Effects of growth rate, cell size, motion, and elemental stoichiometry on nutrient transport kinetics
Fig 7
Relationship between ammonium or nitrate concentration and growth rate for Emiliania or Heterosigma.
The response curves relating Tmax to nutrient status, and nutrient status to growth rate were as in S2 Fig. The grey curve indicates the relationship at the plasma-membrane surface; this relationship would also apply if diffusion limitation was zero (i.e., ignored). The solid red curve is the relationship with the bulk nutrient concentration. The dashed black curve is the rectangular hyperbolic type 2 (RHt2) fit through the data describing the red curves with unconstrained fitted values of Tmax and KG. Note the different x-axis ranges.