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Table 3 Cellular characteristics of P. tricornutum reported in (I) Frada et al. [22] (300 µmol photons m−2 s−1) and (II) Wagner et al. [46] (1000 µmol photons m−2 s−1)

From: Effect of ammonium and high light intensity on the accumulation of lipids in Nannochloropsis oceanica (CCAP 849/10) and Phaeodactylum tricornutum (CCAP 1055/1)

 

(I)

(II)

N+

N−

A

A+W

N+

N−

Cell abundance (×106 cells mL−1)

2.3

0.8

3

0.8

n.d

n.d

µmax (day−1)

0.97 (± 0.10)

0.21 (± 0.04)

0.87 (± 0.05)

1.02 (± 0.03)

0.35

0.18

Chl a (×10−2 pg cell−1)

20.82 (± 1.84)

4.08 (± 0.30)

45.92 (± 6.9)

23.21 (± 10.5)

n.d

n.d

Fa (pg cell−1)

2.39 (± 0.10)

4.21 (± 0.33)

4.33 (± 0.60)

3.35 (± 0.17)

n.d

n.d

Fa productivity (mg L−1 day−1)

1.83

1.12

4.33

3.13

n.d

n.d

C/N

7.11

14.64

6.62

6.90

n.d

n.d

Fv/Fm

0.61 (± 0.10)

0.26 (± 0.04)

0.58 (± 0.10)

0.58 (± 0.06)

n.d

n.d

  1. Maximum growth rate (µmax), cell abundance, chlorophyll a (chl a), total fatty acids (Fa), total fatty acids productivity (Fa productivity), carbon to nitrogen ratio (C/N), and photosynthetic maximum efficiency of PSII (Fv/Fm) are compared for P. tricornutum in the four conditions (nitrate (N+), nitrogen free (N−), ammonium (A) and ammonium with tungstate (A+W) conditions), as reported in [22] and [46]. Mean (± standard error) values are given. n.d., means no data available