Sorption, desorption and mineralisation of the herbicides glyphosate and MCPA in samples from two Danish soil and subsurface profiles

Sørensen, Sebastian R.; Schultz, Anne; Jacobsen, Ole Stig; Aamand, Jens

doi:10.1016/j.envpol.2005.07.023

Cited by 117 publications

(89 citation statements)

References 40 publications

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“…2-Methyl-4-chlorophenoxyacetic acid (MCPA) is a phenoxyalkanoic acid (PAA) herbicide used worldwide to control broad leaf weeds and has been introduced into the environment in large amounts (Smith, 1985;Worthing and Hance, 1991;Gintautas et al, 1992;Donaldson et al, 2002;Sorensen et al, 2006). Both MCPA and the structurally related PAA 2,4-dichlorophenoxyacetic-acid (2,4-D) are contaminants in ground water and soil (Thompson et al, 1984;Bryant, 1992;Scheidleder, 2000).…”

Section: Introductionmentioning

confidence: 99%

The earthworm Aporrectodea caliginosa stimulates abundance and activity of phenoxyalkanoic acid herbicide degraders

Zaprasis

Liu

et al. 2010

The ISME Journal

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2-Methyl-4-chlorophenoxyacetic acid (MCPA) is a widely used phenoxyalkanoic acid (PAA) herbicide. Earthworms represent the dominant macrofauna and enhance microbial activities in many soils. Thus, the effect of the model earthworm Aporrectodea caliginosa (Oligochaeta, Lumbricidae) on microbial MCPA degradation was assessed in soil columns with agricultural soil. MCPA degradation was quicker in soil with earthworms than without earthworms. Quantitative PCR was inhibition-corrected per nucleic acid extract and indicated that copy numbers of tfdA-like and cadA genes (both encoding oxygenases initiating aerobic PAA degradation) in soil with earthworms were up to three and four times higher than without earthworms, respectively. tfdA-like and 16S rRNA gene transcript copy numbers in soil with earthworms were two and six times higher than without earthworms, respectively. Most probable numbers (MPNs) of MCPA degraders approximated 4 × 105 gdw−1 in soil before incubation and in soil treated without earthworms, whereas MPNs of earthworm-treated soils were approximately 150 × higher. The aerobic capacity of soil to degrade MCPA was higher in earthworm-treated soils than in earthworm-untreated soils. Burrow walls and 0–5 cm depth bulk soil displayed higher capacities to degrade MCPA than did soil from 5–10 cm depth bulk soil, expression of tfdA-like genes in burrow walls was five times higher than in bulk soil and MCPA degraders were abundant in burrow walls (MPNs of 5 × 107 gdw−1). The collective data indicate that earthworms stimulate abundance and activity of MCPA degraders endogenous to soil by their burrowing activities and might thus be advantageous for enhancing PAA degradation in soil.

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Section: Introductionmentioning

confidence: 99%

The earthworm Aporrectodea caliginosa stimulates abundance and activity of phenoxyalkanoic acid herbicide degraders

Zaprasis

Liu

et al. 2010

The ISME Journal

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“…In order to allow specific degraders harboring the tfdA genes to proliferate, we treated the microcosms with 90 mol of 2,4-D, MCPA, or MCPP kg Ϫ1 of soil. Prior to and subsequent to Ն50% mineralization (measured using evolved 14 CO 2 ), a composite subsample consisting of 0.5 g of soil was removed, and DNA was extracted using a Power-Clean soil DNA kit (MoBio Laboratories, Carlsbad, CA) according to the manufacturer's instructions. Total DNA was quantified and the extraction efficiency was normalized by running 4-l aliquots of extracts on a standard 1.5% agarose gel stained with ethidium bromide, and qPCR was performed using the three different approaches (for further information on the experimental setup, nucleic acid preparation, and qPCR, see the supplemental Materials and Methods in the supplemental material).…”

mentioning

confidence: 99%

TaqMan Probe-Based Real-Time PCR Assay for Detection and Discrimination of Class I, II, and III tfdA Genes in Soils Treated with Phenoxy Acid Herbicides

Bælum

Jacobsen

2009

Appl Environ Microbiol

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“…therefore, more studies need to be done to closely investigate the possible biodegradation or biotransformation of sorbed MCs into AS by carefully monitoring the 14 C -radiolabeled MCs and their radioactivity within the biomass, 14 C-CO 2 , and the substrate (Haudin et al, 2013;Jr et al, 1989;Sørensen et al, 2006).…”

Section: P a G E | 134mentioning

confidence: 99%

General Fate Model for Microconstituents in an Activated Sludge System

Banihashemi¹,

Droste²

2016

proc water environ fed

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Sorption, desorption and mineralisation of the herbicides glyphosate and MCPA in samples from two Danish soil and subsurface profiles

Cited by 117 publications

References 40 publications

The earthworm Aporrectodea caliginosa stimulates abundance and activity of phenoxyalkanoic acid herbicide degraders

The earthworm Aporrectodea caliginosa stimulates abundance and activity of phenoxyalkanoic acid herbicide degraders

TaqMan Probe-Based Real-Time PCR Assay for Detection and Discrimination of Class I, II, and III tfdA Genes in Soils Treated with Phenoxy Acid Herbicides

General Fate Model for Microconstituents in an Activated Sludge System

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