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In-situ mineralization of chlorinated phenols by pelagic bacteria in lakes of differing humic content

Tranvik, Lars; Larsson, Per LU ; Okla, Lennart LU and Regnell, Olof LU (1991) In Environmental Toxicology and Chemistry 10(2). p.195-200
Abstract
The microbial mineralization of phenol and three chlorinated phenols (3,4-dichlorophenol, 2,4,5-trichlorophenol and pentachlorophenol) in the water column of 23 pristine, oligotrophic lakes of different humic content was investigated. During short-term (approximately 2 d) in situ incubations of water samples amended with C-14-labeled phenolic compounds, the fraction of the added pollutant mineralized to (CO2)-C-14 was positively correlated with water color (an estimate of humic content) and the total organic carbon concentration of the water. The rate of mineralization per bacterial cell was not correlated with humic content, due to increased bacterial abundance with increasing humic content. Hence, the higher mineralization rate in humic... (More)
The microbial mineralization of phenol and three chlorinated phenols (3,4-dichlorophenol, 2,4,5-trichlorophenol and pentachlorophenol) in the water column of 23 pristine, oligotrophic lakes of different humic content was investigated. During short-term (approximately 2 d) in situ incubations of water samples amended with C-14-labeled phenolic compounds, the fraction of the added pollutant mineralized to (CO2)-C-14 was positively correlated with water color (an estimate of humic content) and the total organic carbon concentration of the water. The rate of mineralization per bacterial cell was not correlated with humic content, due to increased bacterial abundance with increasing humic content. Hence, the higher mineralization rate in humic lakes than in clear-water lakes was probably a result of higher bacterial abundance rather than being an effect of bacterial cells having a higher potential for the degradation of such compounds. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Environmental Toxicology and Chemistry
volume
10
issue
2
pages
195 - 200
publisher
SETAC and Alliance Communications Group
external identifiers
  • scopus:0025971065
ISSN
0730-7268
DOI
10.1897/1552-8618(1991)10[195:ISMOCP]2.0.CO;2
language
English
LU publication?
yes
id
7d0dfb4f-f8ea-467b-9ef0-d33cb18168b6 (old id 8164286)
date added to LUP
2015-11-04 13:51:42
date last changed
2017-01-01 04:27:39
@article{7d0dfb4f-f8ea-467b-9ef0-d33cb18168b6,
  abstract     = {The microbial mineralization of phenol and three chlorinated phenols (3,4-dichlorophenol, 2,4,5-trichlorophenol and pentachlorophenol) in the water column of 23 pristine, oligotrophic lakes of different humic content was investigated. During short-term (approximately 2 d) in situ incubations of water samples amended with C-14-labeled phenolic compounds, the fraction of the added pollutant mineralized to (CO2)-C-14 was positively correlated with water color (an estimate of humic content) and the total organic carbon concentration of the water. The rate of mineralization per bacterial cell was not correlated with humic content, due to increased bacterial abundance with increasing humic content. Hence, the higher mineralization rate in humic lakes than in clear-water lakes was probably a result of higher bacterial abundance rather than being an effect of bacterial cells having a higher potential for the degradation of such compounds.},
  author       = {Tranvik, Lars and Larsson, Per and Okla, Lennart and Regnell, Olof},
  issn         = {0730-7268},
  language     = {eng},
  number       = {2},
  pages        = {195--200},
  publisher    = {SETAC and Alliance Communications Group},
  series       = {Environmental Toxicology and Chemistry},
  title        = {In-situ mineralization of chlorinated phenols by pelagic bacteria in lakes of differing humic content},
  url          = {http://dx.doi.org/10.1897/1552-8618(1991)10[195:ISMOCP]2.0.CO;2},
  volume       = {10},
  year         = {1991},
}