Fig. 7

Relative composition of carotenoids in leaves of control and Tl-treated S. alba plants. Relative composition of trans-neoxanthin – (all-trans) (a); cis-neoxanthin – (9’13), (9’9), (9-cis) (b); β-carotene (c); trans- violaxanthin – (all-trans) (d); cis-violaxanthin – (15’-cis), (13-cis), (9-cis) (e); trans-lutein – (all-trans) (f); cis-lutein – (9-cis), (13’-cis) (g). Values are expressed as a percentage of all identified and quantified carotenoids and are medians from three to seven replicates and whiskers show the range of the data. Values denoted by the same letter did not differ significantly at p = 0.05. Description of samples abbreviation as given in the legend to Fig. 3