Table 2 Nutrient uptake (pmol cells−1 d−1) and ratios between N:P, N:Si and P:Si uptaken by cells grown in f/2 medium with aeration.

From: Role of nutrient concentrations and water movement on diatom’s productivity in culture

Growth rate

N

P

Si

N:P

N:Si

P:Si

P-RNA

P-storage

P-no storage

−0.70 d−1 to 0.00 d−1 (n = 7)

0.37 ± 0.03

0.008 ± 0.001

0.01 ± 0.002

48.16 ± 4.80

25.46 ± 2.82

0.53 ± 0.07

0.017 ± 0.007

0.044 ± 0.02

0.176 ± 0.08

0.04 d−1 to 0.30 d−1 (n = 12)

0.39 ± 0.12

0.01 ± 0.006

0.1 ± 0.01

27.67 ± 4.98

3.91 ± 0.92

0.14 ± 0.05

0.044 ± 0.01

0.12 ± 0.02

0.48 ± 0.09

0.40 d−1 to 1.40 d−1 (n = 22)

0.19 ± 0.06

0.04 ± 0.02

0.07 ± 0.03

5.10 ± 1.86

2.82 ± 1.02

0.55 ± 0.23

0.038 ± 0.03

0.174 ± 0.14

0.696 ± 0.46

  1. P-RNA (pg) is for P content allocation in RNA (using P = 0.091 g dry g RNA−1)12. P-storage (pg) is for P content allocation in reserve compounds (inorganic phosphate) and P-no storage (pg) is for P content allocation in other phosphorus-containing compounds. n is the number of data for each class of growth rate.
Back to article page