Glyphosate runoff and its occurrence in rainwater and subsurface soil in the nearby area of agricultural fields in Argentina.

Lupi, Leonardo; Bedmar, Francisco; Puricelli, Marino; Marino, Damián; Aparicio, Virginia; Wunderlin, Daniel A.; Miglioranza, Karina Silvia Beatriz

doi:10.1016/j.chemosphere.2019.03.090

Cited by 95 publications

(51 citation statements)

References 57 publications

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“…At the international level, in recent years the presence of glyphosate has been found in both ground and surface water in Canada [ 38 ], Argentina [ 39 ] and Sri Lanka [ 40 ]. The values found are very similar to was found in Tenampulco, except in Argentina, due to the excessive use of glyphosate on crops where genetically modified organisms are planted [ 41 ].…”

Section: Resultsmentioning

confidence: 99%

Determination of Glyphosate in Water from a Rural Locality in México and Its Implications for the Population Based on Water Consumption and Use Habits

Reynoso

Peña

Reyes

et al. 2020

IJERPH

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Glyphosate is a broad-spectrum herbicide widely used worldwide. Indeed, it is the herbicide most applied to all Mexican crops. Due to the overuse and poor disposal of the waste, this herbicide can reach the aquatic environments such as groundwater and surface water. Thus, there is a clear need to implement monitoring and surveillance programs for evaluating and controlling the exposure to this herbicide in rural populations. The goal of this study was to quantify the presence of glyphosate in different water bodies (groundwater, surface and drinking water) as well as to identify the uses and managements of water resources by rural communities to evaluate the potential human exposure to glyphosate in the Tenampulco region of the Mexican state of Puebla. Measurements were performed by a rapid and cost-effective ELISA-based method in groundwater and surface water from various sampling sites of the Tenampulco region. Glyphosate was detected in all groundwater samples to be below the maximum limit for glyphosate in water in Mexico. Nevertheless, these results indicate an exposure of glyphosate in these agricultural communities and the need to establish a monitoring program.

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Section: Resultsmentioning

confidence: 99%

Determination of Glyphosate in Water from a Rural Locality in México and Its Implications for the Population Based on Water Consumption and Use Habits

Reynoso

Peña

Reyes

et al. 2020

IJERPH

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“…En el suelo es adsorbido mediante uniones fosfato y degradado por microorganismos, cuyo principal metabolito es el AMPA. A pesar de su relativa escasa movilidad, abundan estudios que muestran su llegada a cursos de agua superficial y subterránea (Aparicio et al, 2013;Ayarragaray et al, 2015;Etchegoyen, 2014;Lupi et al, 2019;Primost, 2013;Primost et al, 2017;Sasal et al, 2012;Sasal et al, 2017).…”

Section: Introductionunclassified

Análisis Del Efecto De Secuencias De Cultivo Sobre El Escurrimiento Superficial Y Pérdidas De Suelo Y Herbicidas

Seehaus¹,

Sasal²,

Opstal³

et al. 2020

FAVE Sección Ciencias Agrarias

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La evaluación del efecto de los sistemas agrícolas sobre el ambiente es fundamental para minimizar sus impactos negativos. Este estudio evalúa las pérdidas de agua, sedimentos y herbicidas por escurrimiento en distintas secuencias agrícolas, luego de una precipitación próxima a la pulverización. Fue realizado en parcelas de escurrimiento bajo lluvia natural, en INTA Paraná. Las secuencias de cultivo evaluadas fueron: soja continua (S), soja continua con trigo como cultivo de cobertura (CC-S) y trigo/soja (T/S) bajo siembra directa, las cuales fueron pulverizadas con glifosato y cletodim. Considerando el total de los datos analizados, los porcentajes perdidos en escurrimiento de glifosato y cletodim respecto a lo aplicado oscilaron entre 5,3-13,5% y 2,6-5,9%, respectivamente. Las pérdidas de suelo y AMPA (concentración) fueron mayores para S. Se resalta la importancia de las condiciones meteorológicas posteriores a las pulverizaciones para reducir el riesgo de aportes difusos de agroquímicos hacia cuerpos de agua.

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“…The samples were extracted with 25 ml of a 100 mM solution of K 2 HPO 4 adjusted to pH = 9 with 100 mM Na 4 B 2 O 7 . The extraction was carried out by sonication at 40°C for 15 min, then centrifuged and 2 ml of the supernatant was used for precolumn derivatization ( Lupi et al, 2019 ). Analytes in a 15 ml polypropylene tube were derivatized with a solution of FMOC-CL (9-fluorenylmethyl chloroformate; 1 mg ml –1 in acetonitrile) in a sample:derivatizer ratio 1:1 overnight.…”

Section: Methodsmentioning

confidence: 99%

Isolation, Biochemical and Genomic Characterization of Glyphosate Tolerant Bacteria to Perform Microbe-Assisted Phytoremediation

et al. 2021

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The large-scale use of the herbicide glyphosate leads to growing ecotoxicological and human health concerns. Microbe-assisted phytoremediation arises as a good option to remove, contain, or degrade glyphosate from soils and waterbodies, and thus avoid further spreading to non-target areas. To achieve this, availability of plant-colonizing, glyphosate-tolerant and -degrading strains is required and at the same time, it must be linked to plant-microorganism interaction studies focusing on a substantive ability to colonize the roots and degrade or transform the herbicide. In this work, we isolated bacteria from a chronically glyphosate-exposed site in Argentina, evaluated their glyphosate tolerance using the minimum inhibitory concentration assay, their in vitro degradation potential, their plant growth-promotion traits, and performed whole genome sequencing to gain insight into the application of a phytoremediation strategy to remediate glyphosate contaminated agronomic soils. Twenty-four soil and root-associated bacterial strains were isolated. Sixteen could grow using glyphosate as the sole source of phosphorous. As shown in MIC assay, some strains tolerated up to 10000 mg kg–1 of glyphosate. Most of them also demonstrated a diverse spectrum of in vitro plant growth-promotion traits, confirmed in their genome sequences. Two representative isolates were studied for their root colonization. An isolate of Ochrobactrum haematophilum exhibited different colonization patterns in the rhizoplane compared to an isolate of Rhizobium sp. Both strains were able to metabolize almost 50% of the original glyphosate concentration of 50 mg l–1 in 9 days. In a microcosms experiment with Lotus corniculatus L, O. haematophilum performed better than Rhizobium, with 97% of glyphosate transformed after 20 days. The results suggest that L. corniculatus in combination with to O. haematophilum can be adopted for phytoremediation of glyphosate on agricultural soils. An effective strategy is presented of linking the experimental data from the isolation of tolerant bacteria with performing plant-bacteria interaction tests to demonstrate positive effects on the removal of glyphosate from soils.

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Glyphosate runoff and its occurrence in rainwater and subsurface soil in the nearby area of agricultural fields in Argentina.

Cited by 95 publications

References 57 publications

Determination of Glyphosate in Water from a Rural Locality in México and Its Implications for the Population Based on Water Consumption and Use Habits

Determination of Glyphosate in Water from a Rural Locality in México and Its Implications for the Population Based on Water Consumption and Use Habits

Análisis Del Efecto De Secuencias De Cultivo Sobre El Escurrimiento Superficial Y Pérdidas De Suelo Y Herbicidas

Isolation, Biochemical and Genomic Characterization of Glyphosate Tolerant Bacteria to Perform Microbe-Assisted Phytoremediation

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