A Daphnia magna feeding bioassay as a cost effective and ecological relevant sublethal toxicity test for Environmental Risk Assessment of toxic effluents

Barata, Carlos; Alañón, P.; Gutierrez-Alonso, S.; Riva, M. C.; Fernández, Carlos; Tarazona, José

doi:10.1016/j.scitotenv.2008.06.028

Cited by 86 publications

(54 citation statements)

References 46 publications

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“…D. magna is a key test organism for water quality and industrial sewage disposals in standardized environmental risk assessment tests [28,29], because it is sensitive to ecotoxicologically relevant or endocrine-disrupting pollutants that harm higher animals and humans [30,31]. Nonetheless, little is known about the endocrine system of Daphnia except for sites of presumed neurosecretion, as detected earlier by histological methods [32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Pigment-dispersing hormone in Daphnia interneurons, one type homologous to insect clock neurons displaying circadian rhythmicity

Strauß

Zhang

Verleyen

et al. 2011

Cell. Mol. Life Sci.

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We report identification of a beta-type pigment-dispersing hormone (PDH) identical in two water flea species, Daphnia magna and Daphnia pulex. It has been identified by cloning of precursors, chromatographic isolation from tissue extracts followed by immunoassays and de novo-mass spectrometric sequencing. The peptide is restricted to a complex system of distinct interneurons in the brain and visual ganglia, but does not occur in neurosecretory cells projecting to neurohemal organs as in decapod crustaceans. Thirteen neuron types individually identified and reconstructed by immunohistochemistry were almost identical in terms of positions and projection patterns in both species. Several neurons invade and form plexuses in visual ganglia and major brain neuropils including the central body. Five neuron types show contralateral pathways and form plexuses in the lateral, dorsal, or postlateral brain neuropils. Others are local interneurons, and a tritocerebral neuron connects the protocerebrum with the neuropil of the locomotory second antenna. Two visual ganglia neuron types lateral to the medulla closely resemble insect medulla lateral circadian clock neurons containing pigment-dispersing factor based upon positional and projectional criteria. Experiments under 12:12 h light/dark cycles and constant light or darkness conditions showed significant circadian changes in numbers and activities of one type of medulla lateral PDH neuron with an acrophase in the evening. This simple PDH system shows striking homologies to PDH systems in decapod crustaceans and well-known clock neurons in several insects, which suggests evolutionary conservation of an ancient peptidergic interneuronal system that is part of biological clocks.

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Section: Introductionmentioning

confidence: 99%

Pigment-dispersing hormone in Daphnia interneurons, one type homologous to insect clock neurons displaying circadian rhythmicity

Strauß

Zhang

Verleyen

et al. 2011

Cell. Mol. Life Sci.

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“…There are the methods for biological testing of toxic substances including the use of Daphnia magna S. in a variety of objects known [7,17,18]. The following Table 3 presents the results of patulin determination method which we have developed by using Daphnia magna S. [7] in tomato samples.…”

Section: Resultsmentioning

confidence: 99%

Epiphytic and regulated microbial contaminants of food vegetable raw materials and products

Pylypenko¹,

Pylypenko²,

Sevastyanova³

et al. 2016

Ukr. food j.

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“…Bassoi et al (1990) apontam que o monitoramento biológico complementa os procedimentos já adotados através do monitoramento químico. Em testes realizados com efluentes tóxicos, Sponza (2002;2006) e Barata et al (2008) concluíram que os resultados de toxicidade obtidos enfatizam a necessidade de incluir testes deste tipo para monitorar mais realisticamente a toxicidade de efluentes ou águas superficiais que recebem descarte de efluentes. Outros autores também já ressaltaram a importância da realização de ambos os tipos de monitoramento para uma completa avaliação dos efeitos resultantes das atividades humanas sobre o meio ambiente (Fowler & Aguiar, 1991;Ravera, 1998;Van der Velde & Leuven, 1999).…”

Section: Discussionunclassified

Toxicity Bioassay Validation as a Support for Monitoring Effluent Discharge

Sousa¹,

Padula

Silva

et al. 2013

Ecotoxicol. Environ. Contam.

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Toxicity Bioassay Validation as a Support for Monitoring Effluent Discharge -The present work aimed evaluating the impact of precipitation with sodium hydroxide and sodium sulfide, that clearly reduce the chemical contaminants of the effluent, leading to toxicity reduction. Metal analysis by ICP/AES (Inductively Coupled Plasma/Atomic Emission Spectroscopy), physicochemical analysis (pH) and toxicological analysis (by measuring the production of micronuclei in Allium cepa) were performed in the effluent studied before and after the precipitation. The analysis before treatment showed the extreme acidity of the effluent (pH<1,0), metals above the acceptable level for discharging according to the standards (especially zinc and iron) and significant mutagenicity. After precipitation with sodium sulfide, there was enough reduction in metals concentration to allow the effluent discharging within the limits specified by Conama Resolutions 357/2005 and 430/2011, and with both precipitants the discharging was possible according to the limits specified by 8468/76 Decree (São Paulo State/Brazil) (for the elements studied). There was also significant reduction in mutagenicity after treatment. The use of mutagenicity bioassay with A. cepa as a supplementary protocol to the ones already recommended for effluent analysis is emphasized in the present work.

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A Daphnia magna feeding bioassay as a cost effective and ecological relevant sublethal toxicity test for Environmental Risk Assessment of toxic effluents

Cited by 86 publications

References 46 publications

Pigment-dispersing hormone in Daphnia interneurons, one type homologous to insect clock neurons displaying circadian rhythmicity

Pigment-dispersing hormone in Daphnia interneurons, one type homologous to insect clock neurons displaying circadian rhythmicity

Epiphytic and regulated microbial contaminants of food vegetable raw materials and products

Toxicity Bioassay Validation as a Support for Monitoring Effluent Discharge

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