Capacity of tissue water regulation is impaired in an osmoconformer living in impacted estuaries?


:Estuarine osmoconformes rely on their ability to perform tissue and cell water regulation to cope with daily osmotic challenges that occur in the estuary. In addition, these animals currently must deal with pollutants present in the estuarine environment, which can disturb their capacity of water regulation. We collected the mangrove oyster Crassostrea rhizophorae in two tropical estuaries in the Northeast region of Brazil with different degrees of human interference: the Paraíba Estuary (impacted) and the Mamanguape Estuary (preserved). Tissue water content was analyzed after exposure to salinities 12, 24 and 36 for 24 h. Gill cell volume regulation was analyzed in vitro upon hypo- and hyper-osmotic conditions. We also analyzed gill MXR (multi-xenobiotic resistance) mechanism, as reference of environmental pollution. Gill and muscle of oysters from two sites of Paraíba Estuary, and from one site of Mamanguape Estuary were not able to maintain tissue water content upon hypo- and hyper-osmotic conditions. Gill cells of oyster from the same sites exhibited swelling followed by regulatory volume decrease upon hypo-osmotic condition. Gill MXR activity was increased in oysters from these sites. The best tissue and cell water regulation, and the lowest MXR activity, was found in oyster from downstream of Mamanguape Estuary, our reference site and the one most preserved. Tissue and cell water regulation proved to be a sensitive parameter to environmental pollution and could be considered as biomarker of aquatic contamination.


Ecotoxicol Environ Saf


David DD,Lima OG,Nóbrega AMCS,Amado EM




Has Abstract


2018-12-30 00:00:00












  • Forecast of cadmium impact on the environment using environmental models.

    abstract::A study of the pathway of cadmium in the European Community (EC) has led to the development of a time-dependent computer model that relates past and present environmental cadmium levels to the inputs of cadmium. Information on the origin and movement of environmental cadmium through the different compartments of the b...

    journal_title:Ecotoxicology and environmental safety

    pub_type: 杂志文章


    authors: van Enk RH

    更新日期:1983-02-01 00:00:00

  • Selenium-silicon (Se-Si) induced modulations in physio-biochemical responses, grain yield, quality, aroma formation and lodging in fragrant rice.

    abstract::Fragrant rice is a high-valued quality rice type which is gaining much popularity over the globe due to its better cooking qualities and special aromatic characteristics. Selenium (Se) and silicon (Si) could improve the growth and yield of rice; however, the combine effects of Se and Si (Se-Si treatments) on rice grai...

    journal_title:Ecotoxicology and environmental safety

    pub_type: 杂志文章


    authors: Liu X,Huang Z,Li Y,Xie W,Li W,Tang X,Ashraf U,Kong L,Wu L,Wang S,Mo Z

    更新日期:2020-06-15 00:00:00

  • Removal of antibiotics from water and waste milk by ozonation: kinetics, byproducts, and antimicrobial activity.

    abstract::The use of antibiotics in the dairy farming for curing and growth promotion results in the production of massive quantities of non-recyclable wastewater by the conventional purification techniques. Additionally, waste milk is produced during the drug withholding periods, which is not suitable for human or animal consu...

    journal_title:Ecotoxicology and environmental safety

    pub_type: 杂志文章


    authors: Alsager OA,Alnajrani MN,Abuelizz HA,Aldaghmani IA

    更新日期:2018-08-30 00:00:00

  • Sex-specific responses of Populus deltoides to interaction of cadmium and salinity in root systems.

    abstract::More research about branch order-specific accumulation of toxic ions in root systems is needed to know root branch-related responses in growth and physiology. In this study, we used Populus deltoides females and males as a model to detect sex-specific differences in physiology, biochemistry, ultrastructure of absorbin...

    journal_title:Ecotoxicology and environmental safety

    pub_type: 杂志文章


    authors: Hao L,Chen L,Zhu P,Zhang J,Zhang D,Xiao J,Xu Z,Zhang L,Liu Y,Li H,Yang H,Cao G

    更新日期:2020-06-01 00:00:00

  • Interactive effect of salinity and cadmium toxicity on soil microbial properties and enzyme activities.

    abstract::Salinity has been proposed to increase the mobility and availability of heavy metals, with a potentially significant consequence for greater metal toxicity. However, the interactive effect of salinity and metal pollution on soil microbial properties and functions is still unknown. This investigation was performed to e...

    journal_title:Ecotoxicology and environmental safety

    pub_type: 杂志文章


    authors: Raiesi F,Sadeghi E

    更新日期:2019-01-30 00:00:00

  • Metal-metal interactions of dietary cadmium, copper and zinc in rainbow trout, Oncorhynchus mykiss.

    abstract::The influence of metal-metal interactions on uptake, accumulation, plasma transport and chronic toxicity of dietary Cu, Cd and Zn in rainbow trout (Oncorhynchus mykiss) was explored. Juvenile rainbow trout were fed diets supplemented with (μg/g) 500 Cu, 1000 Zn and 500 Cd singly and as a ternary mixture at 2.5% body w...

    journal_title:Ecotoxicology and environmental safety

    pub_type: 杂志文章


    authors: Kamunde C,MacPhail R

    更新日期:2011-05-01 00:00:00

  • Different factors determined the toxicokinetics of organic chemicals and nanomaterials exposure to zebrafish (Danio Rerio).

    abstract::Little is known about how the chemical properties (molecular structure, such as the hydrophobic and hydrophilic end group for organic chemical, and particle size for nanomaterials (NMs)) quantitatively affect the toxicokinetics (TK) in organisms especially in short-term, single-species studies. A novel method based on...

    journal_title:Ecotoxicology and environmental safety

    pub_type: 杂志文章


    authors: Gao Y,Xie Z,Feng J,Ma W,Zhu L

    更新日期:2019-12-30 00:00:00

  • Response and recovery of brain acetylcholinesterase activity in the European eel, Anguilla anguilla, exposed to fenitrothion.

    abstract::European eel (Anguilla anguilla) were exposed to sublethal fenitrothion concentrations in a continuous flow-through system for 4 days. Brain acetylcholinesterase (AChE) activity was evaluated after 2, 8, 12, 24, 32, 48, 56, 72, and 96 h pesticide exposure. Results indicated that AChE activity in eel brains decreased a...

    journal_title:Ecotoxicology and environmental safety

    pub_type: 杂志文章


    authors: Sancho E,Ferrando MD,Andreu E

    更新日期:1997-12-01 00:00:00

  • Actions and interactions of temperature and photoperiod on mercury accumulation by Elodea densa from sediment source.

    abstract::Actions and interactions of two abiotic parameters--temperature (18, 21, and 24 degrees C) and photoperiod (8, 12, and 16 hr/day)--on mercury bioaccumulation (HgCl2 and CH3HgCl) by a rooted macrophyte species, Elodea densa, from the sediment source were studied using experimental designs. Comparative analysis of shoot...

    journal_title:Ecotoxicology and environmental safety

    pub_type: 杂志文章


    authors: Maury-Brachet R,Ribeyre F,Boudou A

    更新日期:1990-10-01 00:00:00

  • Possible side effects of airborne pesticides on fungi and vascular plants in The Netherlands.

    abstract::A survey of the potential side effects of volatilized pesticides on fungi and vascular plants in The Netherlands has been made for two herbicides (atrazine and MCPA), a fungicide (captan) and a soil fumigant (metham sodium). By applying existing models, a prediction is presented of post-treatment dispersal and deposit...

    journal_title:Ecotoxicology and environmental safety

    pub_type: 杂志文章


    authors: de Jong FM,van der Voet E,Canters KJ

    更新日期:1995-02-01 00:00:00

  • Food limitation in Chironomus tepperi: effects on survival, sex ratios and development across two generations.

    abstract::Species from the Dipteran family Chironomidae are widely used in laboratory and field studies to identify toxicity in freshwater environments. However, toxicity assessments can be influenced by food availability, which can alter endpoints in assays including viability, sex ratios and development time. The aim of this ...

    journal_title:Ecotoxicology and environmental safety

    pub_type: 杂志文章


    authors: Townsend KR,Pettigrove VJ,Hoffmann AA

    更新日期:2012-10-01 00:00:00

  • The role of vitamins A, C, E and selenium as antioxidants against genotoxicity and cytotoxicity of cadmium, copper, lead and zinc on erythrocytes of Nile tilapia, Oreochromis niloticus.

    abstract::This study was carried out to investigate the genotoxic and cytotoxic potentials of sublethal concentration (5mg L(-1)) of combined metals including Cd, Cu, Pb and Zn (1.25mg L(-1) of each) on erythrocytes of Nile tilapia, Oreochromis niloticus after exposure for five and seven days; and to evaluate the protective rol...

    journal_title:Ecotoxicology and environmental safety

    pub_type: 杂志文章


    authors: Harabawy AS,Mosleh YY

    更新日期:2014-06-01 00:00:00

  • The uptake, metabolism, and biological half-life of benzo[a]pyrene administered by force-feeding in sea bass (Dicentrarchus labrax).

    abstract::The kinetics of uptake and metabolism of benzo[a]pyrene (BaP) were studied in various tissues of a marine fish, the sea bass (Dicentrarchus labrax), after intragastric administration of pellets containing a 14C-labeled compound. Only 25% of injected radioactivity was detected and it was found only in intestine, gallbl...

    journal_title:Ecotoxicology and environmental safety

    pub_type: 杂志文章


    authors: Lemaire P,Lemaire-Gony S,Berhaut J,Lafaurie M

    更新日期:1992-04-01 00:00:00

  • Testing the genotoxicity of coking wastewater using Vicia faba and Hordeum vulgare bioassays.

    abstract::The coking wastewater induces severe environmental problems in China, however, its toxicity has not been well known. In the present study, the genotoxicity of coking wastewater was studied using Vicia faba and Hordeum vulgare root tip cytogenetic bioassays. Results show that the tested coking wastewater decreased the ...

    journal_title:Ecotoxicology and environmental safety

    pub_type: 杂志文章


    authors: Dong Y,Zhang J

    更新日期:2010-07-01 00:00:00

  • Assessing off-target cytotoxicity of the field lampricide 3-trifluoromethyl-4-nitrophenol using novel lake sturgeon cell lines.

    abstract::Lampricides are currently being applied to streams and rivers to control the population of sea lamprey, an invasive species, in the Great Lakes. The most commonly used lampricide agent used in the field is 3-trifluoromethyl-4-nitrophenol (TFM), which targets larval sea lamprey in lamprey-infested rivers and streams. T...

    journal_title:Ecotoxicology and environmental safety

    pub_type: 杂志文章


    authors: Vo NTK,Moore LC,Spiteri KW,Hanner R,Wilkie MP,DeWitte-Orr SJ

    更新日期:2018-10-30 00:00:00

  • Exogenous phosphite application alleviates the adverse effects of heat stress and improves thermotolerance of potato (Solanum tuberosum L.) seedlings.

    abstract::Phosphite (Phi), an analog of phosphate (Pi) anion, is emerging as a potential biostimulator, fungicide and insecticide. Here, we reported that Phi also significantly enhanced thermotolerance in potatoes under heat stress. Potato plants with and without Phi pretreatment were exposed to heat stress and their heat toler...

    journal_title:Ecotoxicology and environmental safety

    pub_type: 杂志文章


    authors: Xi Y,Han X,Zhang Z,Joshi J,Borza T,Mohammad Aqa M,Zhang B,Yuan H,Wang-Pruski G

    更新日期:2020-03-01 00:00:00

  • Relationship of aquatic natural organic material characteristics to the toxicity of selected insecticides.

    abstract::Toxicities of the commercial insecticide formulations of azinphos methyl, chlorpyrifos, fenvalerate, and methyl parathion were evaluated in streamwater samples containing natural organic material (NOM) using a modification of a bacterial bioluminescence assay. Toxicity reduction of azinphos methyl was significantly (P...

    journal_title:Ecotoxicology and environmental safety

    pub_type: 杂志文章


    authors: Kadlec MC,Benson WH

    更新日期:1995-06-01 00:00:00

  • Identifying sediment-associated toxicity in rivers affected by multiple pollutants from the contaminant bioavailability.

    abstract::In this study, we estimated the toxicity risks from river sediments that were affected by multiple pollutants in the Haihe River Basin. We used a range of methods to determine the concentrations, bioavailability, and toxicity of a range of metals and contaminants in sediments and sediment porewater and then assessed t...

    journal_title:Ecotoxicology and environmental safety

    pub_type: 杂志文章


    authors: Zhang C,Shan B,Tang W,Wang C,Zhang L

    更新日期:2019-04-30 00:00:00

  • Insecticide toxicity to Hyalella curvispina in runoff and stream water within a soybean farm (Buenos Aires, Argentina).

    abstract::Toxicity to the locally dominant amphipod Hyalella curvispina was assessed in a first-order stream running through a cultivated farm. Cypermethrin, chlorpyrifos, endosulfan and glyphosate were sprayed throughout the studied period. Toxicity was assayed under controlled laboratory conditions with runoff and stream wate...

    journal_title:Ecotoxicology and environmental safety

    pub_type: 杂志文章


    authors: Mugni H,Ronco A,Bonetto C

    更新日期:2011-03-01 00:00:00

  • Effects of NiO inhalation on alveolar macrophages and the humoral immune systems of rats.

    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


    authors: Spiegelberg T,Kördel W,Hochrainer D

    更新日期:1984-12-01 00:00:00

  • Effects of low molecular weight organic acids on Cu accumulation by castor bean and soil enzyme activities.

    abstract::Chelating agents have been considered as an important phytoremediation strategy to enhance heavy metal extraction from contaminated soil. A pot experiment was conducted to explore the effects of low molecular weight organic acids (LMWOAs) on the phytoremediation efficiency of copper (Cu) by castor bean, and soil enzym...

    journal_title:Ecotoxicology and environmental safety

    pub_type: 杂志文章


    authors: Huang G,You J,Zhou X,Ren C,Islam MS,Hu H

    更新日期:2020-10-15 00:00:00

  • Arsenic induced modulation of antioxidative defense system and brassinosteroids in Brassica juncea L.

    abstract::Brassica juncea (Indian mustard) L. plants were exposed to different concentrations (0.0, 0.1, 0.2 and 0.3mM) of arsenic (V) and harvested after 30 and 60 days of sowing for the analysis of growth parameters, metal uptake, brassinosteroids (BRs) synthesis and oxidative stress markers. As (V) significantly hampered the...

    journal_title:Ecotoxicology and environmental safety

    pub_type: 杂志文章


    authors: Kanwar MK,Poonam,Bhardwaj R

    更新日期:2015-05-01 00:00:00

  • Histochemical demonstration of two mercury pools in trout tissues: mercury in kidney and liver after mercuric chloride exposure.

    abstract::Juvenile rainbow trout (Salmo gairdneri) were exposed to 100 ppb mercury (as HgCl2) in the water for 14 days. Concentrations of mercury in water and fish organs were monitored using radiolabeled mercury. Tissues from kidney and liver were fixed, and sections were developed by autometallography, a method whereby accumu...

    journal_title:Ecotoxicology and environmental safety

    pub_type: 杂志文章


    authors: Baatrup E,Nielsen MG,Danscher G

    更新日期:1986-12-01 00:00:00

  • Target and non-target toxicity of botanical insecticide derived from Couroupita guianensis L. flower against generalist herbivore, Spodoptera litura Fab. and an earthworm, Eisenia foetida Savigny.

    abstract::Botanical insecticides may provide alternatives to synthetic insecticides for controlling Spodoptera litura (F.) and they are target specific, biodegradable, and harmless to mammals. Eight natural chemical compounds with larvicidal activity were identified from fraction F6 of C. guianensis flower extract. Probit analy...

    journal_title:Ecotoxicology and environmental safety

    pub_type: 杂志文章


    authors: Ponsankar A,Vasantha-Srinivasan P,Senthil-Nathan S,Thanigaivel A,Edwin ES,Selin-Rani S,Kalaivani K,Hunter WB,Alessandro RT,Abdel-Megeed A,Paik CH,Duraipandiyan V,Al-Dhabi NA

    更新日期:2016-11-01 00:00:00

  • Environmental hazard of selenium in the Animals La Plata water development project.

    abstract::A hazard assessment of selenium was conducted for the Animas La Plata Project, a multiple-use water development proposed for Colorado and New Mexico by the United States Bureau of Reclamation. A published protocol for aquatic hazard assessment of selenium was applied to environmental monitoring data to assess current ...

    journal_title:Ecotoxicology and environmental safety

    pub_type: 杂志文章


    authors: Lemly AD

    更新日期:1997-06-01 00:00:00

  • Effect of cadmium on the ovarian development in the freshwater prawn Macrobrachium rosenbergii (De Man).

    abstract::In this investigation, effect of cadmium chloride (25 μg/l) on oogenesis of freshwater prawn, Macrobrachium rosenbergii was studied. In vivo experiments were performed with both intact and eyestalk ablated prawns. The intact, cadmium-exposed prawns exhibited decrease in Gonado Somatic Index (GSI) and ovarian developme...

    journal_title:Ecotoxicology and environmental safety

    pub_type: 杂志文章


    authors: Revathi P,Vasanthi LA,Munuswamy N

    更新日期:2011-05-01 00:00:00

  • Comprehensive proteomic analysis of arsenic induced toxicity reveals the mechanism of multilevel coordination of efficient defense and energy metabolism in two Brassica napus cultivars.

    abstract::Arsenic (As) a non-essential element is of particular concern with respect to harmful effects on plant metabolism. While extensive studies have been conducted on the physiological responses of plants to increase As concentrations, however, molecular differences elucidating species-specific changes remain largely unkno...

    journal_title:Ecotoxicology and environmental safety

    pub_type: 杂志文章


    authors: Farooq MA,Hong Z,Islam F,Noor Y,Hannan F,Zhang Y,Ayyaz A,Mwamba TM,Zhou W,Song W

    更新日期:2021-01-15 00:00:00

  • In vitro effects of cadmium chloride on preimplantation rat embryos.

    abstract::Preimplantation rat embryos (8-cell, morulae, blastocysts) were incubated for 24 hr in vitro in a Brinster medium with or without cadmium chloride (1 microgram/ml). CdCl2 arrested the development of both the 8-cell and morulae into blastocysts. Morphologic observations revealed the 8-cell embryo to have shrunken cells...

    journal_title:Ecotoxicology and environmental safety

    pub_type: 杂志文章


    authors: Abraham R,Charles AK,Mankes R,LeFevre R,Renak V,Ashok L

    更新日期:1986-12-01 00:00:00

  • TiO2 nanoparticles and multi-walled carbon nanotubes monitoring and bioremediation potential using ciliates Pseudocohnilembus persalinus.

    abstract::In recent years, the release of nanomaterials pollutants to water bodies, to a great extent, attributed to anthropogenic activities. Their impacts on aquatic organisms as well as nanomaterial monitoring and bioremediation using organism have drawn much attentions. However, studies on relationship of nano-contaminants ...

    journal_title:Ecotoxicology and environmental safety

    pub_type: 杂志文章


    authors: Weijie M,Chongnv W,Xuming P,Weixin J,Yuhang W,Benhui S

    更新日期:2020-01-15 00:00:00

  • Inhibition of esterases in the marine gastropod Littorina littorea exposed to cadmium.

    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


    authors: Mazón LI,Gonzalez G,Vicario A,Estomba A,Aguirre A

    更新日期:1998-11-01 00:00:00