Adsorption of Pseudomonas putida on clay minerals and iron oxide
Adsorption of Pseudomonas putida on clay minerals and iron oxide
复制标题
恶臭假单胞菌对粘土矿物和氧化铁的吸附
DOI：
10.1016/j.colsurfb.2006.10.030
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发表时间：
2007-02-15
影响因子：
5.8
通讯作者：
Chen, W.
中科院分区：
文献类型：
--
作者：
Jiang, D.;Huang, Q.;Chen, W.
研究了恶臭假单胞菌在蒙脱石、高岭石和针铁矿上的吸附。Putida在供试矿物上的吸附等温线符合Langmuir方程。吸附恶臭假单胞菌量的大小顺序为针铁矿>高岭石>蒙脱石。在15 ~ 35 ℃的温度范围内，恶臭假单胞菌对矿物的吸附程度较大。在pH 3.0 ~ 10.0范围内，恶臭假单胞菌对矿物的吸附随pH的升高而降低。镁离子比钠离子更能促进Putida在矿物上的吸附。结果表明，静电相互作用在土壤胶体颗粒吸附Putida中起着重要作用。本研究所获得的信息对于了解细菌在土壤系统中的生存和迁移具有重要意义。(C)2006 Elsevier B. V.保留所有权利。
Adsorption of Pseudomonas putida on minerals including montmorillonite, kaolinite and goethite was studied. The adsorption isotherms of P Putida on the examined minerals conformed to the Langmuir equation. The amount of P. putida adsorbed followed the order: goethite > kaolinite > montmorillonite. A greater extent of P putida adsorption on minerals was observed in the range of temperature from 15 to 35 degrees C. The adsorption of P. putida on minerals decreased with the increase of pH from 3.0 to 10.0. Magnesium ion was more efficient than sodium ion in promoting P putida adsorption on minerals. The results suggest that electrostatic interactions play a vital role in P putida adsorption by soil colloidal factions. The information obtained in this study is of fundamental significance for the understanding of the survival and transport of bacteria in soil systems. (C) 2006 Elsevier B.V. All rights reserved.