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学科主题: Environmental Sciences; Toxicology
题名: Effects of Organic-Rich Sediment and Below-Ground Sulfide Exposure on Submerged Macrophyte, Hydrilla verticillata
作者: Wu, Juan1, 2; Cheng, Shuiping1; Liang, Wei1; Wu, Zhenbin1
通讯作者: Wu, ZB, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, 7 Donghu So Rd, Wuhan 430072, Peoples R China
关键词: Sediment ; Sulfide ; Hydrilla verticillata ; Growth
刊名: BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
发表日期: 2009-10-01
DOI: 10.1007/s00128-009-9800-y
卷: 83, 期:4, 页:497-501
收录类别: SCI
文章类型: Article
部门归属: [Wu, Juan; Cheng, Shuiping; Liang, Wei; Wu, Zhenbin] Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Wu, Juan] Chinese Acad Sci, Grad Sch, Beijing 10039, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: Key Project of Knowledge Innovation Program of Chinese Academy of Sciences [KZCX2-YW-426]; Project of National Major Program of Science and Technology [2008ZX07316-004]
类目[WOS]: Environmental Sciences ; Toxicology
研究领域[WOS]: Environmental Sciences & Ecology ; Toxicology
摘要: The effects of organic-rich sediment and sulfide exposure on Hydrilla verticillata were investigated. The organic richness of sediment was simulated by adding sucrose into sediments, and sulfide exposure was conducted by adding sodium sulfide to plant roots. The length, biomass and density of shoot reduced in the sucrose-amended sediments, and the largest reduction occurred in the highest 1.0% addition treatment by 84.2%, 56.7% and 92.4%, respectively. However, the 0.1% addition treatment stimulated the growth of root. The effects of below-ground sulfide exposure on the physiological activities of H. verticillata were determined by adding sulfide to the below-ground tissue. Significantly inhibitory effects of sulfide were observed on plant photosynthesis, root carbohydrate and nitrogen synthetic reserves. The net photosynthetic rates, soluble carbohydrate and soluble protein contents in root were reduced by 104%, 71.8% and 49.8%, respectively, in the 0.6 mM sulfide treatment.
英文摘要: The effects of organic-rich sediment and sulfide exposure on Hydrilla verticillata were investigated. The organic richness of sediment was simulated by adding sucrose into sediments, and sulfide exposure was conducted by adding sodium sulfide to plant roots. The length, biomass and density of shoot reduced in the sucrose-amended sediments, and the largest reduction occurred in the highest 1.0% addition treatment by 84.2%, 56.7% and 92.4%, respectively. However, the 0.1% addition treatment stimulated the growth of root. The effects of below-ground sulfide exposure on the physiological activities of H. verticillata were determined by adding sulfide to the below-ground tissue. Significantly inhibitory effects of sulfide were observed on plant photosynthesis, root carbohydrate and nitrogen synthetic reserves. The net photosynthetic rates, soluble carbohydrate and soluble protein contents in root were reduced by 104%, 71.8% and 49.8%, respectively, in the 0.6 mM sulfide treatment.
关键词[WOS]: EELGRASS ZOSTERA-MARINA ; THALASSIA-TESTUDINUM ; GROWTH ; OXYGEN ; PHOTOSYNTHESIS ; SEAGRASS ; DYNAMICS ; EVENTS ; SULFUR ; LIGHT
语种: 英语
WOS记录号: WOS:000269926000008
ISSN号: 0007-4861
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/7578
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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作者单位: 1.Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 10039, Peoples R China

Recommended Citation:
Wu, Juan; Cheng, Shuiping; Liang, Wei; Wu, Zhenbin.Effects of Organic-Rich Sediment and Below-Ground Sulfide Exposure on Submerged Macrophyte, Hydrilla verticillata,BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY,2009,83(4):497-501
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