Leaf versus root nitrogen uptake by the surfgrass Phyllospadix torreyi

@article{Terrados1997LeafVR,
  title={Leaf versus root nitrogen uptake by the surfgrass Phyllospadix torreyi},
  author={J. Terrados and Susan L Williams},
  journal={Marine Ecology Progress Series},
  year={1997},
  volume={149},
  pages={267-277}
}
Phyllospadix torreyi S. Watson ('surfgrass') is one of very few seagrass species that grow on rocks. Thus, unlike most other seagrasses, nutrient uptake across leaves rather than across roots might be very important for nutrient acquisition. Ammonlum and nitrate+nitrite uptake by surfgrass leaves was measured under flowing water and modelled (Michaelis-Menten) as a functlon of external concentrations. Leaf NH,' uptake showed a Km of 17.4 PM and a V,,,,, of 125.1 pm01 N g dry wt-' h-' Km and V… Expand
Uptake and resource allocation of ammonium and nitrate in temperate seagrasses Posidonia and Amphibolis.
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