Table 1.

Cell abundances, growth rates, physiological states, and cellular elements (Cu, P, and Mo) (average ± SD, n = 3) in 72‐hr cultures of Phaeodactylum tricornutum at different levels of Cu stress

Dissolved Cu [μmol/L]	Free Cu2+ [nmol/L]	Abundances [105 cells/ml]	Growth rate [per day]	Fv/Fm	rETRmax	Total cellular Cu [10−18 mol/cell]	Surface‐adsorbed Cu [10−18 mol/cell]	Intracellular Cu [10−18 mol/cell]	Cellular P [10−15 mol/cell]	Cellular Mo [10−18 mol/cell]
0.00	0.0	3.2 ± 0.2	0.54 ± 0.01	0.55 ± 0.01	71 ± 1.1	4.2 ± 1.6	4.2	1.3 ± 1.0	122 ± 11	0.14 ± 0.09
0.25	0.4	3.1 ± 0.2	0.53 ± 0.01	0.55 ± 0.01	69 ± 3.6	5.6 ± 1.2	2.8	2.8 ± 2.4	95 ± 10	0.31 ± 0.13
0.50	0.8	5.9 ± 0.7	0.69 ± 0.02	0.52 ± 0.01	63 ± 1.8	9.9 ± 7.5	8.4	1.5 ± 0.5	53 ± 2	0.08 ± 0.03
1.0	1.8	6.0 ± 0.3	0.69 ± 0.01	0.51 ± 0.00	59 ± 1.0	14 ± 1.8	11.4	2.6 ± 0.2	54 ± 5	0.71 ± 0.21
2.0	3.7	5.6 ± 0.2	0.60 ± 0.01	0.49 ± 0.03	66 ± 1.3	25 ± 4.1	21	4.0 ± 2.4	86 ± 4	1.10 ± 0.33
4.0	7.6	5.1 ± 0.2	0.58 ± 0.01	0.51 ± 0.01	60 ± 3.6	32 ± 5.3	26.5	5.5 ± 1.0	93 ± 10	–
8.0	15	9.7 ± 2.6	0.74 ± 0.07	0.51 ± 0.00	60 ± 1.4	40 ± 4.4	32.4	7.6 ± 1.2	47 ± 0	0.62 ± 0.09
16	26	8.3 ± 1.2	0.70 ± 0.04	0.51 ± 0.00	60 ± 2.5	53 ± 11	40.2	12.8 ± 1.3	49 ± 2	0.19 ± 0.10