Abstract：
:The reuse of polymyxin B (PMB) has attracted extensive attention. Although the resistance mechanism to PMB is clear, there are few reports on the regulation mechanisms and effects of clay minerals on bacteria induced by PMB. The focus of this study is to investigate the multidrug resistance, cell morphology and physiological modification of Escherichia coli (E. coli) exposed to PMB in the presence and absence of clay minerals. To be specific, E. coli was cultured serially for 15 days in the increasing concentration of PMB, with or without halloysite or kaolinite. The potential influence mechanisms of halloysite and kaolinite on E. coli was analyzed by proteomics, antibiotic resistance testing, confocal laser scanning microscopy, scanning electron microscopy and Fourier transform infrared. The results showed that kaolinite could obviously promote the growth of bacteria. Moreover, compared with halloysite, kaolinite could stimulate the overexpression of PMB resistance-related proteins ArnA, ArnB and EptA in E. coli exposed to PMB, and promote the synthesis of peptidoglycan and activate glycolysis pathway to produce energy. In contrast, halloysite was able to regulate the production of low molecular weight thiols by E. coli to prevent bacteria from producing excessive reactive oxygen species, activate the oxidative phosphorylation pathway to supply energy for bacterial life activities, and reduce multidrug resistance of E. coli in a variety of ways. These findings are essential for exploring the impacts of clay minerals on the emergence and spread of multi-drug resistant strains in the environment.
journal_name
Chemospherejournal_title
Chemosphereauthors
Liu J,Wu P,Wang F,Niu W,Ahmed Z,Chen M,Lu G,Dang Zdoi
10.1016/j.chemosphere.2020.129095subject
Has Abstractpub_date
2021-02-01 00:00:00pages
129095eissn
0045-6535issn
1879-1298pii
S0045-6535(20)33292-6journal_volume
265pub_type
杂志文章相关文献
CHEMOSPHERE文献大全abstract：:Wastewater treatment plants (WWTPs) are an important source of anthropogenic chemicals, including organic flame retardants (FRs). Limited studies indicate birds can be exposed to FRs by feeding from waters receiving WWTP effluent or in fields receiving biosolids. Expanding on our earlier study, 47 legacy and 18 new FR...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2017.12.037
更新日期：2018-03-01 00:00:00
abstract：:Algal bioassays and pesticide analysis were joined in Tuscany regional monitoring of surface and ground waters. Results were compared. Waters affected algal growth in any of the following ways: stimulation, inhibition, stimulation at low concentrations and inhibition at higher concentrations. Most of ground waters inh...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2004.07.012
更新日期：2005-02-01 00:00:00
abstract：:The amphipod Hyalella azteca was exposed for 28 d to different combinations of Zn contaminated sediment and food. Sediment exposure (+clean food) resulted in increased Zn body burdens, increased mortality and decreased body mass when the molar concentrations of simultaneously extracted Zn were greater than the molar c...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2011.11.066
更新日期：2012-03-01 00:00:00
abstract：:Used baby diaper consists of a combination of decomposable cellulose, non-biodegradable plastic materials (e.g. polyolefins) and super-absorbent polymer materials, thus making it difficult to be sorted and separated for recycling. Microwave pyrolysis was examined for its potential as an approach to transform used baby...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2019.05.054
更新日期：2019-09-01 00:00:00
abstract：:We assessed the levels of potentially toxic trace metals, Zinc (Zn), Lead (Pb), Manganese (Mn), Copper (Cu), Nickel (Ni), Chromium (Cr), Cobalt (Co), and Cadmium (Cd), in dust, hair, nail and serum, sampled in rural, urban and industrial areas of Punjab, Pakistan. Trace metals occurrence in all samples, in descending ...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2015.03.004
更新日期：2015-08-01 00:00:00
abstract：:China's urban and rural populations face very serious health risks from combustion particles. Major sources of exposure to inhalable particulates include the burning solid fuels (biomass and coal) for household cooking and heating, coal-fired industrial and residential boilers, tobacco smoking, and diesel motor vehicl...
journal_title：Chemosphere
pub_type： 杂志文章,评审
doi：10.1016/s0045-6535(02)00246-1
更新日期：2002-12-01 00:00:00
abstract：:With the principal aim to assess the typical Mediterranean profile of the PM2.5 and PM1 pollution, three intensive monitoring campaigns took place simultaneously within different types of environment across an urban location of the basin. Focusing on the PM components with numerous anthropogenic sources and increased ...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2019.125026
更新日期：2020-02-01 00:00:00
abstract：:Species sensitivity distributions (SSDs) are usually used in the development of water quality criteria and require a large number of toxicity values to define a hazard level to protect the majority of species. However, some toxicity data for certain chemicals are limited, especially for endangered and threatened speci...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2012.09.026
更新日期：2013-01-01 00:00:00
abstract：:Submerged macrophytes are considered the main primary producers in shallow lakes. Recently, they have experienced a decline due to increasing environmental impacts, e.g., excessive heavy metal loads. Compared to extensive studies on vegetative growth, reports on effects of heavy metals on propagule germination and rep...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2018.12.056
更新日期：2019-03-01 00:00:00
abstract：:Fish samples purchased from Japanese markets were analyzed for Dechlorane Plus (DP)(syn-, anti-), polybrominated diphenyl ether (PBDE), and hexabromocyclododecane (HBCD)(α, γ). Twenty fish were analyzed using gas chromatography-mass spectrometry for DP and PBDE, and using liquid chromatography-tandem mass spectrometry...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2012.05.072
更新日期：2012-10-01 00:00:00
abstract：:Evaluation of adsorption performance of several industrially manufactured pectins towards some toxic heavy metals was carried out. Adsorption isotherms for divalent cations in simulant aqueous solutions were measured and corresponding distribution coefficients were calculated. The following selectivity sequences we fo...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/s0045-6535(98)00466-4
更新日期：1999-05-01 00:00:00
abstract：:Thirteen paddy soil profiles and river sediments which are sources of irrigation water were collected around the Taihu Lake, and the trace elements were estimated. The content of La and Ce in paddy soil and sediment were 39.3 and 68.6 mg/kg soil and 36.9 and 65.1 mg/kg soil, being within the range of background values...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/s0045-6535(02)00209-6
更新日期：2003-02-01 00:00:00
abstract：:Implantable and stretchable electrodes have managed to progress the medical field from a medical diagnosis aspect to a patient treatment level. They offer the ability to detect biosignals and conduct electrical current to tissues that aid in muscle stimulation and axon regeneration. Current conventional electrodes are...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2021.129680
更新日期：2021-01-18 00:00:00
abstract：:This study focused on an estuarine wildlife species exhibiting high site fidelity and ubiquitous distribution in coastal environments along the Atlantic and Gulf coasts of the United States to monitor per- and polyfluoroalkyl substances (PFAS). A total of 75 diamondback terrapin (Malaclemys terrapin) plasma samples we...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2018.10.023
更新日期：2019-01-01 00:00:00
abstract：:Halonitromethanes (HNMs) as one typical class of nitrogenous disinfection byproducts in drinking water and wastewater are receiving attentions due to their high toxicity. This study applied a simulator of the human gastrointestinal tract to determine the dehalogenation processes of trichloronitromethane, bromonitromet...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2018.08.039
更新日期：2018-11-01 00:00:00
abstract：:Quantitative structure-property relationship (QSPR) models which predict hydroxyl radical rate constants (kOH) for a wide range of emerging micropollutants are a cost effective approach to assess the susceptibility of these contaminants to advanced oxidation processes (AOPs). A QSPR model for the prediction of kOH of ...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2015.05.034
更新日期：2015-11-01 00:00:00
abstract：:Eutrophication has decreased the O(2) content and increased the NH(4)(+) availability in freshwaters. These changes may affect carbon and nitrogen transformation processes and the production of CH(4) and N(2)O, which are important greenhouse gases. We studied release of CH(4) and N(2)O from a eutrophic lake sediment u...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/S0045-6535(03)00224-8
更新日期：2003-09-01 00:00:00
abstract：:Old glassworks sites have been always associated with contamination by different trace elements like Pb, Cd, As, Zn and others. The mixture of soil and waste glass of particle sizes <2 mm at one of the oldest Swedish glassworks (the Pukeberg) was studied by analyzing the trace elements content, organic content (3.6%) ...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2017.12.142
更新日期：2018-03-01 00:00:00
abstract：:Twenty-three barbels (Barbus graellsii), 30 bleaks (Alburnus alburnus) and 4 sediment samples were collected from four areas of the Cinca River (NE Spain), upstream and downstream of a mercury cell chlor-alkali plant. Mercury concentration in sediments downstream of the plant was about 25 times higher than the concent...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2006.07.053
更新日期：2007-01-01 00:00:00
abstract：:Horseradish peroxidase was immobilized by bioaffinity layering and used for the treatment of wastewater containing p-chlorophenol. For this purpose, lectin Concanavalin A was bound to Sephadex beads. The glycoenzyme peroxidase was layered upon this Con A layer. Subsequently, alternate layers of the enzyme and Con A we...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2006.10.043
更新日期：2007-03-01 00:00:00
abstract：:The growth of microplastic (MP) pollution is of increasing concern and represents a global challenge. In situ detection of these small particles is difficult because of their sizes, shapes, transparency or translucency, surface texture and ambient conditions. We propose and demonstrate the use of a prototype optical s...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2020.126789
更新日期：2020-09-01 00:00:00
abstract：:Point measurements of time-resolved LII signals have been performed in sooting premixed low pressure flames. Soot particle size distribution and gas temperature in these flames are known from independent measurements. This data is used to validate parameters of an improved LII model, where special emphasis is taken on...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/S0045-6535(02)00719-1
更新日期：2003-06-01 00:00:00
abstract：:Pentachlorophenol (PCP) contamination is a severe environmental problem due to its widespread occurrence, toxicity and recalcitrance. In order to gain a better understanding of the fate of PCP in soils, the role of the soil organic matter (SOM) and clay minerals in the PCP sorption-desorption was studied on two bulk f...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2006.01.017
更新日期：2006-08-01 00:00:00
abstract：:Conventional target analysis of biological samples such as blood limits our ability to understand mixture effects of chemicals. This study aimed to establish a rapid passive sampling technique using the polymer polydimethylsiloxane (PDMS) for exhaustive extraction of mixtures of neutral organic chemicals accumulated i...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2015.05.055
更新日期：2015-11-01 00:00:00
abstract：:While large quantities of studies on microplastics in the marine environment have been widely carried out, few were available in the freshwater environment. The occurrence and characteristics, including composition, abundance, surface texture and interaction with heavy metals, of microplastics in the surface sediments...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2016.12.074
更新日期：2017-03-01 00:00:00
abstract：:We assessed the biodegradation of a typical oily sludge waste (PB401) in Mexico using several regimes of indigenous microbial consortium and relevant bioremediation strategies in slurry-phase system. Abiotic loss of total petroleum hydrocarbons (TPH) in the PB401 was insignificant, and degradation rates under the vari...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2007.06.017
更新日期：2008-01-01 00:00:00
abstract：:Due to the growing concern of highly contaminated landfill leachate problems in Taiwan, an innovative advanced catalytic oxidation (FeGAC/H(2)O(2)) process was developed and employed in this research to treat the landfill leachate from central Taiwan. Experimental results indicated that the FeGAC/H(2)O(2) process coul...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2006.09.075
更新日期：2007-04-01 00:00:00
abstract：:Carbon isotope fractionation was observed during dechlorination of 1,2,3,4-tetrachlorodibenzo-p-dioxin (1,2,3,4-TeCDD) by a mixed culture containing Dehalococcoides ethenogenes strain 195. Fractionation was examined when 1,2,3,4-TeCDD was added as the only chlorinated compound and when 1,2,3,4-TeCDD was added with a k...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2010.06.027
更新日期：2010-08-01 00:00:00
abstract：:Risk assessment of toxic substances under ecologically-relevant scenarios which include the presence of natural stressors is essential to understand their indirect toxic effects and to improve prediction of the impacts of contamination on community structure and ecosystem function. Here, we study the effects of the pe...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2009.10.066
更新日期：2010-01-01 00:00:00
abstract：:A comparative study on denitrifying sludge granulation with different electron donors (sulfide, thiosulfate and organics) was carried out. Longer time was spent on sulfide-denitrifying granular sludge (DGS) cultivation (88 days) than thiosulfate- and organics-DGS cultivations (57 days). All the three DGS were characte...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2017.07.106
更新日期：2017-11-01 00:00:00
