Quantifying the biodegradation of phenanthrene by Pseudomonas stutzeri P16 in the presence of a nonionic surfactant
Article Abstract:
A combination of biodegradation and dissolution models explains the effect of the surfactant Tergitol NP-10 on the biodegradation of phenanthrene by Pseudomonas stutzeri P16. The surfactant promotes an increased bacterial growth rate by increasing the dissolution of the polycyclic aromatic hydrocarbon (PAH). The partitioning of the PAH between the micellar and the aqueous phases is instantaneous. The PAH in the aqueous phase is biologically available unlike that in the micellar phase. The model accurately predicts experimental results using biokinetic and dissolution factors.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1996
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Competitive metabolism of naphthalene, methylnaphthalenes, and fluorene by phenanthrene-degrading pseudomonads
Article Abstract:
Experimental studies help isolate two physiologically diverse bacteria, Pseudomonas stutzeri P-16 and P. saccharophila P-15, which exhibit ability to degrade fluorene, naphthalene and methylnaphthalenes. Kinetic studies of the influence of these compounds on initial rates of phenanthrene uptake reveal the competitive inhibition of uptake of phenanthrene by all these compounds. Metabolism of multiple polynuclear aromatic hydrocarbons (PAH) involves a common enzyme pathway. Various PAH-degrading organisms exhibit the competitive metabolism.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1995
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Stable-isotope probing of bacteria capable of degrading salicylate, naphthalene, or phenanthrene in a bioreactor treating contaminated soil
Article Abstract:
The organisms primarily responsible for degrading naphthalene or phenanthrene in a bioreactor actively degrading polycyclic aromatic hydrocarbons (PAHs) are identified and whether the addition of salicylate would select for these PAH-degrading organisms are determined. Incubations of different lengths were performed with naphthalene to test the potential for secondary utilization of the labeled compound in the longer incubation.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 2005
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- Abstracts: Inhibition of fungal colonization by Pseudoalteromonas tunicata provides a competitive advantage during surface colonization
- Abstracts: Enumeration of viable Listeria monocytogenes cells by real-time PCR with propidium monoazide and ethidium monoazide in the presence of dead cells
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