Journal of The Brazilian Society of Ecotoxicology最新文献_第9页

Effects of the Microcystis aeruginosa Strain RST9501 from Patos Lagoon, RS, on Growth and Reproduction of the Cladocera Ceriodaphnia dubia 帕托斯湖铜绿微囊藻RST9501菌株对斑点斑枝藻生长和繁殖的影响

Journal of The Brazilian Society of Ecotoxicology Pub Date : 1900-01-01 DOI: 10.5132/JBSE.2006.01.020

N. Monteiro, J. Yunes, M. B. Bohrer-Morel

引用次数: 4

Relationship Between Water Quality and Land use Along a Stretch of the Sorocaba River (SP) 索罗卡巴河流域水质与土地利用的关系

Journal of The Brazilian Society of Ecotoxicology Pub Date : 1900-01-01 DOI: 10.5132/JBSE.2009.01.009

A. M. Silva, A. H. Rosa, F. M. Antunes, D. P. Nogueira, S. Lessa

引用次数: 7

Sensibilidade do Ouriço Arbacia lixula (Echinodermata: Echinoidea) em Testes de Toxicidade 刺猬(棘皮动物:棘皮总科)毒性试验的敏感性

Journal of The Brazilian Society of Ecotoxicology Pub Date : 1900-01-01 DOI: 10.5132/JBSE.2008.01.007

M. Máximo, L.S.M. Mottola, C. Resgalla-Jr

{"title":"Sensibilidade do Ouriço Arbacia lixula (Echinodermata: Echinoidea) em Testes de Toxicidade","authors":"M. Máximo, L.S.M. Mottola, C. Resgalla-Jr","doi":"10.5132/JBSE.2008.01.007","DOIUrl":"https://doi.org/10.5132/JBSE.2008.01.007","url":null,"abstract":"Sensitivity of the sea urchin Arbacia lixula (Echinodermata: Echinoidea) in toxicity tests This study investigates the sea urchin Arbacia lixula in terms of embryonic and larval development time, development tolerance in different salinities and maintenance water temperatures, its repeatability in the presence of reference toxicants used in toxicity tests, and its sensitivity in comparison with other species of sea urchin normally used in Brazil. The embryonic development of A. lixula at 25°C rapidly reached the larval stage pluteus in less than 24 hours, therefore it was not necessary to extend the period of the experiments. However, it presents some disadvantages such as a fertilization membrane that is not very clear, and often with a fertilization rate from 70 to 80%. The experiments to determine the viability of the embryos in different salinities and temperatures demonstrated a wide tolerance, with a normal development of 24 h between the salinities of 29 and 39 and 20 h for 30 o C of temperature. The toxicity tests carried out with the reference toxicant resulted in values for variation coefficients lower than 30% for chromium and zinc, demonstrating that the tests are repeateable. When compared with other sea-urchin species (Lytechinus variegatus and Echinometra lucunter), A. lixula presented sensitivity of the same order and scale, and similar results were obtained for the environmental samples (sediment elutriate).","PeriodicalId":163251,"journal":{"name":"Journal of The Brazilian Society of Ecotoxicology","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127900032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

New Imposex Development Index (IDI) for Stramonita haemastoma (Mollusca: Muricidae): A Transplantation Experiment in the Brazilian Northeast 新的血肿单胞虫(软体动物:杀虫科)的非性发育指数(IDI):巴西东北部的移植实验

Journal of The Brazilian Society of Ecotoxicology Pub Date : 1900-01-01 DOI: 10.5132/JBSE.2007.03.007

L. R. Queiroz, Í. Castro, C. Rocha-Barreira

引用次数: 10

Mutagenicidade do Sedimento e Estresse Oxidativo Hepático em Peixes sob a Influência de Curtumes 皮革厂影响下鱼类沉积物致突变性和肝脏氧化应激

Journal of The Brazilian Society of Ecotoxicology Pub Date : 1900-01-01 DOI: 10.5132/JBSE.2006.01.012

K. C. Tagliari, Rubens Cecchini, J. V. Rocha, V.M.F. Vargas, S. França

{"title":"Mutagenicidade do Sedimento e Estresse Oxidativo Hepático em Peixes sob a Influência de Curtumes","authors":"K. C. Tagliari, Rubens Cecchini, J. V. Rocha, V.M.F. Vargas, S. França","doi":"10.5132/JBSE.2006.01.012","DOIUrl":"https://doi.org/10.5132/JBSE.2006.01.012","url":null,"abstract":"Sediment mutagenicity and liver oxidative stress in fish under tannery influence The mutagenicity of interstitial water and organic extracts from the sediments in the Cadeia and Feitoria Rivers, RS, Brazil, were evaluated by Salmonella microsuspension bioassay using TA97a, TA98, TA100 and TA102 strains, in the absence and presence of S9 mix. At the contaminated site, the mutagenic responses for interstitial water, suggested the presence of frameshift and base pair substitution mutagens, including substances that generate oxidative stress. Organic extracts presented direct or indicative mutagenesis to the TA97a, TA98 and TA100 strains. In general, an exogenous metabolic systems decreased the mutagenicity of the samples. The livers of Gymnogeophagus gymnogenys, family Cichlidae, collected in this impacted area, compared to a non-polluted site, were analyzed for oxidative stress parameters. Compared to the controls, there was a significant increase in the activity of superoxide dismutase (SOD), levels of substances reactive to thiobarbituric acid (TBARS), and in the chemiluminescence of hepatic cells in fish collected at the polluted area. The concentration of cytochromes P450 and b5 decreased drastically in the fish at the polluted site, while the catalase activity did not change. It was possible to correlate the biological changes in the fish with the presence of mutagenic compounds in interstitial water in this area.","PeriodicalId":163251,"journal":{"name":"Journal of The Brazilian Society of Ecotoxicology","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116240938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Comparação dos Efeitos do Material Particulado em Suspensão (PTS) Colhido em Diferentes Fontes Emissoras de Poluentes sobre a Embriogênese em Ovos de Galinha 不同污染物排放源收集的悬浮颗粒物(PTS)对鸡蛋胚胎发生的影响比较

Journal of The Brazilian Society of Ecotoxicology Pub Date : 1900-01-01 DOI: 10.5132/JBSE.2006.01.011

Daiane Azevedo, D. S. Oliveira, H. Guimarães, R. Martins, M. Macchiore, P. Saldiva

引用次数: 1

Efecto de Malatión y de Maca (Lepidium meyenii) sobre la Espermatogenesis del Ratón (Mus musculus) 马拉硫磷和玛咖(Lepidium meyenii)对小鼠精子发生的影响

Journal of The Brazilian Society of Ecotoxicology Pub Date : 1900-01-01 DOI: 10.5132/JBSE.2007.01.005

Eduardo Bustos-Obregón, T. D. Iederichs, F. D. Río, L. Sarabia, S. Chile

{"title":"Efecto de Malatión y de Maca (Lepidium meyenii) sobre la Espermatogenesis del Ratón (Mus musculus)","authors":"Eduardo Bustos-Obregón, T. D. Iederichs, F. D. Río, L. Sarabia, S. Chile","doi":"10.5132/JBSE.2007.01.005","DOIUrl":"https://doi.org/10.5132/JBSE.2007.01.005","url":null,"abstract":"Effect of Malathion and Maca (Lepidium meyenii) on espermatogenis of mouse Malathion induces testicular alterations related to decrease of fertility in different species. The extract of a plant (Maca) was utilized to analyze if it has an antagonistic effect to malathion. For this trial, for which 52 mice of 12 weeks of age were utilized, distributed in 4 groups (Control, Maca, Malathion, Maca + Malathion) and injected intraperitoneally with Malathion or NaCl 0.9% and/or Maca (given orally by means of an esophagic tube) mice were sacrificed at days 1, 7, 14 and 21. The frequency of the stages of the seminiferous epithelium was determined in histological sections staind with Peryodic Acid Schiff – Hematoxylin for the evaluation of the spermatic acrosomas. The data were analyzed with the t non parametric test of ANOVA of Kruskal-Wallis, and multivariable analysis of Dunn. Al day 1 post treatment it was observed that the stage XII is more frequent with Maca and Malathion + Maca but diminishes with Malathion by day 7. A significative increase of the stage VII is found in the group treated with Malathion. Al day 14 an increase of the stage VIII is seen in the group treated with Malathion, which is not the case for group treated with Malathion + Maca, the same situations is found by day 21 in the stage IX. These results suggest that Malathion alters the frequency of stages of the cycle while Maca protects the tubules from this damage.","PeriodicalId":163251,"journal":{"name":"Journal of The Brazilian Society of Ecotoxicology","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131291152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mutagenic Activity Assessment of Cristais River, São Paulo, Brazil, Using the Blue Rayon/Salmonella Microsome and the Tradescantia pallida Micronuclei Assays 利用蓝色粘胶/沙门氏菌微粒体和苍白菌微核测定法评价巴西<e:1>圣保罗Cristais河的致突变活性

Journal of The Brazilian Society of Ecotoxicology Pub Date : 1900-01-01 DOI: 10.5132/JBSE.2007.02.009

G. Umbuzeiro, C. A. Coimbrao, Fábio Kummrow, D. Lobo, P. Saldiva

{"title":"Mutagenic Activity Assessment of Cristais River, São Paulo, Brazil, Using the Blue Rayon/Salmonella Microsome and the Tradescantia pallida Micronuclei Assays","authors":"G. Umbuzeiro, C. A. Coimbrao, Fábio Kummrow, D. Lobo, P. Saldiva","doi":"10.5132/JBSE.2007.02.009","DOIUrl":"https://doi.org/10.5132/JBSE.2007.02.009","url":null,"abstract":"Cristais River, located in the metropolitan region of Sao Paulo city, is used as source of drinking water and mutagenic activity was observed in the extracts obtained from its waters. This effect was associated to a discharge of a textile dye processing plant that contains, among other mutagenic compounds, the dyes C.I. Disperse Blue 373, C.I. Disperse Violet 93 and C.I. Disperse Orange 37. The objective of this work was to assess the mutagenic activity using the blue rayon hanging technique (BR)/Salmonella microsome assay and the Tradescantia-MCN mutagenicity test exposed in the field for 24 hours before and after the discharge of the cited industrial effluent. The BR/Salmonella microsome assay showed to be sensitive to detect the mutagenicity, after the textile dye processing plant discharge. The Trad-MCN assay, using plant cuttings exposed directly in the river showed an increased response after the industrial discharge. Due to its simplicity and low cost, the Trad-MCN assay seems to be a good alternative for screening surface waters for mutagenic activity. Both techniques have the advantage of better represent the environmental conditions because the extraction/exposure is performed in the field during 24 hours.","PeriodicalId":163251,"journal":{"name":"Journal of The Brazilian Society of Ecotoxicology","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115535659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 13

Efecto Toxicológico del "Sachayoco", Paullinia clavigera (Sapindaceae) sobre Daphnia magna y sobre Dos Controladores Biológicos de Plagas Agrícolas 无患子科(Paullinia clavigera)对大水蚤和两种农业害虫生物防治剂的毒理学影响

Journal of The Brazilian Society of Ecotoxicology Pub Date : 1900-01-01 DOI: 10.5132/JBSE.2007.01.003

J. Iannacone, L. Alvariño, J. Soto, C. Salcedo

{"title":"Efecto Toxicológico del \"Sachayoco\", Paullinia clavigera (Sapindaceae) sobre Daphnia magna y sobre Dos Controladores Biológicos de Plagas Agrícolas","authors":"J. Iannacone, L. Alvariño, J. Soto, C. Salcedo","doi":"10.5132/JBSE.2007.01.003","DOIUrl":"https://doi.org/10.5132/JBSE.2007.01.003","url":null,"abstract":"Toxicological effect of soapberry, Paullinia clavigera (Sapindaceae) on Daphnia magna and on two biological control of agriculture pests Soapberry, Paullinia clavigera Simpson (Sapindaceae) is used as a craft insecticide in Peruvian Amazon. The aim of the current research was to evaluate the toxicological effect of P. clavigera proceeding of Pucallpa, Peru, on Daphnia magna Strauss, 1820 (Crustacea: Daphniidae), and on two biological controls of agriculture pests: Copidosoma koehleri Blanchard, 1940 (Hymenoptera: Encyrtidae), and Chrysoperla externa (Hagen 1861) (Neuroptera: Chrysopidae). In D. magna (LC 50 at 48 h exposure), the highest effects were found with leaves (LC 50 = 237 mg L –1 ) and stem cortex (LC 50 = 398 mg L –1 ) chlorophormic extracts. In C. koehleri (LC 50 at 48 h exposure and emergence of adults), only hexanic extracts of leaves (LC 50 = 145 mg L –1 ; 38.9%) and stem cortex (LC 50 = 298.6 mg L –1 ; 16.8%) produced effects on mortality and emergency of adults, respectively. Toxicological effects of stem cortex chlorophormic botanic extracts on larvae of C. externa (at 96 h of exposure) were not found. Leaves and stem cortex ethanolic extracts had the most potential for use in an integrated pest management (IPM) because they were less toxicand selective to biological control and for D. magna in the freshwater environment.","PeriodicalId":163251,"journal":{"name":"Journal of The Brazilian Society of Ecotoxicology","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114219424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 13

Cadmium Accumulation by Water Hyacinth and Salvinia Under Different Sulfur Concentrations 不同硫浓度下水葫芦和萨尔维尼草对镉的富集

Journal of The Brazilian Society of Ecotoxicology Pub Date : 1900-01-01 DOI: 10.5132/JBSE.2007.03.010

S. Vestena, J. Cambraia, M. A. Oliveira, J. Oliveira

{"title":"Cadmium Accumulation by Water Hyacinth and Salvinia Under Different Sulfur Concentrations","authors":"S. Vestena, J. Cambraia, M. A. Oliveira, J. Oliveira","doi":"10.5132/JBSE.2007.03.010","DOIUrl":"https://doi.org/10.5132/JBSE.2007.03.010","url":null,"abstract":"Cadmium (Cd) accumulation by water hyacinth and salvinia under different sulfur (S) concentrations was studied. Plants were exposed during six days to 0 and 5 µM of Cd in nutrient solution with 0, 400 and 800 µM of S, and then S and Cd contents in tops and roots were determined. Sulfur content was always higher in S-treated plants, independent of the presence of Cd. Cadmium content in Cd-treated plants increased with the addition of S to the nutrient solution in both species. Water hyacinth roots accumulate an average of 1.4 time more Cd than those of salvinia. The increase in S concentration from 400 to 800 µM, however, usually did not result in additional increase in S nor in Cd accumulation. The molar Cd/S ratio after Cd treatment reached average values of about 4.8 in roots and 2.6 in tops in comparison to their respective controls. Both species, therefore, were Cd accumulators and the accumulation was larger in the roots under presence of S. Since water hyacinth produced larger root mass and accumulated more Cd, it showed larger capacity to remove Cd from aquatic systems contaminated with this metal, especially if S is available.","PeriodicalId":163251,"journal":{"name":"Journal of The Brazilian Society of Ecotoxicology","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123149617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9