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Biodegradation of Fluorene at Low Temperature by a Psychrotrophic Sphingomonas sp. L-138
Sokolovská, I., Wattiau, P., Gerin, P. and Agathos, S. N. Biodegradation of Fluorene at Low Temperature by a Psychrotrophic Sphingomonas sp. L-138 Chemical papers, Vol.56, No. 1, 2002, 36-40
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Document type:
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Článok z časopisu / Journal Article |
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Collection:
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Chemical papers
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| Attached Files |
| Name |
Description |
MIMEType |
Size |
Downloads |
n561a36.pdf
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561a36.pdf |
application/pdf |
174.99KB |
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| Author(s) |
Sokolovská, I.
Wattiau, P.
Gerin, P.
Agathos, S. N.
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| Title |
Biodegradation of Fluorene at Low Temperature by a Psychrotrophic Sphingomonas sp. L-138
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| Journal name |
Chemical papers
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| Publication date |
2002
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| Year available |
2002
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| Volume number |
56
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| Issue number |
1
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| ISSN |
0366-6352
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| Start page |
36
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| End page |
40
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| Place of publication |
Poland
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| Publisher |
Versita
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| Collection year |
2002
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| Language |
english
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| Subject |
270000 Biological Sciences
270100 Biochemistry and Cell Biology
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| Abstract/Summary |
The ability of a psychrotrophic Sphingomonas sp. L-138 toassimilate fluorene was assessed and characterized in a liquid minimal mediumat low temperature (12 and 20ºC). Total fluorene mineralization wasaccomplished at both temperatures and the maximal rate of fluorene degradationwas determined to be 4.8 mg dm−3d−1 at 20ºC and 3.2 mg dm−3d−1 at 12ºC. It wascon_rmed that this strain transforms the fluorene through the so-called "five-memberedattack" and the expected metabolites of this pathway, 9-fluorenol,9-fluorenone, phthalic acid, and protocatechuic acid, were detected in extractsof the culture broth. The specific growth rate of Sphingomonas sp.L-138 depends upon the initial fluorene concentration and it seems to belimited by the specific surface area of fluorene crystals. It was shown thatthe expression of the fluorene degradation pathway was found constitutive forthis strain and did not depend on the substrate (glucose or fluorene) used in apre-culture stage.
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