Impact of Roundup on the marine microbial community, as shown by an in situ microcosm experiment

Stachowski-Haberkorn, Sabine; Becker, Beatriz; Marie, Dominique; Haberkorn, Hansy; Coroller, Louis; Broise, Denis de la

doi:10.1016/j.aquatox.2008.07.004

Cited by 54 publications

(31 citation statements)

References 67 publications

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“…In microcosms experiments with natural marine microbial community, significant effects in species number and relative abundance of phytoplankton were observed at 10 μg a.i./L of Roundup ® (Stachowski-Haberkorn et al, 2008). Comparable results were obtained by Pesce et al (2009), reporting changes in riverine algal communities exposed to about 10 μg/L of glyphosate alone, in a microcosms experiment.…”

Section: Effects On Non-target Aquatic Plants and Algaesupporting

confidence: 66%

Effects of Herbicide Glyphosate and Glyphosate-Based Formulations on Aquatic Ecosystems

Pérez¹,

Vera²,

Miranda³

2011

Herbicides and Environment

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Section: Effects On Non-target Aquatic Plants and Algaesupporting

confidence: 66%

Effects of Herbicide Glyphosate and Glyphosate-Based Formulations on Aquatic Ecosystems

Pérez¹,

Vera²,

Miranda³

2011

Herbicides and Environment

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“…In this context, total primary production may not be affected by the presence of herbicides in aquatic environments although phytoplankton biodiversity will certainly be altered (as observed by Pesce et al, 2009). In addition to reducing biodiversity, these interactions can induce eutrophication processes by stimulating herbicide mineralization, for example, or by increasing the nutrient contents of waterways (Stachowski-Haberkorn et al, 2008).…”

Section: Future Perspectives and Conclusionmentioning

confidence: 99%

Temperature and Light Modulation of Herbicide Toxicity on Algal and Cyanobacterial Physiology

Gomes

Juneau

2017

Front. Environ. Sci.

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HIGHLIGHTS• We reviewed the interaction between light, temperature and herbicides on algal and cyanobacterial physiology.• Temperature is the main factor affecting herbicide toxicity to algae and cyanobacteria.• Changes in light environment may modulate the effects of photosynthesis-targeting herbicides.Important interactions between climatic parameters and herbicide toxicity have been discussed in the literature. As climate changes are expected to influence the growth conditions of aquatic photosynthetic organisms over the next century by modifying the physicochemical parameters of the environment (such as temperature and incident light characteristics), the following questions arise: How will variations in climatic conditions influence herbicide toxicity in algae and cyanobacteria? Are these coupled effects on aquatic photosynthetic organism physiology antagonistic, additive, or synergistic?We discuss here the physiological responses of algae and cyanobacteria to the combined effects of environmental changes (temperature and light) and herbicide exposure. Both temperature and light are proposed to influence herbicide toxicity through acclimation processes that are mainly related to cell size and photosynthesis. Algal and cyanobacterial responses to interactions between light, temperature, and herbicides are species-specific, making it difficult today to establish a single model of how climate changes will affect toxicity of herbicides. Acclimation processes could assure the maintenance of primary production but total biodiversity should decrease in communities exposed to herbicides under changing temperature and light conditions. The inclusion of considerations on the impacts of environmental changes on toxicity of herbicides in water quality guidelines directed toward protecting aquatic life is now urgently needed.Keywords: environment, toxicity, hazardous, pollutants, algae, cyanobacteria Gomes and JuneauHerbicides/Climate Changes on PhytoplanktonGraphical Abstract | Changes in temperature and light conditions in water systems over the next century will drive physiological responses of algal and cyanobacterial community to herbicides, by antagonistic, additive, or synergic effects with these pollutants.

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“…Nucleic acid-based molecular methods have higher potential to give detailed information on the structure and diversity of microbial communities and specific phylogenetic or functional groups. Thus, investigations of pesticide effects on aquatic microbial assemblages have employed denaturing or temperature gradient gel electrophoresis, terminal restriction fragment length polymorphism, fluorescence in situ hybridisation and, more recently, 454 pyrosequencing (Chinalia and Killham, 2006;Pesce et al, 2006;Stachowski-Haberkorn et al, 2008;Pesce et al, 2009;Tadonléké et al, 2009;Vercraene-Eairmal et al, 2010;Lin et al, 2012;Aguayo et al, 2014;Dimitrov et al, 2014).…”

Section: Investigating Community-level Properties Of Sediment Microormentioning

confidence: 99%

Scientific Opinion on the effect assessment for pesticides on sediment organisms in edge‐of‐field surface water

2015

EFS2

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The EFSA Panel on Plant Protection Products and their Residues (PPR Panel) was tasked to revise the Guidance Document (GD) on Aquatic Ecotoxicology under Council Directive 91/414/EEC (SANCO/3268/2001 rev. 4 (final), 17 October 2002. This scientific opinion of the PPR Panel is the second of three requested deliverables within this mandate. The scientific background for the risk assessment on sediment organisms in edge-of-field surface waters is provided, with reference to benthic ecology and ecotoxicology, available test protocols and current knowledge on exposure and effects of sediment-bound plant protection products (PPPs). The scientific opinion provides approaches on how to derive regulatory acceptable concentrations (RACs) for sediment organisms and exposure to active substances of PPPs and transformation products of these substances, and how to link them in a tiered approach to predicted environmental concentrations (PECs) for the sediment compartment. A list of uncertainties in relation to such approaches is given. SUMMARYSediment Environmental Risk Assessment (ERA) is a combination of exposure and effect assessment. Proposals for these assessments are provided. The opinion describes specific protection goals (SPGs) for sediment-inhabiting organisms based on two options (1) the ecological threshold option (ETO), accepting negligible population effects only, and (2) if applicable, the ecological recovery option (ERO), accepting some population-level effects if ecological recovery takes place within an acceptable time period.Triggers for sediment ecotoxicity testing are proposed together with a decision scheme for when additional testing may be required. The ecotoxicologically relevant concentrations (ERCs) for sediment organisms are proposed, as this will be influenced by the choice of sediment layer, exposure metric and test duration.The current Forum for the co-ordination of pesticide fate models and their use (FOCUS) methodology for surface water does not consider the effect of multi-year applications, which could possibly lead to accumulation of pesticides in sediment. To account for this deficit, a proposed methodology for introducing an accumulation factor that can be used until an updated FOCUS methodology becomes available is presented in this opinion. The accumulation factor can be considered a conservative approach, since it does not include any possible transport processes, such as leaching or volatilisation, which may reduce the accumulation in sediment in the real field situation.A tiered effect assessment approach is proposed for different sediment organisms and how to link regulatory acceptable concentrations (RACs) to predicted environmental concentration (PECs). The assessment of bioaccumulation, biomagnification and secondary poisoning is discussed, as well as the prospect of improving ERA for sediment microorganisms.Transformation products from active substances also may need to be assessed, as well as mixture toxicity of formulations of plant protection products (PPPs). The op...

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Impact of Roundup on the marine microbial community, as shown by an in situ microcosm experiment

Cited by 54 publications

References 67 publications

Effects of Herbicide Glyphosate and Glyphosate-Based Formulations on Aquatic Ecosystems

Effects of Herbicide Glyphosate and Glyphosate-Based Formulations on Aquatic Ecosystems

Temperature and Light Modulation of Herbicide Toxicity on Algal and Cyanobacterial Physiology

Scientific Opinion on the effect assessment for pesticides on sediment organisms in edge‐of‐field surface water

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