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The role of root-released organic acids and anions in phosphorus transformations in a sandy loam soil from Yantai, China

文献类型：期刊论文

作者Xu Gang1,3; Shao Hongbo1,2; XuRongfu3; Nie, Yuanyuan4; Pei, Yue4; Sun, Zhijun4; Blackwell, M. S. A.
刊名AFRICAN JOURNAL OF MICROBIOLOGY RESEARCH
出版日期2012-01-23
卷号6期号:3页码:674-679
关键词Low-molecular-weight organic acids organic anions phosphorus (P) transformation Hedley fractionation sandy loam soil microbiological interactions
ISSN号1996-0808
产权排序[Xu Gang; Shao Hongbo] Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Shandong Prov Key Lab Coastal Environm Proc, Yantai 264003, Peoples R China; [Shao Hongbo] Qingdao Univ Sci & Technol, Inst Life Sci, Qingdao 266042, Peoples R China; [Xu Gang; XuRongfu] Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Ato, Beijing 100039, Peoples R China; [Nie, Yuanyuan; Pei, Yue; Sun, Zhijun] China Agr Univ, Coll Sci, Yantai 264670, Peoples R China; Rothamsted Res, Okehampton EX20 2SB, Devon, England
通讯作者Shao, HB (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Shandong Prov Key Lab Coastal Environm Proc, Yantai 264003, Peoples R China.,shaohongbochu@126.com
英文摘要One mechanism by which plants can mobilize organic and inorganic forms of phosphorus (P) in soils is by exudation of low-molecular-weight organic acids and anions. However, little is known about their effects on the transformation of P fractions in soils. We used a modified Hedley fraction method to examine the changes in P fractions in a sandy loam soil induced by a range of low-molecular-weight organic acids and anions. Generally, the effectiveness of organic acids to mobilize P occurred in the order of tricarboxylic (tricarboxylate)>dicarboxylic (dicarboxylate)> monocarboxylic acid (monocarboxylate). Addition of organic acids and anions, especially citric acid and citrate significantly increased resin-P content. As the stability of P fractions increased, the effectiveness of organic acids and anions to mobilize the P fractions decreased, with no significant effects on Conc. HCl-P and Residual-P fractions. Both organic acids and H2SO4 appeared to be less effective on the solubilization of organic-P because of the relatively low organic-P content of the soil (30% of total-P). The pattern of P mobilization induced by organic acids was highly controlled by the intrinsic P status such as amounts and distributions of P fractions. Exudation of organic acids and organic anions increased the resin-P content which suggests that organic anions rather than rhizosphere acidification are more important for P solubility and availability for plant growth. These results indicate that root released organic acids and anions can increase the solubility of some of the more stable pools of soil P, which can be important for soil P availability and P losses from soil to water.
学科主题Microbiology
研究领域[WOS]Microbiology
关键词[WOS]LUPINUS-ALBUS L ; CITRIC-ACID ; RHIZOSPHERE ; PHOSPHATE ; MOBILIZATION ; CITRATE ; ACQUISITION ; EXUDATION ; FRACTIONS ; BEHAVIOR
收录类别SCI
资助信息National Natural Science Foundation of China[41001137, 41171216]; Open Foundation of LAPC, Institute of Atmospheric Physics, Chinese Academy of Sciences (CAS)[LAPC-KF-2009-05]; One Hundred-Talent Plan of CAS; CAS/SAFEA International Partnership Program for Creative Research Teams; Important Direction Project of CAS[KZCX2-YW-JC203]; Yantai Science and Technology Development Project[2011016, 2010245]; Yantai Double-hundred Talent Plan[XY-003-02]; Science and Technology Development Plan of Shandong Province[010GSF10208]
语种英语
WOS记录号WOS:000306317600029
公开日期2013-03-08
源URL[http://ir.yic.ac.cn/handle/133337/6061]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Shandong Prov Key Lab Coastal Environm Proc, Yantai 264003, Peoples R China
2.Qingdao Univ Sci & Technol, Inst Life Sci, Qingdao 266042, Peoples R China
3.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Ato, Beijing 100039, Peoples R China
4.China Agr Univ, Coll Sci, Yantai 264670, Peoples R China
5.Rothamsted Res, Okehampton EX20 2SB, Devon, England
推荐引用方式
GB/T 7714		 Xu Gang,Shao Hongbo,XuRongfu,et al. The role of root-released organic acids and anions in phosphorus transformations in a sandy loam soil from Yantai, China[J]. AFRICAN JOURNAL OF MICROBIOLOGY RESEARCH,2012,6(3):674-679.
APA Xu Gang.,Shao Hongbo.,XuRongfu.,Nie, Yuanyuan.,Pei, Yue.,...&Blackwell, M. S. A..(2012).The role of root-released organic acids and anions in phosphorus transformations in a sandy loam soil from Yantai, China.AFRICAN JOURNAL OF MICROBIOLOGY RESEARCH,6(3),674-679.
MLA Xu Gang,et al."The role of root-released organic acids and anions in phosphorus transformations in a sandy loam soil from Yantai, China".AFRICAN JOURNAL OF MICROBIOLOGY RESEARCH 6.3(2012):674-679.

入库方式： OAI收割

来源：烟台海岸带研究所

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