Physiological regulation of plant-atmosphere ammonia exchange

  title={Physiological regulation of plant-atmosphere ammonia exchange},
  author={Jan Kofod Schjoerring and S\oren Husted and Gisela M{\"a}ck and Kent H\oier Nielsen and J\orgen Finnemann and Marie Mattsson},
  journal={Plant and Soil},
Plants have a compensation point for NH3 which ranges from 0.1 to 20 nmol mol-1, and may be several-fold higher or lower than naturally occurring atmospheric NH3 concentrations. This implies that NH3 fluxes over vegetated surfaces are bi-directional and that ammonia exchange with the atmosphere in many cases contributes significantly to the nitrogen economy of vegetation. Physiological regulation of plant–atmosphere NH3 fluxes is mediated via processes involved in nitrogen uptake, transport and… CONTINUE READING