Combined effect of bioaugmentation and bioturbation on atrazine degradation in soil

Monard, Cécile; Martin-Laurent, Fabrice; Vecchiato, C.; Francez, André-Jean; Vandenkoornhuyse, Philippe; Binet, Françoise

doi:10.1016/j.soilbio.2008.04.022

Cited by 46 publications

(45 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Thus, stabilization of burrows, continuous supply of nutrients and the stimulation of MCPA degraders would require the continuous presence of the worms. Burrows can enhance the transport, sorption and degradation of pesticides (for example, Farenhorst et al, , 2001Jensen et al, 2002;Bolduan and Zehe, 2006;Kersante et al, 2006;Monard et al, 2008). Consequently, burrows represent an important habitat sustaining active aerobic herbicide degraders in soils.…”

Section: Discussionmentioning

confidence: 99%

“…Earthworms might be utilized for bioaugmentation (that is, the introduction of degrader strains into soil), bioturbation (that is, mixing and redistribution of contaminants in soil), and thus generally bioremediation purposes (Daane and Haggblom, 1999;Hickman and Reid, 2008;Monard et al, 2008). Thus, identification of important microbial taxa involved in the degradation of certain contaminants and unraveling the complex interactions of invertebrates with such degraders in soils is fodder for future research and might provide a basis for improved contaminant removal from soil.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

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

Zaprasis

Liu

et al. 2010

The ISME Journal

View full text Add to dashboard Cite

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.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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

Zaprasis

Liu

et al. 2010

The ISME Journal

View full text Add to dashboard Cite

show abstract

“…Assays relating minimum inhibitory concentration and type of microorganisms yield good results in terms of the number of species and tolerance to the herbicide. This last is compared to other studies [6,20,34,35]. Bacteria identified are inhibited to a greater extent from 5,000 mg L -1 of atrazine, except Rhizobium sp.…”

Section: Growth Inhibition Bioassaysmentioning

confidence: 72%

“…Based on a references search [20] and the resulting data, it is estimated that the three sites are classified with good agricultural fertility. The soil sample from the Santana site (coming from an intensive agricultural area, with regular pesticides application) could be vulnerable to deterioration and short-term negative environmental impacts.…”

Section: Physical and Chemical Parameters Of The Soil Samplesmentioning

confidence: 99%

Identification of an Indigenous Atrazine Herbicide Tolerant Microbial Consortium in Beans (Phaseolus vulgaris L.) as a Potential Soil Bioremediator

Islas-Pelcastre¹,

Villagómez-Ibarra²,

Rodríguez-Pastrana³

et al. 2015

Agrotechnol

View full text Add to dashboard Cite

“…Asimismo Monard et al (2008), señalan que la E.foetida cambia las propiedades físicas y químicas del suelo, son eficientes ingenieras que actúan en las comunidades microbiológicas, actividad del suelo y pueden ser capaces de mineralizar los contaminantes presentes en este. Igualmente Contreras et al (2008), afirman que la aplicación de lombrices a un suelo contaminado con petróleo es una alternativa de dextosificación segura, amigable y económica para remover hidrocarburos aromáticos policíclicos del suelo.…”

Section: Introductionunclassified

Influencia de la Eisenia foetida y de Sustratos Orgánicos como Agentes Bioestimulantes en la Biodegradación de un Suelo Contaminado con Petróleo Pesado

et al. 2009

View full text Add to dashboard Cite

ResumenSe estudió el proceso de biodegradación de un suelo contaminado con petróleo pesado proveniente de la faja petrolífera del Orinoco. El suelo fue sometido a tres tipos de tratamientos, empleando estiércol equino, humus líquido y ejemplares de Eisenia foetida; para lograr disminuir su nivel de contaminación. Se analizaron hidrocarburos totales de petróleo (HTP), fracciones del crudo, porcentaje de humedad relativa, potencial de acidez, conteo de aerobios mesófilos, de acuerdo a procedimientos estándares (ASTM, COVENIN, y EPA). Los resultados reportaron diferencias significativas para el tratamiento con E. foetida mientras que para el tratamiento con humus líquido no se registraron diferencias significativas en la prueba de Dunnett. Los tratamientos con E. foetida y estiércol equino presentaron un alto porcentaje de remoción de hidrocarburos saturados y resinas; mientras que las fracciones de aromáticos y asfaltenos no variaron significativamente en la prueba de Tukey HSD, siendo el tratamiento con E. foetida el más eficaz en la descontaminación del suelo impactado. Palabras clave: biorremediación, Eisenia foetida, estiércol equino, humus líquido, petróleo pesado The influence of Eisenia foetida and Organic Substrates as Biostimulants Agents in the Biodegradation of Heavy Crude Contaminated Soil AbstractThe biodegradation of a heavy crude contaminated soil coming from the Orinoco oil belt was studied. The soil was subjected to three types of treatments using horse dung, liquid humus and samples of Eisenia foetida as bioestimulants to reduce its level of contamination. Total petroleum hydrocarbon (TPH), characterization of crude fractions, relative humidity rate, acidity potential and aerobics mesophylic count were performed, according to the standard methods (ASTM, COVENIN, and EPA). Significant differences in the treatments with the samples of E. foetida were found while no significant differences were observed in the treatment with liquid humus using Dunnett's test. The E. foetida and horse dung treatments shows a high degradation of saturated hydrocarbons and resins, whereas the asphalt and aromatic fractions did not vary significantly using the Tukey HSD test. The E. foetida treatment proved the most effective in the decontamination of heavy crude contaminated soil.

show abstract

Combined effect of bioaugmentation and bioturbation on atrazine degradation in soil

Cited by 46 publications

References 43 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

Identification of an Indigenous Atrazine Herbicide Tolerant Microbial Consortium in Beans (Phaseolus vulgaris L.) as a Potential Soil Bioremediator

Influencia de la Eisenia foetida y de Sustratos Orgánicos como Agentes Bioestimulantes en la Biodegradación de un Suelo Contaminado con Petróleo Pesado

Contact Info

Product

Resources

About