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. Author manuscript; available in PMC: 2010 Mar 16.
Published in final edited form as: Plant J. 2008 Jan 16;54(2):249–259. doi: 10.1111/j.1365-313X.2008.03410.x

Figure 5.

Figure 5

Heavy metal content in the phloem sap of Brassica napus. The levels of (a) cadmium, (b) iron, (c) zinc and (d) manganese were measured in the phloem sap from control and Cd exposed plants.

(a) Using the relationship 0.174 ± 0.09 mg protein ml−1, a Cd concentration of 15.5 µm for 1 week of Cd exposure and 20 µm for 2 weeks of exposure was calculated. Cadmium content in the phloem sap after 1 day if Cd exposure was 35 nmol Cd mg−1 protein (n = 2).

(b) Iron concentration dramatically decreased during Cd exposure (*, P < 0.01) with respect to plants not exposed to Cd.

(c, d) No significant differences were found in the zinc and manganese content. Values shown are n = 3–4 experiments; two or three samples were measured per experiment.