Abstract：
:A series of 21 N'-phenyl-N,N-disubstituted ureas was studied for its effects on thylakoidal electron transfer, photophosphorylation, and photosynthetic O2 evolution in class A chloroplasts and leaf fragments. The concentrations of test compounds that produced 50% inhibition of PS II electron transfer and of photosynthesis in class A chloroplasts were highly correlated. Urea derivatives with a N-lipophilic substituent (three or four carbon chains) were uncouplers (i.e., neburon uncoupled by 50% at 7 microM). The efficiency of inhibition of PS II electron transfer was increased by the presence of a 3,4-disubstitution of the phenyl ring. The presence of N-lipophilic substituents was necessary for there to be an inhibitory effect, but an increase in the length of the chain lowered the activity. The best QSAR equations that described the inhibitory activity of the whole series were obtained when using 1 chi v or MR (probably representing dispersion forces) associated with parameters that described the steric hindrance at the p position of the phenyl ring (Verloop's B2(4), B4(4)) or in its neighborhood (such as the angular parameter A4). The inhibitory efficiency of the phenylurea series on wheat and spinach pieces led to the conclusion that some extrachloroplastic factors seemed to limit the accessibility of the D1-protein target.
journal_name
Ecotoxicol Environ Safjournal_title
Ecotoxicology and environmental safetyauthors
Arnaud L,Taillandier G,Kaouadji M,Ravanel P,Tissut Mdoi
10.1006/eesa.1994.1040subject
Has Abstractpub_date
1994-07-01 00:00:00pages
121-33issue
2eissn
0147-6513issn
1090-2414pii
S0147-6513(84)71040-2journal_volume
28pub_type
杂志文章abstract：:Responses of Hypnum plumaeforme, Thuidium cymbifolium, and Plagiomnium cuspidatum to short-term (96 h) BDE-47 and BDE-209(0, 0.005, 0.05, 0.5, and 5 μM, respectively) stress were investigated. Both BDE-47 and BDE-209 increased the lipid peroxidation in the three moss species, malondialdehyde (MDA) content increased wi...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2019.06.044
更新日期：2019-10-15 00:00:00
abstract：:The adsorption of sulfamethoxazole (SMZ) and ketoprofen (KET) using carbon nanotubes (CNTs) and CNTs modified with ionic liquids (ILs) was investigated. Two ionic liquids (1-benzyl, 3-hexyl imidazolium, IL1 and 1-benzyl, 3-decahexyl imidazolium, IL2) were synthesized, and characterized by nuclear magnetic resonance (1...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2018.06.019
更新日期：2018-10-01 00:00:00
abstract：:Tourists visiting to endemic zones may acquire Enterotoxigenic Escherichia coli (ETEC) infection resulting into diarrhea due to consumption of contaminated potable waters. In this study, a qPCR assay (SYBR Green), targeting LT1 and ST1 genes was designed to quantify ETEC in potable waters derived from civic water supp...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2011.07.022
更新日期：2011-11-01 00:00:00
abstract：:The aim of this study was to evaluate antioxidative responses in roots, stem and leaves of four alfalfa cultivars to different concentrations of zinc (Zn) (0, 300, 600 and 900 μM) for 23 days. Among the four cultivars, Aohan displayed the highest Zn concentrations in tissues and the largest Zn amount in aerial parts. ...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2014.04.044
更新日期：2015-04-01 00:00:00
abstract：:Root induced changes are deemed to have an important role in the success of remediation techniques in contaminated soils. Here, the effects of two nano-particles [SiO2 and zeolite] with an application rate of 200mgkg-1, and two bacteria [Bacillus safensis FO-036b(T) and Pseudomonas fluorescens p.f.169] in the rhizosph...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2017.08.045
更新日期：2018-01-01 00:00:00
abstract：:To study the effects of inhaled NiO particles on alveolar macrophages and the humoral immune system, male Wistar rats were continuously exposed to NiO aerosols for 4 weeks and 4 months, respectively. Fractions of alveolar macrophages, granulocytes, and lymphocytes in lung lavages, number of polynucleated macrophages, ...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/0147-6513(84)90011-3
更新日期：1984-12-01 00:00:00
abstract：:The influence of tank-mix adjuvants on pesticide toxicity remains largely unknown. Agral 90, a nonylphenol polyethoxylated tank-mix adjuvant, has been used with diquat (bipyridylium herbicide) and fomesafen (diphenyl-ether herbicide) in aquatic indoor microcosms in order to compare the toxicity of the single compounds...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2008.08.001
更新日期：2009-03-01 00:00:00
abstract：:Cytochrome P450 enzymes (CYPs), encoded by Halloween genes, mediate the biosynthesis of molting hormone, ecdysteroids, in arthropods. In this report, the effect of heavy metal cadmium (Cd) stress on the expression of cytochrome P450 genes in the wolf spider Pardosa pseudoannulata was analyzed. The results showed the e...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2019.01.034
更新日期：2019-05-15 00:00:00
abstract：:Endocrine disrupting chemicals (EDC) are exogenous substances that can potentially mimic hormonal substances and cause adverse effects on the endocrine system of living beings. The behavior and fate of these compounds in the environment is directly related to their physical-chemical properties, which indicate great af...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2020.111574
更新日期：2021-01-15 00:00:00
abstract：:In this study, an AhR-responsive reporter-gene cell-based bioassay CALUX was used to assess the biological potency of dioxins and dioxin-like PCBs (dl-PCBs) in top soil samples collected from a former airbase (A-So) and remote regions from urban and agricultural areas in Thua Thien Hue, Vietnam. In top soil collected ...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2021.111971
更新日期：2021-01-26 00:00:00
abstract：:In a thirty-day inhalation study male Wistar rats were continuously exposed to submicron aerosols of three different cadmium compounds. The cadmium chloride (CdCl2) and cadmium oxide (CdO) aerosol concentrations were 0.1 mg/m3 Cd. Because of its lower solubility the cadmium sulfide (CdS) level was 1 mg/m3 Cd. For CdCl...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/0147-6513(86)90100-4
更新日期：1986-06-01 00:00:00
abstract：:Exposure to Bisphenol A (BPA) has been reported to dysregulate endocrine pathways in a wide array of vertebrate species. The effects of BPA on invertebrate species are less well understood. We tested the effects of BPA on growth and development in Drosophila as these processes are governed by well-studied endocrine pa...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2013.12.008
更新日期：2014-03-01 00:00:00
abstract：:Tephrosia vogelii Hook was excellent insecticidal plant, it was introduced into China and planted over a large area in Guangdong province. The main active components of T. vogelii was rotenone and it widely found in leaves and pods of T. vogelii. This paper study of the safety assessment of T. vogelii flowers to worke...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2019.109468
更新日期：2019-11-15 00:00:00
abstract：:Imidazolium-based ionic liquids (IL) with short-alkyl side chain such as 1-ethyl-3-methyl-imidazolium chloride ([Emim]Cl) and 1-butyl-3-methyl-imidazolium chloride ([Bmim]Cl) has immense application potential including in lignocellulosic bioenergy production. But they are toxic to most microorganisms, and those isolat...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2019.109634
更新日期：2019-11-30 00:00:00
abstract：:Phytoremediation is an ecologically sustainable method for remediating contaminated soils, however, research on phytoremediation and its mechanisms are still rarely reported. The highest dibutyl phthalate (DBP) dissipation rate was 91% in 0-3mm bok choy rhizosphere via a 45-day rhizo-box experiment, and bok choy could...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2019.05.073
更新日期：2019-10-15 00:00:00
abstract：:Sulfometuron-methyl is a broad-spectrum herbicide, used throughout Brazil; however, its environmental impacts in biochar (BC) amended soils is not fully understood. Biochar is known to enhance soil quality but can also have undesired effects such as altering the bioavailability and behavior of herbicides. Microbial co...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2020.111222
更新日期：2021-01-01 00:00:00
abstract：:Biosynthesis of metal nanoparticles is the present research in the limb of nanotechnology which reduces the toxicity of metal nanoparticles. Green chemistry approach emphasizes that the usage of plant material has offered a reliable, simple, nontoxic and eco-friendly that links Nanotechnology and Biotechnology. Increa...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2015.07.037
更新日期：2016-12-01 00:00:00
abstract：:Studies were made of heavy metal accumulation in aquatic macrophytes growing in streams and ponds around Wroclaw, Poland, partly affected by atmospheric pollution, effluents of chemical factories, and groundwater contaminated by slagdumps from a smelter and power station. The highest concentrations of Cd, Co, Cr, Cu, ...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1006/eesa.1996.0106
更新日期：1996-12-01 00:00:00
abstract：:Amaranthus mangostanus L. (amaranth) was hydroponically grown in different concentrations of biochar amended nutrient solution to investigate the mineral elements migration and physiological response of amaranth as affected by biochar. Our results showed that exposure to 26.6 g/L of biochar greatly increased the root ...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2019.03.039
更新日期：2019-07-15 00:00:00
abstract：:Studies on oxidative stress (OS) in crustacea are widely used as ecotoxicological indices to assess the environment risk produced by the impact of several stressor and pollutants. In the present study, effects of seasonality on OS physiology markers such as antioxidant enzymes (superoxide dismutase, catalase, glutathi...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2012.10.006
更新日期：2013-01-01 00:00:00
abstract：:Contaminant effects on species are generally assessed with single-species bioassays. As a consequence, interactions between species that occur in ecosystems are not taken into account. To investigate the effects of contaminants on interacting species dynamics, our study describes the functioning of a 2-L laboratory mi...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2016.02.008
更新日期：2016-06-01 00:00:00
abstract：:Arbuscular mycorrhizal (AM) fungi can protect plants against cadmium (Cd) stress, and are the most prominent symbiotic fungi for contribution to phytoremediation. However, the tolerance mechanism for AM symbiosis on Cd toxicity still remains unclear, especially the related molecular mechanisms. In this study, differen...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2018.12.093
更新日期：2019-04-30 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：:Mosquitoes are arthropods of huge medical and veterinary relevance, since they vector pathogens and parasites of public health importance, including malaria, dengue and Zika virus. Currently, nanotechnology is considered a potential eco-friendly approach in mosquito control research. We proposed a novel method of biof...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2016.06.021
更新日期：2016-10-01 00:00:00
abstract：:Present study explored the biosorption capacity of xanthated nano banana cellulose (XNBC) for Cd(II) from aqueous solution. The biosorbent containing sulfur-bearing groups have a high affinity for heavy metals. Sulfur can be considered as a soft ligand group having strong affinity for cadmium. In the present study, th...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2013.09.003
更新日期：2013-12-01 00:00:00
abstract：:In this study, using a natural and green protein R-phycoerythrin (R-PE) extracted from marine Porphyra yezoensis as the stabilizer and reducer, silver nanoparticles (AgNPs) were synthesized. Based on this, a highly sensitive and selective method for the detection of Cu2+ ions was developed using R-PE-AgNPs as fluoresc...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2018.10.102
更新日期：2019-01-30 00:00:00
abstract：:Present study described a magnetic adsorption and removal method with prepared magnetic core-shell Fe3O4@polyaniline microspheres for the removal of two typical BFRs, tetrabromobisphenol-A (TBBPA) and decabromodiphenyl ether (BDE-209) from water samples. Magnetic core-shell Fe3O4@polyaniline microspheres were prepared...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2019.109471
更新日期：2019-11-15 00:00:00
abstract：:With the development of industrial production and continuous demand for chemicals, a large volume of wastewater containing phenols was discharged into the aquatic environment. Moreover, chemical leakage further increased the emission of phenols into aquatic systems. Phenol and its methylated derivative (cresols) were ...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章,评审
doi：10.1016/j.ecoenv.2018.03.089
更新日期：2018-08-15 00:00:00
abstract：:During the past three decades, North Atlantic populations of dogwhelks have been severely reduced in numbers, due to imposex and female sterility caused by TBT. We examined the relationship between the known history of female sterility and the present genetic diversity (measured by five allozyme-loci) and phenotypic v...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章
doi：10.1016/j.ecoenv.2005.11.006
更新日期：2006-06-01 00:00:00
abstract：:Plastics and microplastics are ubiquitous contaminants in aquatic ecosystems. This critical review is the first attempt at analyzing sources, concentration, impacts and solutions of (micro)plastic litter in Portugal based on all currently available literature. We found that, besides sea-based sources (e.g. shipping, f...
journal_title：Ecotoxicology and environmental safety
pub_type： 杂志文章,评审
doi：10.1016/j.ecoenv.2020.110753
更新日期：2020-09-01 00:00:00
