Abstract:
:Sub-individual biomarkers are sub-lethal biological responses commonly used in the assessment of wildlife exposure to environmental contaminants. In this study, we examined the activity of glutathione-s-transferase (GST) and lactate dehydrogenase (LDH), and metallothionein (MT) concentrations among captive-raised alligator hatchlings, wild-caught juveniles, and wild-caught adults. Juveniles and adults were collected from three locations in Florida (USA) with varying degrees of contamination (i.e. Lake Apopka (organochlorine polluted site), Merritt Island National Wildlife Refuge (NWR) (metal polluted site), and Lake Woodruff NWR (reference site)). We examined whether changes in the response of these three biomarkers were age and sex dependent or reflected site-specific variations of environmental contaminants. Juvenile alligators from Merritt Island NWR had higher MT concentrations and lower GST activity compared to those from the other two sites. This outcome was consistent with higher metal pollution at this location. Sexually dimorphic patterns of MT and GST (F > M) were observed in juvenile alligators from all sites, although this pattern was not observed in adults. GST activity was lower in captive-raised alligators from Lake Apopka and Merritt Island NWR as compared to animals from Lake Woodruff NWR, suggesting a possible developmental modulator at these sites. No clear patterns were observed in LDH activity. We concluded that GST and MT demonstrate age and sex specific patterns in the alligators inhabiting these study sites and that the observed variation among sites could be due to differences in contaminant exposure.
journal_name
Chemospherejournal_title
Chemosphereauthors
Gunderson MP,Pickett MA,Martin JT,Hulse EJ,Smith SS,Smith LA,Campbell RM,Lowers RH,Boggs ASP,Guillette LJ Jrdoi
10.1016/j.chemosphere.2016.04.018subject
Has Abstractpub_date
2016-07-01 00:00:00pages
180-187eissn
0045-6535issn
1879-1298pii
S0045-6535(16)30492-1journal_volume
155pub_type
杂志文章相关文献
CHEMOSPHERE文献大全abstract::In natural environments, humic substances (HS) play a key role in the control of Cd stability by forming Cd-HS complexes. In this study, we investigated the influence of the photo-irradiation on the Cd levels remaining in Leonardite humic acid (HA) standard solution after chemical precipitation. The kinetic experiment...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2019.03.029
更新日期:2019-06-01 00:00:00
abstract::A simple Ca(OH)(2)-based replacement-precipitation process was applied to the removal of EDTA-chelated copper from wastewaters. The effect of initial pH of the solution, molar ratio of Ca(2+) to Cu(II), the presence of CO(2) on the removal efficiency was investigated. The experimental results showed that the Ca(OH)(2)...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2008.06.010
更新日期:2008-10-01 00:00:00
abstract::This study aimed to produce a high-value platform chemical, hydroxymethylfurfural (HMF), from food waste and evaluate the catalytic performance of trivalent and tetravalent metals such as AlCl3, CrCl3, FeCl3, Zr(O)Cl2, and SnCl4 for one-pot conversion. Starchy food waste, e.g., cooked rice and penne produced 4.0-8.1 w...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2017.06.095
更新日期:2017-10-01 00:00:00
abstract::Silver (Ag) ions are among the most toxic metallic ions to aquatic biota. In southern Argentina, fish from Patagonian lakes have liver Ag concentrations [Ag] among the highest ever reported globally. Silver concentration in phytoplankton from Lake Moreno (1.82±3.00μgg(-1) dry weight, DW) was found to be significantly ...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2010.12.072
更新日期:2011-04-01 00:00:00
abstract::Wet deposition and dry deposition samples were collected in an urban/industrialized area of Izmit Bay, North-eastern Marmara Sea, Turkey, from September 2002 to July 2003. The samples were analyzed for sixteen polycyclic aromatic hydrocarbon (PAH) compounds by using HPLC-UV technique. Wet and dry deposition concentrat...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2006.09.054
更新日期:2007-03-01 00:00:00
abstract::Ipomoea aquatica Forsk., an aquatic macrophyte, was assessed for its ability to accumulate lead (Pb) by exposing it to graded concentrations of this metal. Accumulation of Pb was the highest in root followed by that in stem and leaf with translocation factor (TF) values of less than unity. On the other hand, all bioco...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2016.05.001
更新日期:2016-08-01 00:00:00
abstract::The concentrations of heavy metals (Fe, Zn, Cu, Cd, Ni, Pb, Cr, As) were determined in seven seaweeds of environmental and commercial relevance (Ulva rigida C. Ag., Gracilaria gracilis (Stackhouse) Steentoft, L. Irvine and Farnham, Porphyra leucosticta Thuret, Grateloupia doryphora (Montagne) Howe., Undaria pinnatifid...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/s0045-6535(01)00292-2
更新日期:2002-04-01 00:00:00
abstract::Octachlorodibenzo-p-dioxin (OCDD)-added, pretreated fly ash was heated under vacuum at sample temperatures ranging from T(s)=450 to 650 K. The fly ash and liquid nitrogen-cooled trap samples were analyzed for DD/DF through OCDD/DF. The total amounts of DD through OCDD decrease with increasing T(s), which indicates tha...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2006.01.079
更新日期:2006-10-01 00:00:00
abstract::Biological technologies are efficient and economical methods for removing toxic arsenic (As) from organic wastewaters. In this study, four sequencing batch reactors of manganese-oxidizing aerobic granular sludge (Mn-AGS) were operated in duplicate and imposed with acidic pH and high organic shocks. Batch experiments w...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2020.127621
更新日期:2020-12-01 00:00:00
abstract::The covalent organic framework (COF) is made light elements linked by covalent networks. This study synthesize and characterized, and for the first time applied the produced EB-COF:Br as adsorbent for phosphate and arsenate removal from nearly neutral waters. The synthesized COF was first proven structurally stable in...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2020.126736
更新日期:2020-08-01 00:00:00
abstract::Fish gills are target organs for waterborne metal ions and this work aimed to investigate the effects of waterborne Ni(2+) (10, 25 and 50 mg L(-1)) on goldfish gills. A special focus was on the relationship between Ni uptake and the homeostasis of reactive oxygen species (ROS) in the gills, the tissue, in direct conta...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2012.06.044
更新日期:2013-01-01 00:00:00
abstract::This work reports the experimental determination of relevant thermodynamic properties and the characterization of luminescence properties of the following polycyclic aromatic hydrocarbons (PAHs): 2,6-diethylnaphthalene, 2,6-diisopropylnaphthalene and 2,6-di-tert-butylnaphthalene. The standard (p(o) = 0.1 MPa) molar en...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2015.11.114
更新日期:2016-03-01 00:00:00
abstract::The single particle-inductively coupled plasma-mass spectrometry was applied to characterize the aggregates of AgNPs. was applied to characterize the aggregates of AgNPs. Two sizes of citrate-AgNPs and PVP-AgNPs were used at relatively high and predicted environmental concentrations under various ionic strengths. Citr...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2016.12.063
更新日期:2017-03-01 00:00:00
abstract::The traditional approach to extracting estrogens from water matrices, solid-phase extraction (SPE), presents a number of challenges when applied to complex wastewater matrices. Conversely, the QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) clean-up method offers an alternative sample preparation approach th...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2020.128315
更新日期:2021-01-01 00:00:00
abstract::The investigation presents the observations on the use of cement beads for the immobilization of TiO2 for the degradation of herbicide isoproturon. The immobilized system was effective in degrading and mineralizing the herbicide for continuous thirty cycles without losing its durability. Catalyst was characterized by ...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2014.02.051
更新日期:2014-08-01 00:00:00
abstract::Bioremediation is a relatively efficient and cost-effective technology for treating polluted soils. However, the availability of suitable electron acceptors to sustain microbial respiration can reduce the microbial activity. This work aims to evaluate the impact of burying electrically conductive electron acceptors in...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2013.11.060
更新日期:2014-04-01 00:00:00
abstract::A study was conducted on the sorption of 17α-ethynylestradiol (EE2) on five soils formed under different redox conditions: an Arenosol (A_20) with fully aerobic conditions, two Gleysol samples (G_20 and G_40) with suboxic and anoxic conditions and two Histosols (H_20 and H_80) with mostly anoxic conditions. The soils ...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2019.124817
更新日期:2020-02-01 00:00:00
abstract::2,4-Dichlorophenoxyacetic acid (2,4-D) is one of the most applicable herbicides in the world. Therefore, its residue in aquatic environment threatens the human health and ecosystems. In this study, Fe2O3 (hematite) nanoparticles (HNPs) were synthesized, and the characteristics of the obtained HNPs were determined usin...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2016.11.038
更新日期:2017-02-01 00:00:00
abstract::In our previous study, electron paramagnetic resonance (EPR) evidence of reactive oxygen species (ROS) production in Carassius auratus following 2-chlorophenol (2-CP) administration was provided. To further investigate the potential pathway of ROS production, liver mitochondria of C. auratus was isolated and incubated...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2007.11.066
更新日期:2008-04-01 00:00:00
abstract::The predictive accuracy of using the one-dimensional advection-dispersion equation to evaluate the fate and transport of solute in a soil column is usually dependent on the proper determination of chemical retardation factors. Typically, the distribution coefficient (Kd) obtained by fitting the linear sorption isother...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/s0045-6535(00)00176-4
更新日期:2001-06-01 00:00:00
abstract::The inherent chemical properties of eight different dissolved organic matters (DOMs) originating from soil, surface and groundwater have been analysed. The samples consist of isolated fulvic acids (FA), humic acids (HA), and humic substances (HS), i.e. natural mixtures containing a humic and a fulvic fraction. The hum...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/s0045-6535(02)00335-1
更新日期:2002-12-01 00:00:00
abstract::The investigation of object-by-attribute matrices is very common in statistics and data analysis with the aim of uncovering every possible relationship among objects and/or attributes. Formal Concept Analysis (FCA) is a method, which stems directly from partial order and lattice theory, which provides an efficient too...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2007.09.019
更新日期:2008-02-01 00:00:00
abstract::This study investigated the acute and sub-acute toxicity responses in zebrafish following their exposure to hydroxyapatite-loaded cadmium nanoparticles (nHAP-Cd). The results indicate that cadmium chloride (Cd2+), 20 nm nHAP-Cd (nHAP20-Cd), and 40 nm nHAP-Cd (nHAP40-Cd) caused toxicity in zebrafish; the toxicity level...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2018.03.146
更新日期:2018-07-01 00:00:00
abstract::The goals of this work were to isolate and identify an anti-algal compound from extracts of Artemisia annua and study its mode of action on Microcystis aeruginosa. The anti-algal compound was isolated from the extracts using column chromatography and activity-guided fractionation methods. Artemisinin with strong anti-...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2012.05.009
更新日期:2012-08-01 00:00:00
abstract::Strobilurins is the most widely used class of fungicides, but is reported highly toxic to some aquatic organisms. In this study, zebrafish embryos were exposed to a range concentrations of three strobilurins (pyraclostrobin, trifloxystrobin and picoxystrobin) for 96 h post-fertilization (hpf) to assess their aquatic t...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2018.05.146
更新日期:2018-09-01 00:00:00
abstract::The key stocks and flows of phosphorus (P) through food consumption in Beijing and Tianjin, two megacities in northern China, were explored using a material flow analysis (MFA) approach to construct a static model of P metabolism. A total of 4498 t P has accumulated with 72% of P flow imported through food consumption...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2011.01.050
更新日期:2011-08-01 00:00:00
abstract::Titanium dioxide-mediated photodegradation of Polychlorinated biphenyls (PCBs) in soil/aqueous systems with added fluorinated surfactant was investigated. PCBs can bind tightly to organic matter in the soil, especially in aged, contaminated soil. Experiments showed an effective PCB photocatalytic degradation in mixed ...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/s0045-6535(99)00492-0
更新日期:2000-09-01 00:00:00
abstract::The binary and tertiary combinations of plant-derived molluscicides Azadirachta indica and Cedrus deodara oil with synergists MGK-264, piperonyl butoxide (PB) and fruit powder of Embelia ribes were used against the Lymnaea acuminata. It was observed that the toxic effects of these mixtures were time- and dose-dependen...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/s0045-6535(00)00563-4
更新日期:2001-09-01 00:00:00
abstract::The degradation reaction of dichloroacetic acid employing H(2)O(2) and UVC radiation (253.7nm) has been studied in a well mixed reactor operating inside a recycling system. It has been shown that in an aqueous solution no stable reaction intermediates are formed and, at every time during the reaction, two mols of hydr...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2006.06.044
更新日期:2007-01-01 00:00:00
abstract::Due to limited knowledge of graphene nanosheets (GNS) on phyto-biological studies, GNS was sprayed to pepper and eggplants during the seasons 2016 and 2017 at doses 0.1, 0.2 and 0.3 GNS g L-1 to assess their biosafety on leaf ultrastructure and agro-physiological traits. GNS was localized on plastids, cell walls and i...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2019.04.097
更新日期:2019-08-01 00:00:00