Temperature Compensation in Methanosarcina barkeri by Modulation of Hydrogen and Acetate Affinity.

@article{Westermann1989TemperatureCI,
  title={Temperature Compensation in Methanosarcina barkeri by Modulation of Hydrogen and Acetate Affinity.},
  author={Peter Westermann and Birgitte Kiaer Ahring and Robert A. Mah},
  journal={Applied and environmental microbiology},
  year={1989},
  volume={55 5},
  pages={1262-6}
}
The affinity of Methanosarcina barkeri 227 for acetate and hydrogen at different incubation temperatures was investigated. Increasing the temperature from 20 to 37 degrees C resulted in a 4.5-fold increase in K(m) for acetate and a 4.8-fold increase for hydrogen. The corresponding increase in V(max) for acetate was 8.3-fold (5.4-fold for hydrogen). This response implied a decrease in the temperature coefficient (Q(10)) and hence a decrease in the temperature dependency as a function of… CONTINUE READING