Inhibition of acetylcholinesterase activity as effect criterion in acute tests with juvenile Daphnia Magna

Guilhermino, Lúcia; Lopes, María Celeste; Carvalho, Arsélio P.; Soared, Amadeu M.V.M.

doi:10.1016/0045-6535(95)00360-6

Cited by 272 publications

(120 citation statements)

References 24 publications

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“…SEVGILER et al (2004) e FERNANDEZ-VEGA et al (2002 relataram redução da colinesterase em O. niloticus e A. anguilla expostos a etoxazole e carbamato, via hídrica, respectivamente. Em adição a estes agentes, o mercúrio tem também mostrado ser causa de inibição (GUILHERMINO et al, 1996;MELA, 2004). TORTELLI (2005) encontrou resultados semelhantes aos deste estudo, porém analisando a atividade colinesterásica em cérebro de bagres (Cathorops spixii) coletados na natureza, sugerindo que pode haver diferenças entre animais em contato com contaminantes, pois alguns peixes podem adaptar-se aos inúmeros contaminantes encontrados no meio aquático, e também que a atividade da colinesterase pode ser afetada por respostas de estresse e mediada pela liberação de adrenalina.…”

Section: E Emunclassified

Estresse de transporte em cascudos amazônicos ornamentais Cochliodon sp. (L145) e Hypostomus sp. (L28) (LORICARIIDAE)

et al. 2016

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In this study was evaluated the hematological response of ornamental Amazon plecos Cochliodon sp. (L145) and Hypostomus sp. (L28) submitted to transportation conditions. The erythrogram, leukogram, thrombogram, glucose and total plasma proteins (PPT) were determined at 0, 6, 24, 48 and 72 hours after 3-hours simulated transportation. For basal hematological profile, the blood was collected immediately to allow comparisons after the transport stress. Cochliodon sp. showed reduction in total erythrocyte after 6 and 24 hours of post-transport, and increase after 6 hours. Hypoglycemia were observed at 6 hours post-transport for Hypostomus sp. Thus, the Hypostomus sp. showed higher resistance compared to Cochliodon sp. when to the transport stress.

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Section: E Emunclassified

Estresse de transporte em cascudos amazônicos ornamentais Cochliodon sp. (L145) e Hypostomus sp. (L28) (LORICARIIDAE)

et al. 2016

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“…According to previous works [4,12,17] and the Pesticide Ecotoxicity Database of US Environmental Protection Agency [31], the 48-h median lethal concentrations (LC 50-48 ) for D. magna (24 h young) were 0.20 (0.14-0.27) μg/l for dichlorvos, 2.2 (0.7-3.5) μg/l for malathion, 5.0 (2.7-7.5) μg/l for parathion, and 8.7 (6.4-11.0) μg/l for methyl parathion. In this study, LC 50-48 of different OP was taken as one toxic unit (1TU) and acute 48-h toxicity tests under flow-through conditions were performed for seven concentration gradients, i.e., 0.1TU, 0.5TU, 1TU, 2TU, 5TU, 10TU, and 20TU, to evaluate the effects of different OPs on the avoidance behavior of D. magna.…”

Section: Methodsmentioning

confidence: 99%

The Avoidance Responses of Daphnia magna to the Exposure of Organophosphorus Pesticides in an On-Line Biomonitoring System

Ren

Zha

et al. 2008

Environ Model Assess

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In this study, avoidance behavior of the freshwater cladoceran Daphnia magna Straus was used as indicator to assess the early stress of accidental organophosphorus pesticide (OP) contamination. The movement behavior was detected by a multi-species biomonitoring system. There was obvious concentration-response relationship between the OP stress and the behavioral response even at sublethal exposure. A rising OP stress resulted in a significant decrease of response time to escape (RTE; p<0.05). In comparison of different OPs, it was found that there was a power regression between RTE and the toxic unit of OPs. Therefore, the avoidance behavior of D. magna was a sensitive indicator of sublethal OP stress, and the power relationship could be used to predict the early warning thresholds of more OPs in the on-line biomonitoring system.

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“…For the crustacean group, a large number of publications refer to a concentration-dependent inhibition of ChE with OP and carbamate pesticides (Supplemental Data, Table S1). This has been documented for Daphnia magna [30][31][32][33][34], Gammarus pulex [4], Hyalella azteca [35], and Procambarus clarkii [36] with several OPs and carbamates. These observations are in accordance with the expectations based on the mode of action of carbamates and OP pesticides.…”

Section: Cholinesterasementioning

confidence: 99%

Cholinesterase and glutathione‐S‐transferase activities in freshwater invertebrates as biomarkers to assess pesticide contamination

Domingues

Agra

Monaghan

et al. 2009

Enviro Toxic and Chemistry

128

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Abstract-Studies investigating the use of biomarkers in pesticide risk assessment have greatly increased in recent years; however, issues concerning the ecological meaning of enzymatic responses have proved controversial. Ideally a good biomarker response should be modulated by the environmental contaminants alone and demonstrate a predictable behavior towards certain types of toxins. As these premises are rarely observed, the present study aims to outline research that has contributed to an understanding of the behavior of two widely used biomarkers, cholinesterase and glutathione-S-transferase, describing environmental and biotic factors that affect their response in freshwater invertebrates. Studies were performed in the main classes of aquatic invertebrates with these biomarkers and conclusions were reached concerning their behavior towards the main classes of pesticides. Links between biomarker responses and conventional endpoints were evaluated so that ecological relevance could be attributed to enzymatic responses. Toxicity of mixtures was investigated, and cases of synergism and antagonism were pointed out as factors changing the expected toxicity of aquatic systems and leading to misinterpretations of biomarker responses. Finally, the use of biomarkers as a tool for biomonitoring and in situ assays was investigated, with discussion of advantages and disadvantages of their use.

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Inhibition of acetylcholinesterase activity as effect criterion in acute tests with juvenile Daphnia Magna

Cited by 272 publications

References 24 publications

Estresse de transporte em cascudos amazônicos ornamentais Cochliodon sp. (L145) e Hypostomus sp. (L28) (LORICARIIDAE)

Estresse de transporte em cascudos amazônicos ornamentais Cochliodon sp. (L145) e Hypostomus sp. (L28) (LORICARIIDAE)

The Avoidance Responses of Daphnia magna to the Exposure of Organophosphorus Pesticides in an On-Line Biomonitoring System

Cholinesterase and glutathione‐S‐transferase activities in freshwater invertebrates as biomarkers to assess pesticide contamination

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