Abstract：
:Human activities have caused increasing inputs of pharmaceuticals to the environment and diclofenac (DF) is one of the most commonly detected in freshwater systems. The aim of this study was to determine the impact of DF on a freshwater green alga as a non-target organism. For DF toxicity evaluation, its effects on a model organism Chlamydomonas reinhardtii were compared with effects caused by the herbicide atrazine (AT). EC50 values were about 135 mg/L for DF and 78 mg/L for AT, respectively. Both toxicants enhanced H2O2 production by the cells (144% and 178% of control for AT and DF, respectively) and stimulated catalase activity (≈200% of control). Activity of ascorbate peroxidase was elevated in AT-cells but not in DF-treated cells. DF did not influence dark respiration of the cells, whereas AT inhibited this process by about 50% compared to the control. Both toxicants caused photosynthesis inhibition. Analysis of parameters of chlorophyll a fluorescence in vivo showed diminishment of a performance index (PI) in both DF- and AT-treated cells (≈50% of control), but the reasons for the changes detected were different. AT diminished the efficiency of electron transport between PS II and PS I without significant inhibition of PS II or PS I reaction centers (RCs). In contrast to AT, DF seemed to influence directly PS II RCs. The fraction of active PS II RCs was lowered in DF-treated cells, but energy flux per active RC increased. Our study indicates that DF phytotoxicity results mainly from photosynthesis inhibition due to "silencing" of a fraction of PS II RCs.
journal_name
Chemospherejournal_title
Chemosphereauthors
Majewska M,Harshkova D,Guściora M,Aksmann Adoi
10.1016/j.chemosphere.2018.06.156subject
Has Abstractpub_date
2018-10-01 00:00:00pages
989-997eissn
0045-6535issn
1879-1298pii
S0045-6535(18)31231-1journal_volume
209pub_type
杂志文章相关文献
CHEMOSPHERE文献大全abstract：:This study aimed to investigate the adsorption behavior of phthalate esters (PAEs) in the clay layer of JiangHan Plain, China, so as to make better understanding about the source and control of PAEs in groundwater. Adsorption kinetics, isotherms, and miscible displacement experiments were conducted, and different mode...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2013.04.026
更新日期：2013-09-01 00:00:00
abstract：:Sediment cores and bottom water samples from across the Baltic Sea region were analyzed for freely dissolved concentrations (Cfree), total sediment concentrations (CT) and the dissolved aqueous fraction in water of seven indicator PCBs. Ex-situ equilibrium sampling of sediment samples was conducted with polydimethylsi...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2017.10.073
更新日期：2018-01-01 00:00:00
abstract：:Remediation of polluted groundwater often requires oxygen delivery into subsurface to sustain aerobic bacteria. Air sparging or injection of oxygen containing solutions (e.g., hydrogen peroxide) into the subsurface are common. In this study visible light was delivered into the subsurface using radially emitting optica...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2017.12.089
更新日期：2018-03-01 00:00:00
abstract：:In this study, we used a 1H NMR based metabolomics strategy combined with gene expression analysis to determine the combined effects of gestational exposure of mice to BPA (10 μg/kg body weight by subcutaneous injection) and arsenic (10 ppb sodium arsenite in drinking water). Results showed that exposure to either BPA...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2018.07.094
更新日期：2018-11-01 00:00:00
abstract：:Rare earth elements (REEs) are essential in high technology industries and have great economic value. The monitoring of REEs concentrations in rocks from oil well drill cuttings is critical to avoid environmental contamination and evaluate new sources of these elements. However, information is scarce about the REEs co...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2020.127984
更新日期：2021-01-01 00:00:00
abstract：:Bioaccumulation of mercury in freshwater fish is a complex process driven by environmental and biological factors. In this study, we assessed mercury in fish from four tributaries to the Red Deer River, Alberta, Canada, which are characterized by high surface water mercury concentrations. We used carbon (δ13C) and nit...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2020.128059
更新日期：2021-01-01 00:00:00
abstract：:Little is known about how the growth of trihalomethanes (THMs) in drinking water is affected in copper pipe. The formation of THMs and chlorine consumption in copper pipe under stagnant flow conditions were investigated. Experiments for the same water held in glass bottles were performed for comparison. Results showed...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2007.01.082
更新日期：2007-08-01 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：:Human exposure to insoluble and soluble nickel compounds is extensive. Besides wide usage in many industries, nickel compounds are contained in cigarette smoke and, in low levels, in ambient particulate matter. Soluble nickel particulate, especially nickel sulfate (NiSO(4)), has been associated with acute lung injury....
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/S0045-6535(02)00710-5
更新日期：2003-06-01 00:00:00
abstract：:Azoxystrobin and pyraclostrobin are broad spectrum strobilurin fungicides that have been measured in the aquatic environment. Strobilurins inhibit mitochondrial respiration by binding to the mitochondrial respiratory complex III. The goal of this study was to investigate mitochondrial dysfunction and oxidative stress ...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2019.124980
更新日期：2020-02-01 00:00:00
abstract：:Widely used conazole fungicides (CFs) belong to the most frequently detected pesticides in Central European arable soils. However, data on their environmental behaviour and bioavailability to soil organisms are surprisingly scarce. In the present laboratory microcosm study prochloraz, tebuconazole, epoxiconazole and f...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2020.127612
更新日期：2021-01-01 00:00:00
abstract：:Chemical speciation of Al, Cr, Cu, Fe, Hg, Mn, Ni, Pb, Sb and Zn in two typical (210)Pb-dated sediment cores (i.e., the CJ03 site and CJ06 site) in the Yangtze Estuary was investigated to reveal their different responses to upstream hydrological events. Cluster analysis and correlation analysis (CA) demonstrated that ...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2014.01.034
更新日期：2014-07-01 00:00:00
abstract：:Cytochrome P450 (CYP450) is a hemoprotein superfamily, among which CYP1, CYP2 and CYP3 play a major role in the metabolism of vast array of xenobiotics and endobiotics. This paper reports on three CYP enzyme variants (CYP1A2, CYP2E1 and CYP3A4) in three species of earthworm (Eisenia fetida, Metaphire guillelmi and Amy...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2016.12.052
更新日期：2017-03-01 00:00:00
abstract：:A greenhouse study examined plant uptake of phenanthrene and pyrene, as representatives of polycyclic aromatic hydrocarbons (PAHs), from an aqueous solution containing a nonionic surfactant Tween 80. The uptake was conducted with 1.0 mg l(-1) phenanthrene and 0.12 mg l(-1) pyrene under a wide range of Tween 80 concent...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2008.02.032
更新日期：2008-06-01 00:00:00
abstract：:The urinary metabolites of n-nonane in male Fischer 344 rats, after administering the hydrocarbon by gavage, included gamma-valerolactone, delta-hexanolactone, 2,5-hexanedione, delta-heptanolactone, 1-heptanol, 2-nonanol, 3-nonanol, 4-nonanol, 4-nonanone and 5-methyl-2-(3-oxobutyl)furan. Metabolism strongly favored th...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/0045-6535(95)00137-w
更新日期：1995-07-01 00:00:00
abstract：BACKGROUND:Several reports indicate that women who smoke have an increased risk of failure to conceive compared with their non-smoker counterparts. Here, we assessed the effect of smoking during the Assisted Reproduction Therapy (ART) on a potential marker of ovarian reserve, anti-müllerian hormone (AMH) in the follicu...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2012.02.054
更新日期：2012-07-01 00:00:00
abstract：:The present study was to isolate and identify a potent algicidal compound from extract of Salvia miltiorrhiza and study the potential inhibition mechanism on Microcystis aeruginosa. Column chromatography and bioassay-guided fractionation methods were carried out to yield neo-przewaquinone A, which was identified by sp...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2013.05.068
更新日期：2013-10-01 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：:Little is known about the interaction of the soil's physicochemical environment and livestock slurry throughout the soil profile. In this study, five soil layers (2-6, 6-10, 10-14, 14-18, 18-22 cm) amended with a<45 microm slurry fraction (FS) or water (control) were incubated for 58 d at 20 degrees C to determine the...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2010.06.049
更新日期：2010-09-01 00:00:00
abstract：:A series of aromatic heterocyclic and hydrocarbon compounds were tested for toxicity and biotransformation potential against two contrasting lux-marked whole-cell microbial biosensors. Toxicity was determined by inhibition of light output of a Pseudomonas fluorescens construct that expresses lux constitutively. Biotra...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/s0045-6535(00)00178-8
更新日期：2001-03-01 00:00:00
abstract：:The presence of organically bound halogens in precipitation was studied by first adsorbing organics on activated carbon and then analysing the chloride, bromide and iodide formed during combustion of the carbon. A standard instrument for the group parameter AOX (adsorbable organic halogens) was used for the combustion...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/s0045-6535(98)00217-3
更新日期：1999-02-01 00:00:00
abstract：:We calculated the sensitivity of Galician forest soils to eutrophication caused by atmospheric deposition of nitrogen compounds, using the Simple Mass Balance (SMB) method as described by [Posch, M., de Vries, W., Hettelingh, J.-P., 1995. Critical loads of sulphur and nitrogen. In: Posch, M., de Smet, P.A.M., Hettelin...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2005.08.072
更新日期：2006-06-01 00:00:00
abstract：:Semi-domesticated reindeer and wild moose meat samples were analyzed for polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), and polychlorinated biphenyls (PCBs). Both calves and adults were studied. Individual reindeer and moose meat samples and pooled reindeer calf meat samples were collected from the nor...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2009.01.013
更新日期：2009-05-01 00:00:00
abstract：:The metabolism of the environmental estrogen bisphenol A (BPA) was studied in heterotrophic plant cell suspension cultures of soybean (Glycine max), wheat (Triticum aestivum), foxglove (Digitalis purpurea), and thorn apple (Datura stramonium), which were regarded as metabolic model systems for intact plants. Three mai...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/s0045-6535(02)00142-x
更新日期：2002-10-01 00:00:00
abstract：:In the present research mortar pastes obtained by replacing a commercial cement with the equivalent mass of 5, 10, 20 and 30 wt.% of fly ash or bottom ash from fir chips combustion, were prepared and rheologically characterized. It was observed that the presence of ash modifies their rheological behaviour with respect...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2011.06.070
更新日期：2011-10-01 00:00:00
abstract：:Neonicotinoid insecticides (NEOs) are widely used in agricultural production processes in China and worldwide. NEOs have been an increasing concern because of their potential toxicity to nontarget organisms. However, studies that focused on human exposure to NEOs in China are limited. In this study, levels of six pare...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2020.128498
更新日期：2021-02-01 00:00:00
abstract：:Sediment samples from major agricultural producing areas in Edo state Nigeria were analysed for α-HCH, γ-HCH, β-HCH and ∑DDT with the aim of elucidating contamination profiles, distribution characteristics, carcinogenic and non-carcinogenic risk of these compounds in these regions. Analysis was done using a gas chroma...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2015.09.108
更新日期：2016-02-01 00:00:00
abstract：:The occurrence of free and conjugated estrogens was examined in a survey of eleven sewage treatment plants (STPs) and their discharge water in the United Kingdom using grab sampling. The STPs included trickling filter with and without tertiary treatment, and activated sludge with tertiary treatment. For three activate...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2010.11.040
更新日期：2011-02-01 00:00:00
abstract：:This study evaluated the impact of medium-term exposure to elevated pCO(2) levels (750-1200 ppm) on the physiological processes of juvenile Mytilus chilensis mussels over a period of 70 d in a mesocosm system. Three equilibration tanks filled with filtered seawater were adjusted to three pCO(2) levels: ~380 (control),...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2012.09.063
更新日期：2013-01-01 00:00:00
abstract：:The fate of spiked anthracene, pyrene and benzo[a]pyrene in soil with or without sewage sludge compost was assessed during a 6-month bioremediation process simulating landfarming. Bioassays and physico-chemical analyses were employed to monitor toxicity change in soil samples and elutriates through ten sampling campai...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2006.03.065
更新日期：2006-11-01 00:00:00
