Degradation of pyrene at low defined oxygen concentrations by a Mycobacterium sp.
In a fermentor, a Mycobacterium sp. was grown on pyrene at defined oxygen concentrations in a range from 11.4 to 227 microM. The maximal growth rate (mumax = 0.057 h-1) and the dissolved oxygen half-saturation constant (KDO = 5.9 microM) were calculated. At 3.4 microM, the growth rate (mu = 0.011 h-1) was only half of what was expected from the kinetic data. Apparently, this was due to limitation of an oxygenase of pyrene degradation.
Fritzsche
C
C
Lehrstuhl für Mikrobiologie, Universität Karlsruhe, Germany.
D001673:Biodegradation, Environmental; D003470:Culture Media; D007700:Kinetics; D009161:Mycobacterium / Q000378:metabolism*; D010100:Oxygen / Q000378:metabolism*; D010105:Oxygenases / Q000378:metabolism; D011721:Pyrenes / Q000378:metabolism*
D003470:Culture Media; D011721:Pyrenes; C030984:pyrene; D010105:Oxygenases; D010100:Oxygen