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Applied and Environmental Microbiology, September 2000, p. 4136-4138, Vol. 66, No. 9
Max-Planck-Institut für terrestrische
Mikrobiologie, Karl-von-Frisch Strasse, 35043 Marburg, Germany
Received 5 May 2000/Accepted 30 June 2000
When cells of a type II methanotrophic bacterium
(Methylocystis strain LR1) were starved of methane, both
the Km(app) and the
Vmax(app) for methane decreased. The specific
affinity (aos) remained nearly
constant. Therefore, the decreased Km(app) in
starved cells was probably not an adjustment to better utilize low-methane concentrations.
0099-2240/00/$04.00+0
Copyright © 2000, American Society for Microbiology. All rights reserved.
Starvation Alters the Apparent Half-Saturation
Constant for Methane in the Type II Methanotroph
Methylocystis Strain LR1
*
Corresponding author. Mailing address:
Max-Planck-Institut für terrestrische Mikrobiologie,
Karl-von-Frisch Strasse, 35043 Marburg, Germany. Phone: (49)
6421-178-733. Fax: (49) 6421-178-809. E-mail:
dunfield{at}mailer.uni-marburg.de.
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