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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 8.

Figure 8

Thiol and heavy metal content in the xylem sap of Brassica napus.

(a) The cysteine content in xylem sap increased after 2 weeks of Cd exposure but

(b) glutathione (GSH) was the most abundant thiol at all times measured.

(c) Cadmium was present in the xylem in significant amounts after 1 day of Cd treatment, decreasing to a concentration of 4 µm after 2 weeks of Cd exposure.

(d) Iron content in the xylem sap significantly decreased after 1 day of cadmium exposure. Asterisks denote statistically significant differences from untreated plants. Values shown are n = 3–4 experiments; two to three samples were measured per experiment.