Abstract
Non-steady-state mechanistic models were developed to examine the dynamics of organic pollutant utilization, microbial competition, inhibition and predation in a multi trophic system populated by bacteria of different growth rates and protozoa in a continuously mixed flow reactor and a batch reactor. The levels of substrate and cells were modeled during the biodegradation of naphthalene (a moderately bioavailable semi-volatile organic pollutant) by two bacteria in the presence of a predator assuming other nutrients were present in excess. The model predicts that multiple bacteria and predator species can co-exist in the system only if they differ in inhibition capacity, selective predation rate, and/or ability to employ predation defense mechanisms. These models further predict that predation can enhance the process of bioremediation, similar to what has been observed in some experimental studies. Together, these results provide a mechanistic model framework to support the idea that increased species diversity may increase the ability of microbial ecosystems to biodegrade pollutants.
References
Mar 1, 1990·Applied and Environmental Microbiology·J M GonzalezB F Sherr
Feb 17, 1998·Applied and Environmental Microbiology·N E KinnerL D Meeker
May 9, 1998·Applied and Environmental Microbiology·M W Hahn, M G Höfle
Jan 5, 1999·Applied and Environmental Microbiology·M W HahnM G Höfle
Mar 2, 1999·Applied and Environmental Microbiology·K JürgensR Amann
Nov 5, 1999·Applied and Environmental Microbiology·M W Hahn, M G Höfle
Jan 11, 2001·FEMS Microbiology Letters·R G Mattison, S Harayama
Feb 7, 2001·Applied and Environmental Microbiology·C Matz, K Jürgens
Apr 11, 2001·FEMS Microbiology Ecology·M W. Hahn, M G. Höfle
May 25, 2002·Microbial Ecology·T. PoschB. Sonntag
Nov 27, 2002·Antonie van Leeuwenhoek·Klaus Jürgens, Carsten Matz
Nov 27, 2002·Applied and Environmental Microbiology·Regin RønnJames I Prosser
Apr 22, 2003·Microbial Ecology·C Matz, K Jürgens
Nov 26, 2004·Risk Analysis : an Official Publication of the Society for Risk Analysis·Leslie M ShorGary L Taghon
Nov 1, 1992·Applied and Environmental Microbiology·K Simek, T H Chrzanowski
Feb 1, 1997·Applied and Environmental Microbiology·K SimekR Psenner
Feb 1, 1997·Applied and Environmental Microbiology·J PernthalerR Psenner
Jan 5, 1995·Biotechnology and Bioengineering·J C Merchuk, J A Asenjo
Mar 20, 1997·Biotechnology and Bioengineering·C J CoenH W Blanch
Dec 9, 2008·Chemosphere·Menka Mittal, Karl J Rockne