by the National Natural Science Foundation of China (nos. 41076069 and 40776086), the Project of Environmental Quality Evaluation of Seagrass Bed in South China Sea (no. DOMEP (MEA)-01-03), the Public Science and Technology Research Funds Projects of Ocean (no. 201305030), and the Knowledge Innovation Program of the Chinese Academy of Sciences (no. SQ201219). We express our thanks to Mr Li Lei and Feng Shaohui for their help in field sampling. We also would like to thank the editors and reviewers for their comments and suggestions to the manuscript. ; This research was supported by the National Natural Science Foundation of China (nos. 41076069 and 40776086), the Project of Environmental Quality Evaluation of Seagrass Bed in South China Sea (no. DOMEP (MEA)-01-03), the Public Science and Technology Research Funds Projects of Ocean (no. 201305030), and the Knowledge Innovation Program of the Chinese Academy of Sciences (no. SQ201219). We express our thanks to Mr Li Lei and Feng Shaohui for their help in field sampling. We also would like to thank the editors and reviewers for their comments and suggestions to the manuscript. ; This research was supported by the National Natural Science Foundation of China (nos. 41076069 and 40776086), the Project of Environmental Quality Evaluation of Seagrass Bed in South China Sea (no. DOMEP (MEA)-01-03), the Public Science and Technology Research Funds Projects of Ocean (no. 201305030), and the Knowledge Innovation Program of the Chinese Academy of Sciences (no. SQ201219). We express our thanks to Mr Li Lei and Feng Shaohui for their help in field sampling. We also would like to thank the editors and reviewers for their comments and suggestions to the manuscript. ; This research was supported by the National Natural Science Foundation of China (nos. 41076069 and 40776086), the Project of Environmental Quality Evaluation of Seagrass Bed in South China Sea (no. DOMEP (MEA)-01-03), the Public Science and Technology Research Funds Projects of Ocean (no. 201305030), and the Knowledge Innovation Program of the Chinese Academy of Sciences (no. SQ201219). We express our thanks to Mr Li Lei and Feng Shaohui for their help in field sampling. We also would like to thank the editors and reviewers for their comments and suggestions to the manuscript.
WOS记录号WOS:000320425700013
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被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/10912
专题热带海洋环境国家重点实验室(LTO)
通讯作者xphuang@scsio.ac.cn
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[Jiang, Zhijian,Huang, Xiaoping,Zhang, Jingping] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China,et al. Effect of nitrate enrichment and salinity reduction on the seagrass Thalassia hemprichii previously grown in low light[J]. JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY,2013,443:114-122.
APA [Jiang, Zhijian,Huang, Xiaoping,Zhang, Jingping] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China,Zhang, Jingping] Chinese Acad Sci, Trop Marine Biol Res Stn Hainan, Sanya 572200, PR, Peoples R China,&xphuang@scsio.ac.cn.(2013).Effect of nitrate enrichment and salinity reduction on the seagrass Thalassia hemprichii previously grown in low light.JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY,443,114-122.
MLA [Jiang, Zhijian,et al."Effect of nitrate enrichment and salinity reduction on the seagrass Thalassia hemprichii previously grown in low light".JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY 443(2013):114-122.
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