Chemical cocktails in aquatic systems: Pesticide effects on the response and recovery of &gt;20 animal taxa

Hua, Jessica; Relyea, Rick A.

doi:10.1016/j.envpol.2014.02.007

Cited by 70 publications

(55 citation statements)

References 47 publications

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“…Therefore, despite increased cercariae mortality, pesticide may still have no net influence on disease outcomes (e.g., infection and pathology). Moreover, a number of studies have demonstrate that hosts can vary in susceptibility to both pesticides and parasites (Bridges and Semlitsch, 2000b;Searle et al 2011;Cothran et al 2013;Hua and Relyea, 2014;Bradley et al 2015). Because pesticides can have direct and indirect effects on hosts and parasites, future studies that continue to tease apart the complex effects of pesticides on the different components of the host-parasite interaction are necessary (Rohr et al 2008).…”

Section: Discussionmentioning

confidence: 99%

Population-specific toxicity of six insecticides to the trematode Echinoparyphium sp.

et al. 2016

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The ubiquitous use of pesticides has increased concerns over their direct and indirect effects on disease dynamics. While studies examining the effects of pesticides on host-parasite interactions have largely focused on how pesticides influence the host, few studies have considered the effects of pesticides on parasites. We investigated the toxicity of six common insecticides at six environmentally-relevant concentrations to cercariae of the trematode Echinoparyphium from two populations. All six insecticides reduced the survival of cercariae (overall difference between mortality in control vs pesticide exposure = 86·2 ± 8·7%) but not in a predictable dose-dependent manner. These results suggest that Echinoparyphium are sensitive to a broad range of insecticides commonly used in the USA. The lack of a clear dose-dependent response in Echinoparyphium highlights the potential limitations of toxicity assays in predicting pesticide toxicity to parasites. Finally, population-level variation in cercarial susceptibility to pesticides underscores the importance of accounting for population variation as overlooking this variation can limit our ability to predict toxicity in nature. Collectively, this work demonstrates that consideration of pesticide toxicity to parasites is important to understanding how pesticides ultimately shape disease dynamics in nature.

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Section: Discussionmentioning

confidence: 99%

Population-specific toxicity of six insecticides to the trematode Echinoparyphium sp.

et al. 2016

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“…A6 cells are a well characterised cell line, having previously been used in toxicity studies (Gorrochategui et al, 2016) measuring responses such as expression of heat shock proteins (HSPs), intracellular calcium and cell cycle progression after exposure to a variety of environmental contaminants (Bjerregaard, 2007;Bjerregaard et al, 2001;Darasch et al, 1988;Faurskov and Bjerregaard, 1997;Faurskov and Bjerregaard, 2000;Faurskov and Bjerregaard, 2002;Heikkila et al, 1987;Khamis and Heikkila, 2013;Music et al, 2014;Thit et al, 2013;Woolfson and Heikkila, 2009;Yu et al, 2007). Additionally, as amphibians are exposed to multiple chemical stressors in the environment (Hua and Relyea, 2014;Relyea, 2009) …”

Section: Introductionmentioning

confidence: 99%

Infrared spectroscopy detects changes in an amphibian cell line induced by fungicides: Comparison of single and mixture effects

et al. 2016

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Contact CEH NORA team at noraceh@ceh.ac.ukThe NERC and CEH trademarks and logos ('the Trademarks') are registered trademarks of NERC in the UK and other countries, and may not be used without the prior written consent of the Trademark owner. Distinct differences were apparent in the IR spectra of cells exposed to carbendazim and those exposed to flusilazole, suggesting different mechanisms of action. Exposure to binary mixtures of carbendazim and flusilazole also induced significant spectral alterations, again in regions associated with phospholipids and proteins, but also in regions associated with DNA and carbohydrates. Overall these findings demonstrate that IR spectroscopy is a sensitive technique for examining the effects of environmentally-relevant levels of fungicides at the cellular level. The combination of IR spectroscopy with the A6 cell line could serve as a useful model to identify agents that might threaten amphibian health in a rapid and high throughput manner.

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“…Sugere-se também a inclusão em estudos futuros da análise das comunidades bentônica e perifítica, e dos efeitos da mistura de mais de um agrotóxico, visto que muitas vezes diferentes agrotóxicos são aplicados simultaneamente (HEGDE et al, 2014;HUA;RELYEA, 2014;RELYEA, 2009 (CARNEIRO et al, 2015). Este cenário se torna ainda mais crítico ao considerar as estatísticas de contaminação de alimentos e intoxicações humanas ocasionadas por agrotóxicos (ANVISA, 2013(ANVISA, , 2014SINITOX, 2015).…”

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“…Assim, os agrotóxicos podem promover a eliminação de organismos benéficos, a redução da biodiversidade, a seleção biológica de organismos indesejáveis, e a alteração da ciclagem de nutrientes e de matéria orgânica, induzindo a um desequilíbrio biológico (CHAGNON et al, 2015;HUA;RELYEA, 2014;KÖHLER;TRIEBSKORN, 2013).…”

Section: Introductionunclassified

Efeitos diretos e indiretos do agrotóxico Vertimec® 18 CE e de girinos de Lithobates catesbeianus nos ecossistemas de água doce: um estudo em mesocosmos

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Ao meu orientador, Evaldo Luiz Gaeta Espíndola, pela confiança, apoio, incentivo e pela oportunidade única de aprendizado e crescimento profissional durante esses anos de convívio.Aos membros da banca avaliadora pela disponibilidade em participar e contribuir para o presente trabalho.Ao Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) pela concessão da bolsa de doutorado direto (Processo nº: 140511/2011-3).À Ana e à Maressa pela parceria durante o desenvolvimento desta pesquisa. Aos técnicos do NEEA, Amândio e Marcelo, pela ajuda durante as análises laboratoriais e de campo.A todos os amigos do NEEA pela agradável convivência e ajuda durante todo o período do doutorado.Aos amigos dos demais núcleos de pesquisa do CRHEA por todos os momentos compartilhados.Aos funcionários do CRHEA pela disposição em ajudar.À Gabi e à Joyce por me acolherem com tanto carinho no período final do doutorado.A todos os meus amigos pelo apoio e por tornarem esse período muito mais leve.Ao Davi pelo amor, companheirismo, amizade, ânimo e apoio essencial durante todas as etapas do doutorado.Aos meus familiares, em especial aos meus pais, Celso e Graça, e ao meu irmão, Eduardo, pelo amor incondicional, apoio, compreensão, paciência e incentivo para que eu sempre buscasse os meus objetivos e sonhos.À minha avó materna (in memorian) pelo grande exemplo de vida.A todos que contribuíram direta ou indiretamente para a realização deste trabalho.

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Chemical cocktails in aquatic systems: Pesticide effects on the response and recovery of >20 animal taxa

Cited by 70 publications

References 47 publications

Population-specific toxicity of six insecticides to the trematode Echinoparyphium sp.

Population-specific toxicity of six insecticides to the trematode Echinoparyphium sp.

Infrared spectroscopy detects changes in an amphibian cell line induced by fungicides: Comparison of single and mixture effects

Efeitos diretos e indiretos do agrotóxico Vertimec® 18 CE e de girinos de Lithobates catesbeianus nos ecossistemas de água doce: um estudo em mesocosmos

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