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学科主题: Environmental Sciences & Ecology; Geology
题名: Isolation and Characterization of Organic Phosphorus-Mineralizing Bacteria in Sediment of a Chinese Large Shallow Eutrophic Lake (Lake Taihu)
作者: Zhou, Chun1, 2; Song, Chunlei1; Huang, Daizhong1, 2; Liu, Yunbing1, 2; Cao, Xiuyun1; Zhou, Yiyong1
通讯作者: Zhou, YY (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, 7 Donghu Nan Rd, Wuhan 430072, Hubei, Peoples R China ; zhouyy@ihb.ac.cn
关键词: organic phosphorus-mineralizing bacteria ; bacteria in sediment ; abundance ; spatial and seasonal variations ; alkaline phosphatase ; Lake Taihu
刊名: GEOMICROBIOLOGY JOURNAL
发表日期: 2011
DOI: 10.1080/01490451.2010.511438
卷: 28, 期:8, 页:660-666
收录类别: SCI
文章类型: Article
部门归属: [Zhou, Chun; Song, Chunlei; Huang, Daizhong; Liu, Yunbing; Cao, Xiuyun; Zhou, Yiyong] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China; [Zhou, Chun; Huang, Daizhong; Liu, Yunbing] Chinese Acad Sci, Grad Sch, Beijing, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
资助者: National Natural Science Foundation of China[40730528]; National Basic Research Program of China[2008CB418005]; State major project of water pollution control and management[2008ZX07101-013]; State Key Laboratory of Freshwater Ecology and Biotechnology[2009FBZ10]
类目[WOS]: Environmental Sciences ; Geosciences, Multidisciplinary
研究领域[WOS]: Environmental Sciences & Ecology ; Geology
摘要: The organic phosphorus mineralizing bacteria (OPB) play an important role in phosphorus cycling in lake sediment, to which less attention has been paid. Monthly sediment samples in 2009 ending in October, together with the samples from different seasons (May, July, October, and December) in 2008, were collected at 6 sites in a Chinese large shallow eutrophic lake (Lake Taihu). The sediment OPB numbers ranged from 2.2 x 10(6) to 1.79 x 10(8) cells g(-1) (dry weight) at different sampling sites and in different seasons, with the average being 3.88 x 10(7) cells g(-1) (dry weight). Its number was highest at the most polluted site and peaked in spring and summer, which can be explained by the enrichment of organic matter in sediment. Furthermore, there existed a significant positive relationship between the OPB numbers and alkaline phosphatase activities in the sediment. The 6 OPB strains isolated from the sediment were distinct in terms of their colony morphology on the yolk agar, biochemical characteristics and phosphorus release abilities. According to the 16S rDNA sequences, these OPB belong to Bacillus cereus, Stenotrophomonas maltophilia, Stenotrophomonas sp., Bacillus cereus, Xanthomonas sp., Pseudomonas sp. They were distinguished from the OPB species recorded in a Chinese small shallow eutrophic lake whose sediment organic content was remarkably higher. Taken together, organic matter shaped the OPB community not only quantitatively but also qualitatively, which in concert facilitated the enzymatic hydrolysis of organic phosphorus in lake sediment.
英文摘要: The organic phosphorus mineralizing bacteria (OPB) play an important role in phosphorus cycling in lake sediment, to which less attention has been paid. Monthly sediment samples in 2009 ending in October, together with the samples from different seasons (May, July, October, and December) in 2008, were collected at 6 sites in a Chinese large shallow eutrophic lake (Lake Taihu). The sediment OPB numbers ranged from 2.2 x 10(6) to 1.79 x 10(8) cells g(-1) (dry weight) at different sampling sites and in different seasons, with the average being 3.88 x 10(7) cells g(-1) (dry weight). Its number was highest at the most polluted site and peaked in spring and summer, which can be explained by the enrichment of organic matter in sediment. Furthermore, there existed a significant positive relationship between the OPB numbers and alkaline phosphatase activities in the sediment. The 6 OPB strains isolated from the sediment were distinct in terms of their colony morphology on the yolk agar, biochemical characteristics and phosphorus release abilities. According to the 16S rDNA sequences, these OPB belong to Bacillus cereus, Stenotrophomonas maltophilia, Stenotrophomonas sp., Bacillus cereus, Xanthomonas sp., Pseudomonas sp. They were distinguished from the OPB species recorded in a Chinese small shallow eutrophic lake whose sediment organic content was remarkably higher. Taken together, organic matter shaped the OPB community not only quantitatively but also qualitatively, which in concert facilitated the enzymatic hydrolysis of organic phosphorus in lake sediment.
关键词[WOS]: ALKALINE-PHOSPHATASE ; RELEASE ; SOLUBILIZATION ; DEGRADATION ; KINETICS ; SOILS ; RIVER
语种: 英语
WOS记录号: WOS:000297016800002
ISSN号: 0149-0451
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/16449
Appears in Collections:水环境工程研究中心_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, Hubei, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China

Recommended Citation:
Zhou, Chun; Song, Chunlei; Huang, Daizhong; Liu, Yunbing; Cao, Xiuyun; Zhou, Yiyong.Isolation and Characterization of Organic Phosphorus-Mineralizing Bacteria in Sediment of a Chinese Large Shallow Eutrophic Lake (Lake Taihu),GEOMICROBIOLOGY JOURNAL,2011,28(8):660-666
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