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	Interactions between escherchia coli and the colloids of three variable charge soils and their effects on soil surface charge properties
	Liu, Zhao-Dong1,2; Hong, Zhi-Neng1; Li, Jiu-Yu1; Jiang, Jun1; Xu, Ren-Kou1
刊名	Geomicrobiology journal
	2015-07-03
卷号	32期号:6页码:511-520
关键词	E Coli adhesion K+ adsorption Surface charge Variable charge soil Zeta potential
ISSN号	0149-0451
DOI	10.1080/01490451.2014.967419
通讯作者	Xu, ren-kou(rkxu@issas.ac.cn)
英文摘要	The adhesion of escherchia coli (e. coli) to the colloids of three variable charge soils and its effect on surface charge properties and potassium adsorption of these soil colloids were investigated. the adhesion isotherms of e. coli by soil colloids can be described using the langmuir equation. the amount of e. coli adhered by the soil colloids varied with soil type and followed the order: ultisol from guangxi > oxisol from yunnan > ultisol from jiangxi. the iron and aluminum oxide contents and cecs of the soils are the important factors affecting the adhesion of e. coli to soil colloids. the relatively lower iron and aluminum oxide contents and higher cec of the ultisol from jiangxi led to the lower adhesion of e. coli to the soil colloids compared to the ultisol from guangxi and the oxisol from yunnan. the amount of e. coli adhered to the soil colloids decreased with increasing ph, which was consistent with the results predicted from the dlvo theory. e. coli adhesion made the zeta potential of the soil colloids more negative and reduced the isoelectric point of the soil colloids, suggesting that e. coli decreased the surface positive charge and increased negative charge of the soil colloids. in addition, e. coli adhesion increased k+ adsorption by the soil colloids. therefore, bacterial adhesion improves the fertility of variable charge soils by increasing soil cec because the cecs of variable charge soils are usually low.
WOS关键词	ELECTRICAL DOUBLE-LAYERS ; ATR-FTIR SPECTROSCOPY ; ESCHERICHIA-COLI ; CLAY-MINERALS ; FE/AL OXIDES ; PSEUDOMONAS-PUTIDA ; BACTERIAL ADHESION ; DLVO THEORY ; IRON-OXIDE ; PARTICLES
WOS研究方向	Environmental Sciences & Ecology ; Geology
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary
语种	英语
出版者	TAYLOR & FRANCIS INC
WOS记录号	WOS:000356789400004
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2376498
专题	中国科学院大学
通讯作者	Xu, Ren-Kou
作者单位	1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing, Jiangsu, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Liu, Zhao-Dong,Hong, Zhi-Neng,Li, Jiu-Yu,et al. Interactions between escherchia coli and the colloids of three variable charge soils and their effects on soil surface charge properties[J]. Geomicrobiology journal,2015,32(6):511-520.
APA	Liu, Zhao-Dong,Hong, Zhi-Neng,Li, Jiu-Yu,Jiang, Jun,&Xu, Ren-Kou.(2015).Interactions between escherchia coli and the colloids of three variable charge soils and their effects on soil surface charge properties.Geomicrobiology journal,32(6),511-520.
MLA	Liu, Zhao-Dong,et al."Interactions between escherchia coli and the colloids of three variable charge soils and their effects on soil surface charge properties".Geomicrobiology journal 32.6(2015):511-520.

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