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学科主题: Engineering ; Environmental; Environmental Sciences; Water Resources
题名: Contribution of Streptomyces in sediment to earthy odor in the overlying water in Xionghe Reservoir, China
作者: Zuo, Yanxia1, 2; Li, Lin1; Zhang, Ting1; Zheng, Lingling1; Dai, Gongyuan1, 2; Liu, Liming1, 2; Song, Lirong1
通讯作者: Song, LR, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China ; lrsong@ihb.ac.cn
关键词: 2-MIB ; Geosmin ; Actinomycetes ; Overlying water ; Release ; Sediment
刊名: WATER RESEARCH
发表日期: 2010-12-01
DOI: 10.1016/j.watres.2010.08.001
卷: 44, 期:20, 页:6085-6094
收录类别: SCI
文章类型: Article
部门归属: [Zuo, Yanxia; Li, Lin; Zhang, Ting; Zheng, Lingling; Dai, Gongyuan; Liu, Liming; Song, Lirong] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China; [Zuo, Yanxia; Dai, Gongyuan; Liu, Liming] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
WOS标题词: Science & Technology ; Technology ; Life Sciences & Biomedicine ; Physical Sciences
资助者: National Key Project for Basic Research [2008CB418101, 2008CB418006]; National Natural Science Foundation of China [20807055, U0833604]
类目[WOS]: Engineering, Environmental ; Environmental Sciences ; Water Resources
研究领域[WOS]: Engineering ; Environmental Sciences & Ecology ; Water Resources
摘要: Musty and earthy odors frequently characterize the source water and fish of the Xionghe Reservoir in China. Although odorous compounds and odor-producing cyanobacteria have been analyzed in surface water, potential odorants in sediments and their contribution to the water body have remained uninvestigated. In this study, we examined the odorous compounds and possible odor-producers in the sediments and overlying water of Xionghe Reservoir from November 2007 to October 2008. High concentrations of geosmin (up to 5280.1 ng kg(-1) dw(-1)) were detected in sediments, and eight strains of Streptomyces isolated from sediments were verified as producers of geosmin and/or 2-MIB in M liquid medium by HSPME-GC-MS. Geosmin concentrations in the overlying water were correlated with those in the sediments (r = 0.838, p <0.05). In vitro studies showed that geosmin in the overlying water was released from the sediment, and that within 12 days the amount released from the sediment was 21.4-51.4%. Concentrations of geosmin in sediments were positively correlated with organic matter (r = 0.642, p <0.01), total nitrogen (r = 0.606, p <0.01) and Chi a (r = 0.674, p < 0.01), and were negatively associated with temperature (r = -0.425, p <0.05). This study indicates that odorous compounds that are released from sediments should be taken into account when assessing the sources of these odorants in waters. (C) 2010 Elsevier Ltd. All rights reserved.
英文摘要: Musty and earthy odors frequently characterize the source water and fish of the Xionghe Reservoir in China. Although odorous compounds and odor-producing cyanobacteria have been analyzed in surface water, potential odorants in sediments and their contribution to the water body have remained uninvestigated. In this study, we examined the odorous compounds and possible odor-producers in the sediments and overlying water of Xionghe Reservoir from November 2007 to October 2008. High concentrations of geosmin (up to 5280.1 ng kg(-1) dw(-1)) were detected in sediments, and eight strains of Streptomyces isolated from sediments were verified as producers of geosmin and/or 2-MIB in M liquid medium by HSPME-GC-MS. Geosmin concentrations in the overlying water were correlated with those in the sediments (r = 0.838, p <0.05). In vitro studies showed that geosmin in the overlying water was released from the sediment, and that within 12 days the amount released from the sediment was 21.4-51.4%. Concentrations of geosmin in sediments were positively correlated with organic matter (r = 0.642, p <0.01), total nitrogen (r = 0.606, p <0.01) and Chi a (r = 0.674, p < 0.01), and were negatively associated with temperature (r = -0.425, p <0.05). This study indicates that odorous compounds that are released from sediments should be taken into account when assessing the sources of these odorants in waters. (C) 2010 Elsevier Ltd. All rights reserved.
关键词[WOS]: MUSTY-ODOR ; GEOSMIN PRODUCTION ; LAKE KASUMIGAURA ; BENTHIC CYANOBACTERIA ; PENICILLIUM-EXPANSUM ; DRINKING-WATER ; RAINBOW-TROUT ; 2-METHYLISOBORNEOL ; IDENTIFICATION ; RIVER
语种: 英语
WOS记录号: WOS:000285443700024
ISSN号: 0043-1354
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/15540
Appears in Collections:藻类生物学及应用研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Zuo, Yanxia; Li, Lin; Zhang, Ting; Zheng, Lingling; Dai, Gongyuan; Liu, Liming; Song, Lirong.Contribution of Streptomyces in sediment to earthy odor in the overlying water in Xionghe Reservoir, China,WATER RESEARCH,2010,44(20):6085-6094
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