Phytoremediation of hexachlorocyclohexane (HCH)-contaminated soils using Cytisus striatus and bacterial inoculants in soils with distinct organic matter content

The performance of Cytisus striatus in association with different microbial inoculant treatments on the dissipation of the insecticide hexachlorocyclohexane (HCH) was studied. Two soils with different organic matter (A and B soil) content were spiked with 0 or 65 mg HCH kg−1. Plants were either not...

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Veröffentlicht in:Environmental pollution (1987) 2013-07, Vol.178, p.202-210
Hauptverfasser: Becerra-Castro, Cristina, Kidd, Petra S., Rodríguez-Garrido, Beatriz, Monterroso, Carmela, Santos-Ucha, Paula, Prieto-Fernández, Ángeles
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container_issue
container_start_page 202
container_title Environmental pollution (1987)
container_volume 178
creator Becerra-Castro, Cristina
Kidd, Petra S.
Rodríguez-Garrido, Beatriz
Monterroso, Carmela
Santos-Ucha, Paula
Prieto-Fernández, Ángeles
description The performance of Cytisus striatus in association with different microbial inoculant treatments on the dissipation of the insecticide hexachlorocyclohexane (HCH) was studied. Two soils with different organic matter (A and B soil) content were spiked with 0 or 65 mg HCH kg−1. Plants were either not inoculated (NI), or inoculated with the endophyte Rhodococcus erythropolis ET54b and the HCH-degrader Sphingomonas sp. D4 separately or in combination (ET, D4 and ETD4). Unplanted pots were also established. HCH phytotoxicity was more pronounced in the B soil. Soil HCH concentrations in unplanted pots were similar to initial concentrations, whereas concentrations were reduced after plant growth: by 20% and 8% in A and B soil, respectively. Microbial inoculants also modified HCH dissipation, although effects were soil-dependent. Inoculation with the combination of strains (ETD4) led to a significant enhancement in HCH dissipation: up to 53% in the A soil and 43% in the B soil. •Effect of microbial inoculants on HCH dissipation was studied in a plant-soil system.•Inoculation of C. striatus with bacterial strains strongly enhance HCH dissipation.•Retention of HCH by organic matter can influence efficiency of HCH phytoremediation. The inoculation of Cytisus striatus with a combination of bacterial strains is a promising approach for the remediation of HCH-contaminated sites.
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Inoculation with the combination of strains (ETD4) led to a significant enhancement in HCH dissipation: up to 53% in the A soil and 43% in the B soil. •Effect of microbial inoculants on HCH dissipation was studied in a plant-soil system.•Inoculation of C. striatus with bacterial strains strongly enhance HCH dissipation.•Retention of HCH by organic matter can influence efficiency of HCH phytoremediation. The inoculation of Cytisus striatus with a combination of bacterial strains is a promising approach for the remediation of HCH-contaminated sites.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><pmid>23583940</pmid><doi>10.1016/j.envpol.2013.03.027</doi><tpages>9</tpages></addata></record>
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subjects Applied sciences
Bacteria
Bacteria - growth & development
Bacteria - metabolism
Biodegradation, Environmental
Biological and medical sciences
Biotechnology
Cytisus
Cytisus - physiology
Decontamination. Miscellaneous
Dissipation
endophytes
Environment and pollution
Exact sciences and technology
Fundamental and applied biological sciences. Psychology
HCH (pesticide)
Hydrophobic contaminant
Industrial applications and implications. Economical aspects
Lindane - analysis
Lindane - metabolism
Microorganisms
Miscellaneous
Organic contaminant
organic matter
Persistent organic pollutants (POP)
Phytoremediation
phytotoxicity
plant growth
Plant-associated bacteria
Pollution
Pollution abatement
Pots
Rhizoremediation
Rhodococcus
Rhodococcus erythropolis
soil
Soil - chemistry
Soil and sediments pollution
Soil Microbiology
Soil Pollutants - analysis
Soil Pollutants - metabolism
Soils
Sphingomonas
title Phytoremediation of hexachlorocyclohexane (HCH)-contaminated soils using Cytisus striatus and bacterial inoculants in soils with distinct organic matter content
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