Meta-analysis of glyphosate contamination in surface waters and dissipation by biofilms

Carles, Louis; Gardon, Hélène; Joseph, Laura; Sanchís, Josep; Farré, Marinella; Artigas, Joan

doi:10.1016/j.envint.2018.12.064

Cited by 104 publications

(80 citation statements)

References 32 publications

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“…Relative abundances in (%). Fernandes et al, 2019), or to persist at a very small percentage of the initial concentration, as demonstrated in a microcosm study of biofilms in a French river (Carles et al, 2019). Either would provide glyphosate-degrading OTUs with a nutritional advantage.…”

Section: Differences In the Responses Of Water Column And Biofilm Commentioning

confidence: 99%

“…Glyphosate has been detected in marine and freshwater systems (Van Bruggen et al, 2018;Carles et al, 2019), representing a disturbance to microbial communities at concentrations upwards of 5.92 nM (Stachowski-Haberkorn et al, 2008). Moreover, its dissipation is enhanced by biofilms, probably due to their adsorption capacities (Klátyik et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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A Glyphosate Pulse to Brackish Long-Term Microcosms Has a Greater Impact on the Microbial Diversity and Abundance of Planktonic Than of Biofilm Assemblages

et al. 2019

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The widespread herbicide glyphosate has been detected in aquatic coastal zones of the southern Baltic Sea. We monitored community dynamics in glyphosateimpacted chemostats for 20 weeks to evaluate the potential impact of the herbicide on free-living and biofilm-associated bacterial community assemblages in a brackish ecosystem. A HPLC-MS/MS method was developed to measure glyphosate, aminomethylphosphonic acid and sarcosine concentrations within a brackish matrix. These concentrations were analyzed weekly, together with prokaryotic succession, determined by total cell counts and next generation 16S rRNA (gene) amplicon sequencing. Shotgun metagenomics provided insights into the glyphosate degradation potential of the microbial communities. Temporal increases in total cell counts, bacterial diversity and the abundances of distinct bacterial operational taxonomic units were identified in the water column. Biofilm communities proved to be less affected than pelagic ones, but their responses were of longer duration. The increase of glyphosate oxidoreductase (gox) and thiO gene as well as the phn operon abundance indicated glyphosate degradation by first the aminomethylphosphonic acid pathway and possibly a subsequent cleavage of the C-P bond. However, although glyphosate concentrations were reduced by 99%, 1 µM of the herbicide remained until the end of the experiment. Thus, when present at low concentrations, glyphosate may evade bacterial degradation and persist in Baltic Sea waters.

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Section: Differences In the Responses Of Water Column And Biofilm Commentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Glyphosate Pulse to Brackish Long-Term Microcosms Has a Greater Impact on the Microbial Diversity and Abundance of Planktonic Than of Biofilm Assemblages

et al. 2019

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“…For example, according to environmental qua lity standards of Brazilia, the maximum value allowed for Class I waters for glyphosate is 65 µg/L [17]. Environmentally realistic concentrations of Gl in Europe corresponding to dozens and hundreds of µg⋅L -1 [7]. We treated isolated tissues of U. tumidus mussels with organophosphonate pesticide glyphosate (Gl, formulation Roundup MAX, Monsanto, USA) at concentrations 34, 68, 169 and 338 µg⋅L -1 (corresponding to 13.3, 26.7, 66.8 and 133.6 µg⋅L -1 of Gl) during 2 h at 20 o C followed by 15 h at around 2 °C.…”

Section: Methodsmentioning

confidence: 99%

The effect of Roundup on the bivalve Unio tumidus mollusk utilizing ex vivo approach

et al. 2020

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dingly to a decrease of the MT and/or GSH concentrations. However, the levels of TBARS and PC were not changed comparing to control detecting the early stage of the injury. Surprisingly, NRR increased in the exposures to higher concentrations of glyphosate, probably due to strong chelating ability of glyphosate or other compounds of formulation. This study allows us to detect the earlier biological effects of glyphosate in the low environmentally realistic concentrations. Further validation of this approach needs the comparison of the results in the ex vivo and in vivo experiments.

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“…The concomitance of glyphosate and AMPA in groundwater suggests partial mineralization of the former under the influence of anthropic activities or environmental conditions. Glyphosate is converted into AMPA largely in eutrophic water than it is in P-poor water [ 127 ]. Glyphosate and AMPA have been identified at oligotrophic sites and found to be completely absent from upstream communities under low glyphosate–low phosphorus conditions.…”

Section: Impact Of Glyphosate and Its Metabolite Ampa On Water Strmentioning

confidence: 99%

“…Phosphorous from glyphosate and AMPA is very low accounting for <0.17% of total P. The degree of contamination of surface water with glyphosate depends largely on two factors, namely: (a) herbicide level, affected by soil biodegradation and sorption; and (b) phosphorus availability in the water, reducing its degradation. This should be considered in the evaluation of the environmental risks of glyphosate and AMPA present in surface waters [ 121 , 127 , 130 , 131 , 132 , 133 , 134 , 135 , 136 , 137 ].…”

Section: Impact Of Glyphosate and Its Metabolite Ampa On Water Strmentioning

confidence: 99%

Assessment of Glyphosate Impact on the Agrofood Ecosystem

Sang

Mejuto

Xiao

et al. 2021

Plants

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Agro-industries should adopt effective strategies to use agrochemicals such as glyphosate herbicides cautiously in order to protect public health. This entails careful testing and risk assessment of available choices, and also educating farmers and users with mitigation strategies in ecosystem protection and sustainable development. The key to success in this endeavour is using scientific research on biological pest control, organic farming and regulatory control, etc., for new developments in food production and safety, and for environmental protection. Education and research is of paramount importance for food and nutrition security in the shadow of climate change, and their consequences in food production and consumption safety and sustainability. This review, therefore, diagnoses on the use of glyphosate and the associated development of glyphosate-resistant weeds. It also deals with the risk assessment on human health of glyphosate formulations through environment and dietary exposures based on the impact of glyphosate and its metabolite AMPA –(aminomethyl)phosphonic acid– on water and food. All this to setup further conclusions and recommendations on the regulated use of glyphosate and how to mitigate the adverse effects.

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Meta-analysis of glyphosate contamination in surface waters and dissipation by biofilms

Cited by 104 publications

References 32 publications

A Glyphosate Pulse to Brackish Long-Term Microcosms Has a Greater Impact on the Microbial Diversity and Abundance of Planktonic Than of Biofilm Assemblages

A Glyphosate Pulse to Brackish Long-Term Microcosms Has a Greater Impact on the Microbial Diversity and Abundance of Planktonic Than of Biofilm Assemblages

The effect of Roundup on the bivalve Unio tumidus mollusk utilizing ex vivo approach

Assessment of Glyphosate Impact on the Agrofood Ecosystem

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