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Ecotoxicological as...
Ecotoxicological assessment of propiconazole using soil bacterial and fungal growth assays
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- Fernández-Calviño, David (author)
- University of Vigo,University of Copenhagen
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- Rousk, Johannes (author)
- Lund University,Lunds universitet,MEMEG,Biologiska institutionen,Naturvetenskapliga fakulteten,Mikrobiologisk ekologi,Forskargrupper vid Lunds universitet,Department of Biology,Faculty of Science,Microbial Ecology,Lund University Research Groups
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- Bååth, Erland (author)
- Lund University,Lunds universitet,MEMEG,Biologiska institutionen,Naturvetenskapliga fakulteten,Department of Biology,Faculty of Science
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- Bollmann, Ulla Elisabeth (author)
- Aarhus University
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- Bester, Kai (author)
- Aarhus University
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- Brandt, Kristian Koefoed (author)
- University of Copenhagen
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(creator_code:org_t)
- Elsevier BV, 2017
- 2017
- English 4 s.
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In: Applied Soil Ecology. - : Elsevier BV. - 0929-1393. ; 115, s. 27-30
- Related links:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Effects of the fungicide propiconazole on soil microorganisms were tested using [3H] leucine incorporation and [14C] acetate in ergosterol incorporation to measure bacterial and fungal growth inhibition, respectively. Growth was compared to basal respiration (BR) and substrate-induced respiration (SIR) in soil microcosms established according to the OECD 217 guideline. Fungal growth was most sensitive with IC50 values remaining around 300 mg kg−1 during 40 days of incubation. SIR was initially less sensitive (IC50 1300 mg kg−1), but IC50 values progressively decreased over time to reach 380 mg kg−1 after 40 days. Bacterial growth was affected at concentrations ≥200 mg kg−1, but exhibited more complex dose-response relationships possibly due to a combination of direct toxicity, bacterial community adaptation, and competitive release from the more severely affected fungi. BR was either stimulated or not affected by propiconazole. Our results indicate that group-specific endpoints targeting microbial growth will improve ecotoxicological assessment of toxicants for environmental risk assessment.
Subject headings
- NATURVETENSKAP -- Biologi -- Mikrobiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Microbiology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
Keyword
- Biocides
- Ecotoxicology
- Fungicides
- Microbial activity
- Soil microorganisms
Publication and Content Type
- art (subject category)
- ref (subject category)
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