Abstract：
:The effect of 2,4-dichlorophenoxyacetic (2,4-D) acid in artificial rain at pH 3.3 was examined for young plants of rape (Brassica napus L.) and white mustard (Sinapis alba L.). Plants were treated in a closed simulation chamber system with varying CO2 supply (198-418 ppm). Single or daily showers were applied for 20-30 min at varying 2,4-D concentrations (0, 0.03, 0.1, 0.5, and 2.5 mg liter-1). The plants were sampled 5 days after the last treatment. Epinasty was observed for Brassica at 0.5 mg liter-1 and for Sinapis at 0.1 mg liter-1 2,4-D. Leaf to stem dry weight ratios increased with increasing CO2 concentrations in the air and decreased following single treatments with 0.5 or 2.5 mg liter-1 2,4-D in the rain. Dose-effect relationships are proposed for both plant species. Leaf dry matter weights per area unit decreased with increasing CO2 concentrations, but were not significantly affected by the 2,4-D treatments.
journal_name
Ecotoxicol Environ Safjournal_title
Ecotoxicology and environmental safetyauthors
Løkke Hdoi
10.1016/0147-6513(84)90002-2subject
Has Abstractpub_date
1984-08-01 00:00:00pages
328-38issue
4eissn
0147-6513issn
1090-2414pii
0147-6513(84)90002-2journal_volume
8pub_type
杂志文章abstract：:Metals are widespread pollutants in the environment which have been reported to be associated with kidney dysfunction in many existing epidemiological studies. However, most of the studies are cross-sectional design and mainly focus on several toxic metals including arsenic, lead and cadmium. Therefore, we conducted t...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2019.110006
更新日期：2020-02-01 00:00:00
abstract：:Using semiempirical quantum chemical descriptors, by partial least squares (PLS) regression, quantitative structure-property relationships (QSPRs) were established for direct photolysis quantum yields (Phi) and rate constants (k) of polybrominated diphenyl ether congeners dissolved in water/methanol and methanol solut...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2006.01.003
更新日期：2007-03-01 00:00:00
abstract：:Twenty-three chlorinated monophenols were investigated for their uncoupling and inhibitory properties on plant mitochondria. All the studied compounds had uncoupling properties but their activity was submitted to quantitative changes from 1- to 400-fold, according to the substitution. They also had inhibitory properti...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/0147-6513(85)90048-x
更新日期：1985-06-01 00:00:00
abstract：:This is the first report of isolation of Pseudomonas pickettii from a normal adult bovine duodenum. This organism was one of several bacteria isolated as part of a study to examine cadmium resistance genes (cad(r)) for use in generating transgenic plants to reclaim cadmium-contaminated soils in Kansas. P. pickettii co...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/s0147-6513(02)00076-3
更新日期：2003-03-01 00:00:00
abstract：:Electrophoretic analysis of Littorina littorea esterases indicated the presence of a cathodal migration isoenzyme (EST-C), which was identified in extracts obtained from the gonad-digestive gland complex. A loss of EST-C enzyme activity was observed in individuals exposed to Cd2+. This loss of activity was complete in...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1006/eesa.1998.1710
更新日期：1998-11-01 00:00:00
abstract：:To enrich the understanding of the complex environmental system of soil and microorganisms in gold tailings, we studied the effects of environmental factors on the microbial community diversity in gold mine tailing soil in Beijing, and the strains screened from the soil with serious mercury (Hg) pollution. The results...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2018.09.011
更新日期：2018-12-15 00:00:00
abstract：:Heavy metals are ubiquitous environmental pollutants, and their toxic effects have been widely studied. However, their transgenerational effects between parent and progeny at environmental relevant concentrations need further investigations. Currently, L3 stage of Caenorhabditis elegans was exposed to aqueous metals (...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2012.11.012
更新日期：2013-02-01 00:00:00
abstract：:In this study, five carbamate insecticides were subjected to 96 h acute toxicity tests to examine their effects on three cyanobacteria, Anabaena flos-aquae, Microcystis flos-aquae, and Mirocystis aeruginosa, and five green algae, Selenastrum capricornutun, Scenedesmus quadricauda, Scenedesmus obliquus, Chlorella vulga...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2004.12.002
更新日期：2006-02-01 00:00:00
abstract：:Regional haze episode has already caused overwhelming public concern. Unraveling the health effects of the representative composition mixtures of atmospheric fine particulate matters (PM2.5) becomes a top priority. In this study, a novel computational solution integrating chemical-induced genomic residual effect predi...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2018.12.010
更新日期：2019-04-15 00:00:00
abstract：:The ecotoxicological effect expressed as mortality of four metal ions (Cd, Cu, Zn, Al) and their associations on winter third- to fourth-instar larvae of Chironomus plumosus was determined. The effect of individual metals was introduced as acute toxicological effect and expressed as LC(50) and LC95 values with 95% int...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1006/eesa.2000.1980
更新日期：2001-01-01 00:00:00
abstract：:We investigated the effect of clay content on the bioavailability of copper to the earthworm Eisenia fetida, in the laboratory for 28 days using OECD artificial soil adjusted to 5%, 20% and 40% clay. Mortality, growth, cocoon production and internal copper concentrations were assessed in worms, and total, DTPA and CaC...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2009.03.017
更新日期：2010-03-01 00:00:00
abstract：:Changes in the activity of antioxidant enzymes including superoxide dismutase (SOD) and peroxidase (POD) and in the content of soluble protein (SP) in Nereis diversicolor exposed to cadmium (Cd) and petroleum hydrocarbons (PHCs) were investigated under a laboratory condition. The results indicated that SOD activity in...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2007.04.014
更新日期：2008-05-01 00:00:00
abstract：:Coal excavation and refinement processes generate substantial volumes of contaminated effluent that may be detrimental to aquatic ecosystems. As such, understanding the impacts of coal mine water releases on aquatic animals and ecosystems is essential for effectively managing and protecting neighboring environments. S...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2016.03.003
更新日期：2016-07-01 00:00:00
abstract：:The cardio-respiratory function, oxidative stress and fish antioxidants were analyzed in juvenile Nile tilapia exposed for 96 h to a sublethal trichlorfon (TRC-Neguvon, Bayer) concentration of 0.5 mg L(-1). The exposure to TRC induced oxidative stress in the heart, as manifested by the glutathione S-transferase deplet...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2008.11.003
更新日期：2009-07-01 00:00:00
abstract：:The objective of this study was to examine the toxic effects of dietary cadmium (Cd) on bank voles, being the F1 offspring of a wild-caught population. For 6 weeks, the rodents were provided with diets containing 0.05 (control), 40, 80, and 120 microg Cd/g dry wt of diet under moderate (12 h) and long (16 h) photoperi...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/S0147-6513(03)00109-X
更新日期：2004-05-01 00:00:00
abstract：:A single antimitotic dose of colchicine administered 24 hr after a single ip dose of CCl4 profoundly enhanced lethality in the adult Sprague-Dawley male rat from < 10% to over > or = 70% within the next 24 hr. These findings suggest that disruption of normal hepatic cellular repair processes is a critical factor affec...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1006/eesa.1994.1010
更新日期：1994-02-01 00:00:00
abstract：:The water flea (Daphnia magna) was used as a sensitive indicator for assessing the toxicity due to synthetic detergents. Acute and chronic toxicity of detergents to the water flea was studied under laboratory conditions by following the median tolerance limit (TLM) at 48 hr and the rate of survival. A significant decr...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/0147-6513(84)90065-4
更新日期：1984-10-01 00:00:00
abstract：:This paper presents the adaptation of Escherichia coli Gram-negative bacteria to increased concentrations of ionic liquids. Theophylline-based quaternary ammonium salts were used as an example of an ionic liquid that on the one hand includes an anion of natural origin and on the other hand is characterized by amphiphi...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2018.08.048
更新日期：2018-11-30 00:00:00
abstract：:By testing time-dependent IC50 of luteolin against Microcystis growth, this study revealed 6.5 mg/L as nearly IC50 value during prolonged stress until day 14, and explored chlorophyll-a (CLA) and phycobiliproteins (PBPs) contents, antioxidant responses and microcystin (MC)-production/-release dynamics at rising luteol...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2020.110540
更新日期：2020-06-15 00:00:00
abstract：:Water pollution has become a growing threat to human society and natural ecosystems in recent decades, increasing the need to better understand the spatial and temporal variabilities of pollutants within aquatic systems. This study sampled water quality at 12 sampling sites from October 2006 to August 2008 in the Jins...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2009.11.007
更新日期：2010-07-01 00:00:00
abstract：BACKGROUND:Bisphenol A (BPA) is a well-known xenobiotic endocrine disrupting chemical, with estrogenic activity and many other potential biological effects. Although multiple toxicities have been reported for BPA, molecular mechanisms underlying the transgenerational toxic effects of BPA are still underestimated. METH...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2020.111165
更新日期：2020-12-01 00:00:00
abstract：:Triclosan (TCS) is a biocide commonly used in household and personal care items to prevent the microbial growth and is currently considered as an emerging pollutant. It has a ubiquitous distribution which can substantially contribute towards antimicrobial resistance. The present study was designed to evaluate the effe...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2019.05.010
更新日期：2019-09-30 00:00:00
abstract：:Larval stages of the midge, Chironomus decorus, were used to define the bioaccumulation of sediment-sorbed mono-, di-, tri-, and hexachlorobenzene. Larvae were exposed to high- and low-organic-content sediments that had been equilibrated with individual radiolabeled chlorobenzenes prior to testing. Equilibrium or none...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/0147-6513(88)90076-0
更新日期：1988-04-01 00:00:00
abstract：:Experimental bioassays are currently used in ecotoxicology and environmental toxicology to provide information for risk assessment evaluation of new chemicals and to investigate their effects and mechanisms of action; in addition, ecotoxicological models are used for the detection, control, and monitoring of the prese...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2003.09.001
更新日期：2004-05-01 00:00:00
abstract：:Seasonal variations of polycyclic aromatic hydrocarbons (PAHs) in the surface sediments from 13 rivers in hilly regions of southern China were studied. Concentrations of PAHs analyzed in the wet season were higher than those analyzed in the dry season, with residues ranging from 74.3 to 1930.9 ng g-1 dw in the wet sea...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2018.03.004
更新日期：2018-07-30 00:00:00
abstract：:Airborne fine particulate matter PM2.5 was collected from May 2010 to December 2012 at Agra, a semi-urban site in north-central India. PM2.5 samples were chemically characterized for 16 polycyclic aromatic hydrocarbons by gas chromatography. PM2.5 values varied between 8.4 and 300 µg m(-3) with 55% of the values excee...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2015.01.006
更新日期：2015-04-01 00:00:00
abstract：:Natural species are widely used as indicator organisms to estimate of the impact of environmental pollution. Here we present the results of first study of a reliability of parthenogenetic Darevskia аrmeniaca and bisexual Darevskia raddei rock lizards as sentinels for monitoring of environmental genotoxicity. The comet...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2018.02.025
更新日期：2018-06-15 00:00:00
abstract：:Polychlorinated biphenyl (PCB) pollution from shipbuilding in Nagasaki Bay, Japan, was discussed by determining PCB concentrations in sediment, in water, and in biological samples. PCBs were detected in all samples, in which much higher concentrations, more than 10 micrograms/g, were found in three sediment samples wh...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/0147-6513(83)90089-1
更新日期：1983-10-01 00:00:00
abstract：:Zinc oxide (ZnO) nanoparticles (NPs) are widely used in daily life. However, common utilization of ZnO NPs results in increases in environmental release, and their health hazards have attracted extensive attention. To investigate the cytotoxicity of ZnO NPs and their mechanism in HepG2 cells, a comprehensive analytica...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2018.12.096
更新日期：2019-04-30 00:00:00
abstract：:Biotechnology is considered as a promising technology for the removal of polycyclic aromatic hydrocarbons from the environment. Free bacteria are often sensitive to some biotic and abiotic factors in the environment to the extent that their ability to effect biodegradation of organic pollutants, such as polycyclic aro...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2016.11.019
更新日期：2017-04-01 00:00:00
