Ammonium and methylamine transport by the ectomycorrhizal fungus Paxillus involutus and ectomycorrhizas.

@article{Javelle1999AmmoniumAM,
  title={Ammonium and methylamine transport by the ectomycorrhizal fungus Paxillus involutus and ectomycorrhizas.},
  author={Javelle and Chalot and S{\"o}derstr{\"o}m and Botton},
  journal={FEMS microbiology ecology},
  year={1999},
  volume={30 4},
  pages={355-366}
}
Using [(14)C]methylamine as an analogue of ammonium, the kinetics and the energetics of NH(4)(+) transport were studied in the ectomycorrhizal fungus, Paxillus involutus (Batsch) Fr. The apparent half-saturation constant (K(m)) and the maximum uptake rate (V(max)) for the carrier-mediated transport derived from the Eadie-Hofstee transformation were 180 µM and 380 nmol (mg dry wt)(-1) min(-1,) respectively. Both pH dependence and inhibition by protonophores indicate that methylamine transport in… CONTINUE READING

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