Details zur Publikation |
| Kategorie | Textpublikation |
| Referenztyp | Buchkapitel |
| DOI | 10.1201/9781003762645 |
| Volltext | Autorenversion |
| Titel (primär) | Simultaneous degradation of atrazine and phenol by Pseudomonas sp. ADP: Effects of toxicity and adaptation |
| Titel (sekundär) | Environmental Biotechnology ESEB 2004 |
| Autor | Neumann, G.; Kabelitz, N.; Heipieper, H.J.
; Teras, R.; Monson, L.; Kivisaar, M. |
| Erscheinungsjahr | 2026 |
| Department | MEB |
| Sprache | englisch |
| Topic | T7 Bioeconomy |
| Abstract | The strain Pseudomonas sp. ADP is only able to degrade atrazine as sole nitrogen-source and therefore needs a carbon- and energy-source for growth. In addition to the typical C-source for Pseudomonas, https://www.w3.org/1998/Math/MathML" display="inline"> N a 2 succinate, the strain can also grow with phenol as carbon source. Thereby, phenol is oxidized to catechol by a multi-component phenol hydroxylase. Catechol is degraded via the ortho-pathway using the catechol-1, 2-dioxygenase. It was possible to stimulate the strain in order to degrade very high concentrations of phenol https://www.w3.org/1998/Math/MathML" display="inline"> ( 1000 m g / l ) and atrazine https://www.w3.org/1998/Math/MathML" display="inline"> ( 150 m g / l ) simultaneously. With cyanuric acid, the major intermediate of atrazine degradation, as N -source both the growth rate and the phenol degradation rate were similar to those measured with ammonia as N -source. With atrazine as N -source growth rate and the phenol degradation rate were reduced to about https://www.w3.org/1998/Math/MathML" display="inline"> 35 % of those data obtained for cyanuric acid. This presents clear evidence that although the first three enzymes of the atrazine degradation pathway are constitutively present, either these enzymes or the uptake of atrazine are the bottleneck that diminishes the growth rate of Pseudomonas sp. ADP with atrazine as N -source. Whereas atrazine and cyanuric acid showed no significant toxic effect on the cells, phenol reduces growth and activates/induces typical membrane-adaptive responses known for the genus Pseudomonas. Therefore, Pseudomonas sp. ADP is an ideal bacterium to investigate the regulatory interactions between several catabolic genes and stress response mechanisms during the simultaneous degradation of toxic phenolic compounds and a xenobiotic N-source such as atrazine. |
| dauerhafte UFZ-Verlinkung | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=31952 |
| Neumann, G., Kabelitz, N., Heipieper, H.J., Teras, R., Monson, L., Kivisaar, M. (2026): Simultaneous degradation of atrazine and phenol by Pseudomonas sp. ADP: Effects of toxicity and adaptation Environmental Biotechnology ESEB 2004 10.1201/9781003762645 |
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