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Table 2 Comparative ionomics of soil-grown and hydroponically-grown plants

From: Protocol: optimising hydroponic growth systems for nutritional and physiological analysis of Arabidopsis thaliana and other plants

Element Soil-grown Hydroponics Ratio
Na23 1,608 ± 219 1,808 ± 120 1.12
Mg25 9,402 ± 845 9,876 ± 492 1.05
P31 8,449 ± 602 8,225 ± 204 0.97
K39 34,214 ± 1874 37,747 ± 1542 1.11
Ca43 44,314 ± 3005 38,821 ± 1603 0.86
Micronutrients
Cr52 0 < 4 n.d.
Mn55 64 ± 35 116 ± 42 1.82
Fe56 85 ± 36 64 ± 20 0.75
Co59 3 ± 0.6 < 6 n.d.
Ni60 1 ± 0.2 < 7 n.d.
Cu65 1 ± 0.5 1.3 ± 0.4 1.10
Zn66 65 ± 28 360 ± 108 5.56
Se77 2 ± 0.4 < 60 n.d.
Cd111 3 ± 1.1 < 2 n.d.
  1. Data presented as dry weight normalised shoot ionomics data obtained by inductively coupled plasma optical emission spectroscopy (ICP-OES) as per [19, 20] on 5 week old Col-0 shoots grown in soil (the PiiMS database: soil-grown plants fed ½-strength MS media; n=125 plants) and our hydroponics system (n=12 plants). Ratio compares ionome of hydroponics plants to soil-grown plants showing lines are similar in nutrient content for most elements, excluding Zinc, in the shoot. Detection limit shown for Cr, Co, Ni, Se and Cd, n.d.: not determined as one or both readings were given as a detection limit (note in all these cases the ranges overlap).