Functions of Calcium-bound Phosphorus in Relation to Characteristics of Phosphorus Releasing Bacteria in Sediment of a Chinese Shallow Lake (Lake Wabu)

doi:10.1080/01490451.2015.1099762

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	Functions of Calcium-bound Phosphorus in Relation to Characteristics of Phosphorus Releasing Bacteria in Sediment of a Chinese Shallow Lake (Lake Wabu)
	Li, Hui 1,2; Liu, Yuqian 1; Cao, Xiuyun 1; Song, Chunlei 1; Zhou, Yiyong 1
刊名	GEOMICROBIOLOGY JOURNAL
	2016
卷号	33 期号:9 页码:751-757
关键词	Sediment phosphorus calcium-bound phosphorus equilibrium phosphorus concentration phosphorus releasing bacteria lake eutrophication
ISSN号	0149-0451
DOI	10.1080/01490451.2015.1099762
通讯作者	Zhou, Yiyong(zhouyy@ihb.ac.cn)
英文摘要	Sediment phosphorus (P) release accelerates lake eutrophication, while retention capacity and release potential of different P fractions, calcium-bound P (CaCO3 approximate to P) in particular, still remains unclear. Fractionation and sorption behaviors of phosphorus were studied in sediment of a Chinese shallow lake (Lake Wabu) and two inflowing rivers from December 2011 to December 2012. Abundance of P releasing bacteria was analyzed, and their main species were isolated using a culture-dependent method and identified by their 16S rDNA sequences. CaCO3 approximate to P release abilities of these bacteria were also tested. In sediments of both the lake and rivers studied, the rank order of the different P extracts was CaCO3 approximate to P > iron-bound P > acid-soluble organic P > hot NaOH-extractable organic P. At the same time, CaCO3 approximate to P content and equilibrium P concentration (EPC0) values in river sediments were significantly higher than those in the lake. Additionally, EPC0 changes non-monotonically with increasing CaCO3 approximate to P content, forming a V-shaped curve, with the lowest EPC0 at an intermediate CaCO3 approximate to P content (around 180mg kg(-1)). Below this threshold, CaCO3 approximate to P was a component strengthening P retention; moreover, CaCO3 approximate to P became an active species responsible for P release. Noticeably, between the two parts divided by this threshold, the differences in abundance of inorganic phosphorus solubilizing bacteria (IPB) and organic phosphorus mineralizing bacteria (OPB) were insignificant and the dominant IPB species clustered together. By contrast, OPB was distinguished from each other, whose dominant species isolated from the part with higher CaCO3 approximate to P content, namely Novosphingobium sp., exhibited a stronger ability to solubilize CaCO3 approximate to P. Shortly, with lower content, CaCO3 approximate to P tends to stabilize P in sediment; while with higher content or under eutrophic condition, it shifted into P source, with some OPB species becoming the main factors to drive its release.
资助项目	National Natural Science Foundation of China[41230748] ; National Natural Science Foundation of China[41073066] ; Major Science and Technology Program for Water Pollution Control and Treatment[2012ZX07103003-01] ; State Key Laboratory of Freshwater Ecology and Biotechnology[2011FBZ15]
WOS关键词	EUTROPHIC LAKE ; ALKALINE-PHOSPHATASE ; BISPHENOL-A ; TAIHU ; FRACTIONS ; SORPTION ; WATER ; RIVER ; BIODEGRADATION ; RESERVOIR
WOS研究方向	Environmental Sciences & Ecology ; Geology
语种	英语
出版者	TAYLOR & FRANCIS INC
WOS记录号	WOS:000386794500002
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Major Science and Technology Program for Water Pollution Control and Treatment ; Major Science and Technology Program for Water Pollution Control and Treatment ; Major Science and Technology Program for Water Pollution Control and Treatment ; Major Science and Technology Program for Water Pollution Control and Treatment ; State Key Laboratory of Freshwater Ecology and Biotechnology ; State Key Laboratory of Freshwater Ecology and Biotechnology ; State Key Laboratory of Freshwater Ecology and Biotechnology ; State Key Laboratory of Freshwater Ecology and Biotechnology ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Major Science and Technology Program for Water Pollution Control and Treatment ; Major Science and Technology Program for Water Pollution Control and Treatment ; Major Science and Technology Program for Water Pollution Control and Treatment ; Major Science and Technology Program for Water Pollution Control and Treatment ; State Key Laboratory of Freshwater Ecology and Biotechnology ; State Key Laboratory of Freshwater Ecology and Biotechnology ; State Key Laboratory of Freshwater Ecology and Biotechnology ; State Key Laboratory of Freshwater Ecology and Biotechnology ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Major Science and Technology Program for Water Pollution Control and Treatment ; Major Science and Technology Program for Water Pollution Control and Treatment ; Major Science and Technology Program for Water Pollution Control and Treatment ; Major Science and Technology Program for Water Pollution Control and Treatment ; State Key Laboratory of Freshwater Ecology and Biotechnology ; State Key Laboratory of Freshwater Ecology and Biotechnology ; State Key Laboratory of Freshwater Ecology and Biotechnology ; State Key Laboratory of Freshwater Ecology and Biotechnology ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Major Science and Technology Program for Water Pollution Control and Treatment ; Major Science and Technology Program for Water Pollution Control and Treatment ; Major Science and Technology Program for Water Pollution Control and Treatment ; Major Science and Technology Program for Water Pollution Control and Treatment ; State Key Laboratory of Freshwater Ecology and Biotechnology ; State Key Laboratory of Freshwater Ecology and Biotechnology ; State Key Laboratory of Freshwater Ecology and Biotechnology ; State Key Laboratory of Freshwater Ecology and Biotechnology
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/342005/34184]
专题	水生生物研究所_水环境工程研究中心_期刊论文
通讯作者	Zhou, Yiyong
作者单位	1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, 7 Donghu South Rd, Wuhan 430072, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Li, Hui,Liu, Yuqian,Cao, Xiuyun,et al. Functions of Calcium-bound Phosphorus in Relation to Characteristics of Phosphorus Releasing Bacteria in Sediment of a Chinese Shallow Lake (Lake Wabu)[J]. GEOMICROBIOLOGY JOURNAL,2016,33(9):751-757.
APA	Li, Hui,Liu, Yuqian,Cao, Xiuyun,Song, Chunlei,&Zhou, Yiyong.(2016).Functions of Calcium-bound Phosphorus in Relation to Characteristics of Phosphorus Releasing Bacteria in Sediment of a Chinese Shallow Lake (Lake Wabu).GEOMICROBIOLOGY JOURNAL,33(9),751-757.
MLA	Li, Hui,et al."Functions of Calcium-bound Phosphorus in Relation to Characteristics of Phosphorus Releasing Bacteria in Sediment of a Chinese Shallow Lake (Lake Wabu)".GEOMICROBIOLOGY JOURNAL 33.9(2016):751-757.