Table 3.

The characterisation of the maize (Zea mays L.) root cell walls. All values were calculated per dry mass. Different letters denote statistically significant differences in the parameters between the treatments at p < 0.05 according to the Tukey test

	TC [%]	Proteins [%]	Klason lignin [%]	Ca2+ [μg/g]	Cd2+ [μg/g]
Control	78.2 ± 1.6a	11.9 ± 0.1b	10.2 ± 1.3b	2253.7 ± 2.3a	n.d.
IBA	77.5 ± 2.5a	14.6 ± 0.2a	11.9 ± 0.3ab	2241.5 ± 18.3a	n.d.
Cd	77.7 ± 3.6a	10.9 ± 0.2c	13.6 ± 0.2a	1507.7 ± 3.3b	2792.0 ± 21.8b
Cd + IBA	80.0 ± 2.9a	11.3 ± 0.2bc	11.0 ± 0.2b	2249.3 ± 2.3b	3112.5 ± 34.2a

n.d. not detected, TC total content of carbohydrates

Different lowercase letters (a–c) denote statistically significant differences in the parameters between the treatments at p < 0.05 according to the Tukey