Effects of triclosan on soil microbial respiration.
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| Title: | Effects of triclosan on soil microbial respiration. |
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| Authors: | Butler, Emma1 e.butler@cranfield.ac.uk, Whelan, Michael J.1, Ritz, Karl1, Sakrabani, Ruben1, van Egmond, Roger2 |
| Source: | Environmental Toxicology & Chemistry. Feb2011, Vol. 30 Issue 2, p360-366. 7p. 6 Graphs. |
| Subjects: | Soil pollution, Bioavailability, Absorption, Organic compounds, Clay, Soil microbial ecology, Microbial respiration |
| Abstract: | The antimicrobial substance triclosan has widespread use in personal care products and can enter the terrestrial environment if sewage sludge is applied to soil. The inhibitory effects of triclosan on basal and substrate-induced respiration (SIR) of three different soils were investigated. Soils were dosed and later redosed with four nominal triclosan concentrations, and respiration rates were measured over time. In each soil, a significant depression in basal respiration was noted after initial dosing, followed by a recovery. The initial extent of respiration inhibition was positively related to the triclosan dose, i.e., respiration was most inhibited at highest triclosan concentration. Differences in respiration inhibition between soils at equivalent dose were inversely correlated with organic matter and clay content, suggesting that the bioavailability of triclosan might have been reduced by sorption to organic carbon or by physical protection in micropores. Substrate-induced respiration was also reduced by the addition of triclosan and subsequently recovered. After redosing with triclosan, basal respiration was enhanced in all soils, suggesting that it was acting as a substrate. However, redosing resulted in SIR inhibition in all treatments above 10 mg triclosan kg in all three soils, although all soils appeared to be more resistant to perturbation than following initial dosing. The present study suggests that triclosan inhibits soil respiration but that a subsequent acclimation of the microbial community occurs. Environ. Toxicol. Chem. 2011;30:360-366. © 2010 SETAC [ABSTRACT FROM AUTHOR] |
| Copyright of Environmental Toxicology & Chemistry is the property of Oxford University Press / USA and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 57292028 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Effects of triclosan on soil microbial respiration. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Butler%2C+Emma%22">Butler, Emma</searchLink><relatesTo>1</relatesTo><i> e.butler@cranfield.ac.uk</i><br /><searchLink fieldCode="AR" term="%22Whelan%2C+Michael+J%2E%22">Whelan, Michael J.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Ritz%2C+Karl%22">Ritz, Karl</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Sakrabani%2C+Ruben%22">Sakrabani, Ruben</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22van+Egmond%2C+Roger%22">van Egmond, Roger</searchLink><relatesTo>2</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Environmental+Toxicology+%26+Chemistry%22">Environmental Toxicology & Chemistry</searchLink>. Feb2011, Vol. 30 Issue 2, p360-366. 7p. 6 Graphs. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Soil+pollution%22">Soil pollution</searchLink><br /><searchLink fieldCode="DE" term="%22Bioavailability%22">Bioavailability</searchLink><br /><searchLink fieldCode="DE" term="%22Absorption%22">Absorption</searchLink><br /><searchLink fieldCode="DE" term="%22Organic+compounds%22">Organic compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Clay%22">Clay</searchLink><br /><searchLink fieldCode="DE" term="%22Soil+microbial+ecology%22">Soil microbial ecology</searchLink><br /><searchLink fieldCode="DE" term="%22Microbial+respiration%22">Microbial respiration</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The antimicrobial substance triclosan has widespread use in personal care products and can enter the terrestrial environment if sewage sludge is applied to soil. The inhibitory effects of triclosan on basal and substrate-induced respiration (SIR) of three different soils were investigated. Soils were dosed and later redosed with four nominal triclosan concentrations, and respiration rates were measured over time. In each soil, a significant depression in basal respiration was noted after initial dosing, followed by a recovery. The initial extent of respiration inhibition was positively related to the triclosan dose, i.e., respiration was most inhibited at highest triclosan concentration. Differences in respiration inhibition between soils at equivalent dose were inversely correlated with organic matter and clay content, suggesting that the bioavailability of triclosan might have been reduced by sorption to organic carbon or by physical protection in micropores. Substrate-induced respiration was also reduced by the addition of triclosan and subsequently recovered. After redosing with triclosan, basal respiration was enhanced in all soils, suggesting that it was acting as a substrate. However, redosing resulted in SIR inhibition in all treatments above 10 mg triclosan kg in all three soils, although all soils appeared to be more resistant to perturbation than following initial dosing. The present study suggests that triclosan inhibits soil respiration but that a subsequent acclimation of the microbial community occurs. Environ. Toxicol. Chem. 2011;30:360-366. © 2010 SETAC [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Environmental Toxicology & Chemistry is the property of Oxford University Press / USA and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1002/etc.405 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 7 StartPage: 360 Subjects: – SubjectFull: Soil pollution Type: general – SubjectFull: Bioavailability Type: general – SubjectFull: Absorption Type: general – SubjectFull: Organic compounds Type: general – SubjectFull: Clay Type: general – SubjectFull: Soil microbial ecology Type: general – SubjectFull: Microbial respiration Type: general Titles: – TitleFull: Effects of triclosan on soil microbial respiration. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Butler, Emma – PersonEntity: Name: NameFull: Whelan, Michael J. – PersonEntity: Name: NameFull: Ritz, Karl – PersonEntity: Name: NameFull: Sakrabani, Ruben – PersonEntity: Name: NameFull: van Egmond, Roger IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 02 Text: Feb2011 Type: published Y: 2011 Identifiers: – Type: issn-print Value: 07307268 Numbering: – Type: volume Value: 30 – Type: issue Value: 2 Titles: – TitleFull: Environmental Toxicology & Chemistry Type: main |
| ResultId | 1 |
