Impact of soil water regime on degradation and plant uptake behaviour of the herbicide isoproturon in different soil types

Grundmann, Sabine; Doerfler, Ulrike; Munch, Jean Charles; Rüth, B.; Schroll, Reiner

doi:10.1016/j.chemosphere.2010.11.037

Cited by 14 publications

(8 citation statements)

References 20 publications

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“…Numerous studies, including exposure to radiolabelled compounds, have shown that residual levels of herbicides, which are widely found in plant tissues, in soils or in waters, can be readily transferred by uptake or consumption to a wide range of non-target organisms (Cui et al, 2010;Grundmann et al, 2011;Knapp et al, 2013;Simonich and Hites, 1995;Zhou et al, 2015). Moreover, food poisoning due to pesticide residues in crop products is a real threat to human health, especially in developing countries where rules and regulations of pesticide usage can be less stringent (Zhou et al, 2015).…”

Section: Involvement Of Herbicide-related Signaling In the Environmenmentioning

confidence: 99%

Herbicide-related signaling in plants reveals novel insights for herbicide use strategies, environmental risk assessment and global change assessment challenges

Alberto

Serra

Sulmon

et al. 2016

Science of The Total Environment

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Section: Involvement Of Herbicide-related Signaling In the Environmenmentioning

confidence: 99%

Herbicide-related signaling in plants reveals novel insights for herbicide use strategies, environmental risk assessment and global change assessment challenges

Alberto

Serra

Sulmon

et al. 2016

Science of The Total Environment

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“…Our pol‐MERCs assays achieved a high cumulative mineralization together with a high mineralization rate (Fig. B), both common features present in biodegradation when the pollutant acts as a source of energy for the microbial degrading community (Grundmann et al ., ). In consequence, our electrode‐assisted treatment offers a malleable TEA capable to adapt to different redox‐dependent processes and perform in situ bioremediation by avoiding chemicals consumption or soil manipulation with negative environmental consequences.…”

Section: Resultsmentioning

confidence: 94%

“…A complete physical–chemical analysis of this soil was previously reported by Grundmann et al . (). Soil samples were taken from 0 to 20 cm and were stored in plastic bags at −20°C according to guidelines of the Organization for Economic Cooperation and Development (Organisation for Economic Cooperationand Development, ).…”

Section: Methodsmentioning

confidence: 97%

“…Another possible pathway for the formation of NER is the 14 C-IPU-degradation by microorganisms that can use it as an energy source and for microbial growth; as a result, 14 C-residues are incorporated into biomolecules and e.g. subsequently bound to soil ('apparent NER') when microbes die (Grundmann et al, 2011). Positive correlations between NER formation and IPU aerobic mineralization have been previously reported (Alletto et al, 2006), which could explain the similar NER fraction under electrode-free control and pol-MERCs despite the broad 14 C-IPU cumulative mineralization.…”

Section: Characterization Of the 14 C-ipu Mass Balancementioning

confidence: 99%

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Stimulating soil microorganisms for mineralizing the herbicide isoproturon by means of microbial electroremediating cells

Quejigo

Dörfler

Schroll

et al. 2016

Microbial Biotechnology

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SummaryThe absence of suitable terminal electron acceptors (TEA) in soil might limit the oxidative metabolism of environmental microbial populations. Microbial electroremediating cells (MERCs) consist in a variety of bioelectrochemical devices that aim to overcome electron acceptor limitation and maximize metabolic oxidation with the purpose of enhancing the biodegradation of a pollutant in the environment. The objective of this work was to use MERCs principles for stimulating soil bacteria to achieve the complete biodegradation of the herbicide 14C‐isoproturon (IPU) to 14 CO 2 in soils. Our study concludes that using electrodes at a positive potential [+600 mV (versus Ag/AgCl)] enhanced the mineralization by 20‐fold respect the electrode‐free control. We also report an overall profile of the 14C‐IPU metabolites and a 14C mass balance in response to the different treatments. The remarkable impact of electrodes on the microbial activity of natural communities suggests a promising future for this emerging environmental technology that we propose to name bioelectroventing.

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“…A lixiviação de herbicidas no solo pode ser determinada por modelos matemáticos (ANDRADE et al, 2011), que estima o risco de contaminação do solo e da água de consumo; lisímetros instalados no campo (GRUNDMANN et al, 2011), além da utilização de espécies vegetais, que apresentam alta sensibilidade ao herbicida de interesse, denominadas plantas bioindicadoras (INOUE et al, 2002).…”

Section: Introductionunclassified

Lixiviação do hexazinone e da mistura hexazinone + diuron em colunas de solos com texturas distintas.

Mendes¹,

Goulart

Possamai

et al. 2013

AGRO@MBIENTE

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Resumo -Objetivou-se avaliar a lixiviação do hexazinone isoladamente e da mistura com o diuron, em solos de texturas contrastantes, em colunas de solos sob diferentes precipitações. Utilizou-se um Latossolo Vermelho -LV, de textura argilosa e um Neossolo Quartzarênico -NQ, de textura arenosa. As unidades experimentais foram constituídas por colunas de PVC preenchidas com solos, nas doses de hexazinone (LV -375 g ha -1 e NQ -225 g ha -1 ) e hexazinone + diuron (LV -396 + 1.404 g ha -1 e NQ -264 + 936 g ha -1 ). Adotou-se o esquema fatorial 6 x 6 no delineamento em blocos casualizados, com três repetições. No fator A foram avaliadas às precipitações de 0, 20, 40, 60, 80 e 100 mm, e o fator B as profundidades (0-5, 5-10, 10-15, 15-20, 20-25 e 25-30 cm) das colunas. Posteriormente a simulação da chuva as colunas foram abertas longitudinalmente e ao longo dessas foram semeados Cucumis sativus. Independente da textura do solo, o hexazinone e a mistura hexazinone + diuron não ultrapassaram a camada de 10-15 cm do solo, na lâmina de 0 mm. O hexazinone e a mistura hexazinone + diuron apresentaram fitotoxicidade da espécie bioindicadora na camada de 20-25 cm em LV, e chegando até 25-30 cm no NQ, na maior lâmina simulada. Concluiu-se que não houve diferença no potencial de lixiviação do hexazinone quando em mistura com o diuron nos solos com texturas distintas, entretanto a composição textural argilosa, teor de matéria orgânica do solo e precipitações pluviométricas influenciou a lixiviação. Palavras-chave -Herbicidas. Precipitação pluviométrica. Profundidade do solo.Abstract -Objective to evaluate the leaching of the hexazinone and admixed with diuron, in soil of contrasting textures, in soil columns under different rainfall. The following soils were used: Red Latosol -LV, of clay texture and Quartzarenic Neosol -NQ, sandy texture. The experimental units were constituted by PVC columns filled with soil, at rates of hexazinone (LV -375 g ha -1 and NQ -225 g ha -1) and hexazinone + diuron (LV -396 + 1,404 g ha -1 and NQ -264 + 936 g ha -1 ). The factorial 6 x 6 in randomized block design, with three replications was adopted. Factor A evaluated the precipitation of 0, 20, 40, 60, 80, and 100 mm; factor B analyzed the depths (0-5, 5-10, 10-15, 15-20, 20-25 and 25-30 cm) column. Posteriorly the rain simulation the columns were longitudinally opened and along these were sown Cucumis sativus. Independent of soil texture, the hexazinone and mixture hexazinone + diuron did not exceed 10-15 cm layer of soil, the layer of 0 mm. The hexazinone and diuron + hexazinone mixture showed phytotoxicity of species bioindicator in the layer of 20-25 cm in LV, and reaching up to 25-30 cm in NQ, the greatest layer simulated. It was concluded that there was no difference in leaching potential of hexazinone when mixture with diuron in soils with distinct textures, however the clay textural composition, organic matter content of soil and rainfall influenced the leaching.

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Impact of soil water regime on degradation and plant uptake behaviour of the herbicide isoproturon in different soil types

Cited by 14 publications

References 20 publications

Herbicide-related signaling in plants reveals novel insights for herbicide use strategies, environmental risk assessment and global change assessment challenges

Herbicide-related signaling in plants reveals novel insights for herbicide use strategies, environmental risk assessment and global change assessment challenges

Stimulating soil microorganisms for mineralizing the herbicide isoproturon by means of microbial electroremediating cells

Lixiviação do hexazinone e da mistura hexazinone + diuron em colunas de solos com texturas distintas.

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