Bioaccumulation of glyphosate and its formulation Roundup Ultra in Lumbriculus variegatus and its effects on biotransformation and antioxidant enzymes

Contardo-Jara, Valeska; Klingelmann, Eva; Wiegand, Claudia

doi:10.1016/j.envpol.2008.07.027

Cited by 144 publications

(78 citation statements)

References 41 publications

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“…In the environment, it has a half-life between 7 and 174 days [8] [9] and metabolizes into AMPA, methylamine, ammonia, and carbon dioxide [10]. Extensive and recurrent uses, as well as an inappropriate product application, cause its presence in unwanted areas and glyphosate can be found in soil [11], water [12] [13], crops [14], plants [2], animals [15], and human inhabited areas [16], with a significant toxicological and environmental potential damage [17].…”

Section: Introductionmentioning

confidence: 99%

Glyphosate detection with ammonium nitrate and humic acids as potential interfering substances by pulsed voltammetry technique

Gil

Laguarda-Miró

Camino

et al. 2013

Talanta

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ElsevierMartínez Gil, P.; Laguarda Miró, N.; Soto Camino, J.; Masot Peris, R. (2013) AbstractPulsed voltammetry has been used to detect and quantify glyphosate on buffered water in presence of ammonium nitrate and humic substances. Glyphosate is the most widely used herbicide active ingredient in the world. It is a non-selective broad spectrum herbicide but some of its health and environmental effects are still being discussed. Nowadays, glyphosate pollution in water is being monitored but quantification techniques are slow and expensive. Glyphosate wastes are often detected in countryside water bodies where organic substances and fertilizers (commonly based on ammonium nitrate) may also be present. glyphosate also forms complexes with humic acids so these compounds have also been taken into consideration. The objective of this research is to study the interference of these common pollutants in glyphosate measurements by pulsed voltammetry. The statistical treatment of the voltammetric data obtained lets us discriminate glyphosate from the other studied compounds and a mathematical model has been built to quantify glyphosate concentrations in a buffer despite the presence of humic substances and ammonium nitrate. In this model, the coefficient of determination (R 2 ) is 0.977 and the RMSEP value is 2.96x10 -5 so the model is considered statistically valid.

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Section: Introductionmentioning

confidence: 99%

Glyphosate detection with ammonium nitrate and humic acids as potential interfering substances by pulsed voltammetry technique

Gil

Laguarda-Miró

Camino

et al. 2013

Talanta

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“…13 Although glyphosate use has increased nearly 15-fold since 1996 14 when glyphosate-resistant GE crops were first introduced, it is only within the last 5 to 10years that assessment of its detrimental effects on soil and environmental health have become the focus of intensive research efforts. Recent findings that glyphosate tends to accumulate and persist in restricted zones of soils and sediments and in rhizospheres [5][6][7]11,12 emphasizes the need to evaluate environmental effects within these specific microhabitats relative to more traditional investigations of such chemicals amended in "bulk" or root-free homogenous soils and expressing concentrations on a "furrow-slice" basis (i.e., using 908,000kg of soil per ha). For a full understanding of effects of potential glyphosate accumulation in soils, long-term studies on persistence are needed on sites receiving annual application and on those that are no longer under GE cropping systems to determine the extent of any carryover of residual glyphosate and AMPA.…”

Section: Opinionmentioning

confidence: 99%

Soil and Environmental Health after Twenty Years of Intensive Use of Glyphosate

Kremer¹

2017

APAR

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“…The herbicide glyphosate is the most widely used broad-spectrum, non-selective and post emergence pesticide (Schuster & Gratzfeld-Husgen, 1992). It is utilized for weed control in agriculture, forestry, urban areas and even aquaculture (Contardo Jara et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

“…Various non-target organisms have been used as bioindicators of glyphosate environmental impacts, including protozoans (Coupe & Smith, 2006), worms (Contardo-Jara et al, 2009); insects (Linz et al, 1999;Baker et al, 2014) and microorganisms (Tsui & Chu, 2003;Ratcliff et al, 2006;Gomez et al, 2009;Mbanaso et al, 2014;Santos et al, 2009). The focus on a particular group of organisms results in data inherently limited to the phylum, and could be financially prohibitive.…”

mentioning

confidence: 99%

The impact of glyphosate herbicides on soil microbial activity from the Carajás National Forest

Castilho¹,

Viana²,

Santos³

et al. 2016

RCA

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KEYWORDS Bioindicators Invasive plants Microbial respiration rate Metabolic quotient PALAVRAS-CHAVE Bioindicadores Plantas invasoras Taxa de respiração microbiana Quociente metabólico ABSTRACT:The objective of this study was to evaluate the impact of different glyphosate-based herbicide formulations on microbial activity of soils from Carajás National Forest. We tested three formulations of glyphosate, i.e., Roundup Original  , Roundup Ultra  and Roundup WG  that were applied in five doses: 0; 240; 480; 720 and 1440 g of active ingredient in acid equivalent ha -1 , with four replications. Herbicides were sprayed on pots containing 500 g of soil derived from the 0-10 cm layer of the study site. We determined the carbon from microbial biomass (C-MB), microbial respiration rate (MR) and metabolic quotient (qCO 2 ) at one and 28 days after herbicide application. No treatment affected the C-MB and MR at one and 28 days of incubation. There was no difference for qCO 2 at any dose of Roundup Ultra  and WG  formulations at one and 28 days of incubation. However, the qCO 2 was inhibited by the Roundup Original  at one day post treatment. This parameter was normalized at 28 days after herbicide application. The data indicate that no one of the treatments tested cause significant impact on soil microorganisms of the Carajás National Forest, suggesting that herbicide-based invasive weed control could be used. RESUMO: Objetivou-se com este estudo avaliar o impacto de diferentes formulações de herbicidas à base de glyphosate na atividade microbiana de solo da Floresta Nacional de Carajás. Foram testadas três formulações comerciais de glyphosate (Roundup Original

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Bioaccumulation of glyphosate and its formulation Roundup Ultra in Lumbriculus variegatus and its effects on biotransformation and antioxidant enzymes

Cited by 144 publications

References 41 publications

Glyphosate detection with ammonium nitrate and humic acids as potential interfering substances by pulsed voltammetry technique

Glyphosate detection with ammonium nitrate and humic acids as potential interfering substances by pulsed voltammetry technique

Soil and Environmental Health after Twenty Years of Intensive Use of Glyphosate

The impact of glyphosate herbicides on soil microbial activity from the Carajás National Forest

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