Effects of dissolved organic matter (DOM) at environmentally relevant carbon concentrations on atrazine degradation by Chelatobacter heintzii SalB
Abstract The dissolved organic matter (DOM) is the term used for organic components of natural origin present in the soil solution and is probably the most available C-source that primes microbial activity in subsoils. Contrasting effects of organic C components on pesticide degradation have been re...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Cheyns, Karlien [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2011 |
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| Schlagwörter: |
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| Anmerkung: |
© Springer-Verlag 2011 |
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| Übergeordnetes Werk: |
Enthalten in: Applied microbiology and biotechnology - Springer-Verlag, 1984, 95(2011), 5 vom: 13. Dez., Seite 1333-1341 |
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| Übergeordnetes Werk: |
volume:95 ; year:2011 ; number:5 ; day:13 ; month:12 ; pages:1333-1341 |
| Links: |
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| DOI / URN: |
10.1007/s00253-011-3741-1 |
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OLC2050743629 |
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| 520 | |a Abstract The dissolved organic matter (DOM) is the term used for organic components of natural origin present in the soil solution and is probably the most available C-source that primes microbial activity in subsoils. Contrasting effects of organic C components on pesticide degradation have been reported; however, most studies have used model organic compounds with compositions and concentrations which differ substantially from those found in the environment. Degradation of atrazine (AT) by Chelatobacter heintzii SalB was monitored in liquid batch assays in the absence or presence of well-defined model C compounds (glucose, gluconate and citrate) as model DOM (mDOM) or complex, less-defined, environmental DOM solutions (eDOM: isolated humic substances, soil and plant residue extracts) at environmentally relevant concentrations. Glucose significantly increased AT degradation rate by more than a factor of 8 at and above 2.5 mg C $ L^{ − 1} $. Optical density measurements showed that this stimulation is related to microbial growth. Gluconate and citrate had no effects unless at non-relevant concentrations (1,000 mg DOC $ L^{ − 1} $) at which stimulations (gluconate) or inhibitions (citrate) were found. The effects of eDOM added at 10 mg DOC $ L^{ − 1} $ on AT degradation were generally small. The AT degradation time was reduced by factors 1.4–1.9 in the presence of humic acids and eDOM from soils amended with plant residues; however, no effects were found for fulvic acids or eDOM from a soil leachate solution or extracted from unamended peat or forest soil. In conclusion, DOM supplied as both mDOM and eDOM did not inhibit AT degradation at environmentally relevant concentrations, and stimulation can be found for selected DOM samples and this is partly related to its effect on growth. | ||
| 650 | 4 | |a Atrazine | |
| 650 | 4 | |a Biodegradation | |
| 650 | 4 | |a Dissolved organic matter | |
| 650 | 4 | |a SalB | |
| 700 | 1 | |a Calcoen, Jasper |4 aut | |
| 700 | 1 | |a Martin-Laurent, Fabrice |4 aut | |
| 700 | 1 | |a Bru, David |4 aut | |
| 700 | 1 | |a Smolders, Erik |4 aut | |
| 700 | 1 | |a Springael, Dirk |4 aut | |
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10.1007/s00253-011-3741-1 doi (DE-627)OLC2050743629 (DE-He213)s00253-011-3741-1-p DE-627 ger DE-627 rakwb eng 570 VZ 12 ssgn BIODIV DE-30 fid Cheyns, Karlien verfasserin aut Effects of dissolved organic matter (DOM) at environmentally relevant carbon concentrations on atrazine degradation by Chelatobacter heintzii SalB 2011 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag 2011 Abstract The dissolved organic matter (DOM) is the term used for organic components of natural origin present in the soil solution and is probably the most available C-source that primes microbial activity in subsoils. Contrasting effects of organic C components on pesticide degradation have been reported; however, most studies have used model organic compounds with compositions and concentrations which differ substantially from those found in the environment. Degradation of atrazine (AT) by Chelatobacter heintzii SalB was monitored in liquid batch assays in the absence or presence of well-defined model C compounds (glucose, gluconate and citrate) as model DOM (mDOM) or complex, less-defined, environmental DOM solutions (eDOM: isolated humic substances, soil and plant residue extracts) at environmentally relevant concentrations. Glucose significantly increased AT degradation rate by more than a factor of 8 at and above 2.5 mg C $ L^{ − 1} $. Optical density measurements showed that this stimulation is related to microbial growth. Gluconate and citrate had no effects unless at non-relevant concentrations (1,000 mg DOC $ L^{ − 1} $) at which stimulations (gluconate) or inhibitions (citrate) were found. The effects of eDOM added at 10 mg DOC $ L^{ − 1} $ on AT degradation were generally small. The AT degradation time was reduced by factors 1.4–1.9 in the presence of humic acids and eDOM from soils amended with plant residues; however, no effects were found for fulvic acids or eDOM from a soil leachate solution or extracted from unamended peat or forest soil. In conclusion, DOM supplied as both mDOM and eDOM did not inhibit AT degradation at environmentally relevant concentrations, and stimulation can be found for selected DOM samples and this is partly related to its effect on growth. Atrazine Biodegradation Dissolved organic matter SalB Calcoen, Jasper aut Martin-Laurent, Fabrice aut Bru, David aut Smolders, Erik aut Springael, Dirk aut Enthalten in Applied microbiology and biotechnology Springer-Verlag, 1984 95(2011), 5 vom: 13. Dez., Seite 1333-1341 (DE-627)129942634 (DE-600)392453-1 (DE-576)015507750 0175-7598 nnns volume:95 year:2011 number:5 day:13 month:12 pages:1333-1341 https://doi.org/10.1007/s00253-011-3741-1 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_21 GBV_ILN_23 GBV_ILN_40 GBV_ILN_69 GBV_ILN_70 GBV_ILN_130 GBV_ILN_267 GBV_ILN_2004 GBV_ILN_2018 GBV_ILN_4012 GBV_ILN_4082 GBV_ILN_4277 GBV_ILN_4305 AR 95 2011 5 13 12 1333-1341 |
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10.1007/s00253-011-3741-1 doi (DE-627)OLC2050743629 (DE-He213)s00253-011-3741-1-p DE-627 ger DE-627 rakwb eng 570 VZ 12 ssgn BIODIV DE-30 fid Cheyns, Karlien verfasserin aut Effects of dissolved organic matter (DOM) at environmentally relevant carbon concentrations on atrazine degradation by Chelatobacter heintzii SalB 2011 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag 2011 Abstract The dissolved organic matter (DOM) is the term used for organic components of natural origin present in the soil solution and is probably the most available C-source that primes microbial activity in subsoils. Contrasting effects of organic C components on pesticide degradation have been reported; however, most studies have used model organic compounds with compositions and concentrations which differ substantially from those found in the environment. Degradation of atrazine (AT) by Chelatobacter heintzii SalB was monitored in liquid batch assays in the absence or presence of well-defined model C compounds (glucose, gluconate and citrate) as model DOM (mDOM) or complex, less-defined, environmental DOM solutions (eDOM: isolated humic substances, soil and plant residue extracts) at environmentally relevant concentrations. Glucose significantly increased AT degradation rate by more than a factor of 8 at and above 2.5 mg C $ L^{ − 1} $. Optical density measurements showed that this stimulation is related to microbial growth. Gluconate and citrate had no effects unless at non-relevant concentrations (1,000 mg DOC $ L^{ − 1} $) at which stimulations (gluconate) or inhibitions (citrate) were found. The effects of eDOM added at 10 mg DOC $ L^{ − 1} $ on AT degradation were generally small. The AT degradation time was reduced by factors 1.4–1.9 in the presence of humic acids and eDOM from soils amended with plant residues; however, no effects were found for fulvic acids or eDOM from a soil leachate solution or extracted from unamended peat or forest soil. In conclusion, DOM supplied as both mDOM and eDOM did not inhibit AT degradation at environmentally relevant concentrations, and stimulation can be found for selected DOM samples and this is partly related to its effect on growth. Atrazine Biodegradation Dissolved organic matter SalB Calcoen, Jasper aut Martin-Laurent, Fabrice aut Bru, David aut Smolders, Erik aut Springael, Dirk aut Enthalten in Applied microbiology and biotechnology Springer-Verlag, 1984 95(2011), 5 vom: 13. Dez., Seite 1333-1341 (DE-627)129942634 (DE-600)392453-1 (DE-576)015507750 0175-7598 nnns volume:95 year:2011 number:5 day:13 month:12 pages:1333-1341 https://doi.org/10.1007/s00253-011-3741-1 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_21 GBV_ILN_23 GBV_ILN_40 GBV_ILN_69 GBV_ILN_70 GBV_ILN_130 GBV_ILN_267 GBV_ILN_2004 GBV_ILN_2018 GBV_ILN_4012 GBV_ILN_4082 GBV_ILN_4277 GBV_ILN_4305 AR 95 2011 5 13 12 1333-1341 |
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10.1007/s00253-011-3741-1 doi (DE-627)OLC2050743629 (DE-He213)s00253-011-3741-1-p DE-627 ger DE-627 rakwb eng 570 VZ 12 ssgn BIODIV DE-30 fid Cheyns, Karlien verfasserin aut Effects of dissolved organic matter (DOM) at environmentally relevant carbon concentrations on atrazine degradation by Chelatobacter heintzii SalB 2011 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag 2011 Abstract The dissolved organic matter (DOM) is the term used for organic components of natural origin present in the soil solution and is probably the most available C-source that primes microbial activity in subsoils. Contrasting effects of organic C components on pesticide degradation have been reported; however, most studies have used model organic compounds with compositions and concentrations which differ substantially from those found in the environment. Degradation of atrazine (AT) by Chelatobacter heintzii SalB was monitored in liquid batch assays in the absence or presence of well-defined model C compounds (glucose, gluconate and citrate) as model DOM (mDOM) or complex, less-defined, environmental DOM solutions (eDOM: isolated humic substances, soil and plant residue extracts) at environmentally relevant concentrations. Glucose significantly increased AT degradation rate by more than a factor of 8 at and above 2.5 mg C $ L^{ − 1} $. Optical density measurements showed that this stimulation is related to microbial growth. Gluconate and citrate had no effects unless at non-relevant concentrations (1,000 mg DOC $ L^{ − 1} $) at which stimulations (gluconate) or inhibitions (citrate) were found. The effects of eDOM added at 10 mg DOC $ L^{ − 1} $ on AT degradation were generally small. The AT degradation time was reduced by factors 1.4–1.9 in the presence of humic acids and eDOM from soils amended with plant residues; however, no effects were found for fulvic acids or eDOM from a soil leachate solution or extracted from unamended peat or forest soil. In conclusion, DOM supplied as both mDOM and eDOM did not inhibit AT degradation at environmentally relevant concentrations, and stimulation can be found for selected DOM samples and this is partly related to its effect on growth. Atrazine Biodegradation Dissolved organic matter SalB Calcoen, Jasper aut Martin-Laurent, Fabrice aut Bru, David aut Smolders, Erik aut Springael, Dirk aut Enthalten in Applied microbiology and biotechnology Springer-Verlag, 1984 95(2011), 5 vom: 13. Dez., Seite 1333-1341 (DE-627)129942634 (DE-600)392453-1 (DE-576)015507750 0175-7598 nnns volume:95 year:2011 number:5 day:13 month:12 pages:1333-1341 https://doi.org/10.1007/s00253-011-3741-1 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_21 GBV_ILN_23 GBV_ILN_40 GBV_ILN_69 GBV_ILN_70 GBV_ILN_130 GBV_ILN_267 GBV_ILN_2004 GBV_ILN_2018 GBV_ILN_4012 GBV_ILN_4082 GBV_ILN_4277 GBV_ILN_4305 AR 95 2011 5 13 12 1333-1341 |
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10.1007/s00253-011-3741-1 doi (DE-627)OLC2050743629 (DE-He213)s00253-011-3741-1-p DE-627 ger DE-627 rakwb eng 570 VZ 12 ssgn BIODIV DE-30 fid Cheyns, Karlien verfasserin aut Effects of dissolved organic matter (DOM) at environmentally relevant carbon concentrations on atrazine degradation by Chelatobacter heintzii SalB 2011 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag 2011 Abstract The dissolved organic matter (DOM) is the term used for organic components of natural origin present in the soil solution and is probably the most available C-source that primes microbial activity in subsoils. Contrasting effects of organic C components on pesticide degradation have been reported; however, most studies have used model organic compounds with compositions and concentrations which differ substantially from those found in the environment. Degradation of atrazine (AT) by Chelatobacter heintzii SalB was monitored in liquid batch assays in the absence or presence of well-defined model C compounds (glucose, gluconate and citrate) as model DOM (mDOM) or complex, less-defined, environmental DOM solutions (eDOM: isolated humic substances, soil and plant residue extracts) at environmentally relevant concentrations. Glucose significantly increased AT degradation rate by more than a factor of 8 at and above 2.5 mg C $ L^{ − 1} $. Optical density measurements showed that this stimulation is related to microbial growth. Gluconate and citrate had no effects unless at non-relevant concentrations (1,000 mg DOC $ L^{ − 1} $) at which stimulations (gluconate) or inhibitions (citrate) were found. The effects of eDOM added at 10 mg DOC $ L^{ − 1} $ on AT degradation were generally small. The AT degradation time was reduced by factors 1.4–1.9 in the presence of humic acids and eDOM from soils amended with plant residues; however, no effects were found for fulvic acids or eDOM from a soil leachate solution or extracted from unamended peat or forest soil. In conclusion, DOM supplied as both mDOM and eDOM did not inhibit AT degradation at environmentally relevant concentrations, and stimulation can be found for selected DOM samples and this is partly related to its effect on growth. Atrazine Biodegradation Dissolved organic matter SalB Calcoen, Jasper aut Martin-Laurent, Fabrice aut Bru, David aut Smolders, Erik aut Springael, Dirk aut Enthalten in Applied microbiology and biotechnology Springer-Verlag, 1984 95(2011), 5 vom: 13. Dez., Seite 1333-1341 (DE-627)129942634 (DE-600)392453-1 (DE-576)015507750 0175-7598 nnns volume:95 year:2011 number:5 day:13 month:12 pages:1333-1341 https://doi.org/10.1007/s00253-011-3741-1 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_21 GBV_ILN_23 GBV_ILN_40 GBV_ILN_69 GBV_ILN_70 GBV_ILN_130 GBV_ILN_267 GBV_ILN_2004 GBV_ILN_2018 GBV_ILN_4012 GBV_ILN_4082 GBV_ILN_4277 GBV_ILN_4305 AR 95 2011 5 13 12 1333-1341 |
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10.1007/s00253-011-3741-1 doi (DE-627)OLC2050743629 (DE-He213)s00253-011-3741-1-p DE-627 ger DE-627 rakwb eng 570 VZ 12 ssgn BIODIV DE-30 fid Cheyns, Karlien verfasserin aut Effects of dissolved organic matter (DOM) at environmentally relevant carbon concentrations on atrazine degradation by Chelatobacter heintzii SalB 2011 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag 2011 Abstract The dissolved organic matter (DOM) is the term used for organic components of natural origin present in the soil solution and is probably the most available C-source that primes microbial activity in subsoils. Contrasting effects of organic C components on pesticide degradation have been reported; however, most studies have used model organic compounds with compositions and concentrations which differ substantially from those found in the environment. Degradation of atrazine (AT) by Chelatobacter heintzii SalB was monitored in liquid batch assays in the absence or presence of well-defined model C compounds (glucose, gluconate and citrate) as model DOM (mDOM) or complex, less-defined, environmental DOM solutions (eDOM: isolated humic substances, soil and plant residue extracts) at environmentally relevant concentrations. Glucose significantly increased AT degradation rate by more than a factor of 8 at and above 2.5 mg C $ L^{ − 1} $. Optical density measurements showed that this stimulation is related to microbial growth. Gluconate and citrate had no effects unless at non-relevant concentrations (1,000 mg DOC $ L^{ − 1} $) at which stimulations (gluconate) or inhibitions (citrate) were found. The effects of eDOM added at 10 mg DOC $ L^{ − 1} $ on AT degradation were generally small. The AT degradation time was reduced by factors 1.4–1.9 in the presence of humic acids and eDOM from soils amended with plant residues; however, no effects were found for fulvic acids or eDOM from a soil leachate solution or extracted from unamended peat or forest soil. In conclusion, DOM supplied as both mDOM and eDOM did not inhibit AT degradation at environmentally relevant concentrations, and stimulation can be found for selected DOM samples and this is partly related to its effect on growth. Atrazine Biodegradation Dissolved organic matter SalB Calcoen, Jasper aut Martin-Laurent, Fabrice aut Bru, David aut Smolders, Erik aut Springael, Dirk aut Enthalten in Applied microbiology and biotechnology Springer-Verlag, 1984 95(2011), 5 vom: 13. Dez., Seite 1333-1341 (DE-627)129942634 (DE-600)392453-1 (DE-576)015507750 0175-7598 nnns volume:95 year:2011 number:5 day:13 month:12 pages:1333-1341 https://doi.org/10.1007/s00253-011-3741-1 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_21 GBV_ILN_23 GBV_ILN_40 GBV_ILN_69 GBV_ILN_70 GBV_ILN_130 GBV_ILN_267 GBV_ILN_2004 GBV_ILN_2018 GBV_ILN_4012 GBV_ILN_4082 GBV_ILN_4277 GBV_ILN_4305 AR 95 2011 5 13 12 1333-1341 |
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Enthalten in Applied microbiology and biotechnology 95(2011), 5 vom: 13. Dez., Seite 1333-1341 volume:95 year:2011 number:5 day:13 month:12 pages:1333-1341 |
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effects of dissolved organic matter (dom) at environmentally relevant carbon concentrations on atrazine degradation by chelatobacter heintzii salb |
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Effects of dissolved organic matter (DOM) at environmentally relevant carbon concentrations on atrazine degradation by Chelatobacter heintzii SalB |
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Abstract The dissolved organic matter (DOM) is the term used for organic components of natural origin present in the soil solution and is probably the most available C-source that primes microbial activity in subsoils. Contrasting effects of organic C components on pesticide degradation have been reported; however, most studies have used model organic compounds with compositions and concentrations which differ substantially from those found in the environment. Degradation of atrazine (AT) by Chelatobacter heintzii SalB was monitored in liquid batch assays in the absence or presence of well-defined model C compounds (glucose, gluconate and citrate) as model DOM (mDOM) or complex, less-defined, environmental DOM solutions (eDOM: isolated humic substances, soil and plant residue extracts) at environmentally relevant concentrations. Glucose significantly increased AT degradation rate by more than a factor of 8 at and above 2.5 mg C $ L^{ − 1} $. Optical density measurements showed that this stimulation is related to microbial growth. Gluconate and citrate had no effects unless at non-relevant concentrations (1,000 mg DOC $ L^{ − 1} $) at which stimulations (gluconate) or inhibitions (citrate) were found. The effects of eDOM added at 10 mg DOC $ L^{ − 1} $ on AT degradation were generally small. The AT degradation time was reduced by factors 1.4–1.9 in the presence of humic acids and eDOM from soils amended with plant residues; however, no effects were found for fulvic acids or eDOM from a soil leachate solution or extracted from unamended peat or forest soil. In conclusion, DOM supplied as both mDOM and eDOM did not inhibit AT degradation at environmentally relevant concentrations, and stimulation can be found for selected DOM samples and this is partly related to its effect on growth. © Springer-Verlag 2011 |
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Abstract The dissolved organic matter (DOM) is the term used for organic components of natural origin present in the soil solution and is probably the most available C-source that primes microbial activity in subsoils. Contrasting effects of organic C components on pesticide degradation have been reported; however, most studies have used model organic compounds with compositions and concentrations which differ substantially from those found in the environment. Degradation of atrazine (AT) by Chelatobacter heintzii SalB was monitored in liquid batch assays in the absence or presence of well-defined model C compounds (glucose, gluconate and citrate) as model DOM (mDOM) or complex, less-defined, environmental DOM solutions (eDOM: isolated humic substances, soil and plant residue extracts) at environmentally relevant concentrations. Glucose significantly increased AT degradation rate by more than a factor of 8 at and above 2.5 mg C $ L^{ − 1} $. Optical density measurements showed that this stimulation is related to microbial growth. Gluconate and citrate had no effects unless at non-relevant concentrations (1,000 mg DOC $ L^{ − 1} $) at which stimulations (gluconate) or inhibitions (citrate) were found. The effects of eDOM added at 10 mg DOC $ L^{ − 1} $ on AT degradation were generally small. The AT degradation time was reduced by factors 1.4–1.9 in the presence of humic acids and eDOM from soils amended with plant residues; however, no effects were found for fulvic acids or eDOM from a soil leachate solution or extracted from unamended peat or forest soil. In conclusion, DOM supplied as both mDOM and eDOM did not inhibit AT degradation at environmentally relevant concentrations, and stimulation can be found for selected DOM samples and this is partly related to its effect on growth. © Springer-Verlag 2011 |
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Abstract The dissolved organic matter (DOM) is the term used for organic components of natural origin present in the soil solution and is probably the most available C-source that primes microbial activity in subsoils. Contrasting effects of organic C components on pesticide degradation have been reported; however, most studies have used model organic compounds with compositions and concentrations which differ substantially from those found in the environment. Degradation of atrazine (AT) by Chelatobacter heintzii SalB was monitored in liquid batch assays in the absence or presence of well-defined model C compounds (glucose, gluconate and citrate) as model DOM (mDOM) or complex, less-defined, environmental DOM solutions (eDOM: isolated humic substances, soil and plant residue extracts) at environmentally relevant concentrations. Glucose significantly increased AT degradation rate by more than a factor of 8 at and above 2.5 mg C $ L^{ − 1} $. Optical density measurements showed that this stimulation is related to microbial growth. Gluconate and citrate had no effects unless at non-relevant concentrations (1,000 mg DOC $ L^{ − 1} $) at which stimulations (gluconate) or inhibitions (citrate) were found. The effects of eDOM added at 10 mg DOC $ L^{ − 1} $ on AT degradation were generally small. The AT degradation time was reduced by factors 1.4–1.9 in the presence of humic acids and eDOM from soils amended with plant residues; however, no effects were found for fulvic acids or eDOM from a soil leachate solution or extracted from unamended peat or forest soil. In conclusion, DOM supplied as both mDOM and eDOM did not inhibit AT degradation at environmentally relevant concentrations, and stimulation can be found for selected DOM samples and this is partly related to its effect on growth. © Springer-Verlag 2011 |
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Effects of dissolved organic matter (DOM) at environmentally relevant carbon concentrations on atrazine degradation by Chelatobacter heintzii SalB |
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