. 2021 Jan 5;7(1):e05891. doi: 10.1016/j.heliyon.2020.e05891

Table 2.

Total Pi and Cr shoot and root concentrations (μg g⁻¹ of DW) and contents (μg plant⁻¹) of maize plants associated (M) or not (NM) to Rhizophagus irregularis MUCL 41833 in containers connected to a circulatory semi-hydroponic cultivation system receiving Hoagland low-P solution without Cr(VI) or supplemented with increasing (0.1, 1 and 10 mg L⁻¹) concentrations of Cr(VI). Measurements were done after 30 days of growth in the containers.

Cr(VI) (mg L⁻¹)	Mycorrhizal Treatment	Cr in shoot		Cr in root		Pi in shoot		Pi in root
Cr(VI) (mg L⁻¹)	Mycorrhizal Treatment	μg g⁻¹d.w.	μg ∗ shoot	μg g⁻¹d.w.	μg ∗ root	μg g⁻¹d.w.	μg ∗ shoot	μg g⁻¹d.w.	μg ∗ root
0	NM	0.5 ± 0.2^bc	4.2 ± 1.5^a	0.6 ± 0.2^d	1.0 ± 0.3^d	2255 ± 94^ab	18.4 ± 0.6^a	1008 ± 73^c	1.9 ± 0.2^bc
0	M	0.4 ± 0.2^c	3.1 ± 1.3^a	0.8 ± 0.2^d	1.4 ± 0.3^d	2411 ± 52^a	18.3 ± 1.7^a	1722 ± 119^ab	3.1 ± 0.3^a
0.1	NM	0.6 ± 0.2^bc	3.6 ± 1.3^a	12.1 ± 1.3^c	23.3 ± 2.5^c	2158 ± 92^abc	14.2 ± 1.1^b	982 ± 78^c	1.9 ± 0.3^bc
0.1	M	0.6 ± 0.2^bc	4.0 ± 1.5^a	10.3 ± 1.8^c	19.2 ± 3.7^c	2062 ± 92^bc	13.1 ± 0.9^b	1518 ± 129^b	2.8 ± 0.4^ab
1	NM	0.8 ± 0.2^bc	5.4 ± 1.5^a	122 ± 18^b	240 ± 43^b	1867 ± 43^c	12.8 ± 1.2^b	1682 ± 140^ab	3.2 ± 0.2^a
1	M	1.0 ± 0.2^ab	16.2 ± 7.6^a	133 ± 14^b	220 ± 23^b	2048 ± 40^bc	11.8 ± 0.7^b	2024 ± 54^a	3.4 ± 0.3^a
10	NM	4.2 ± 0.6^a	9.1 ± 1.6^a	793 ± 113^a	648 ± 65^a	1938 ± 57^bc	4.1 ± 0.3^c	1364 ± 44^bc	1.2 ± 0.1^c
10	M	4.0 ± 0.6^a	5.5 ± 0.9^a	819 ± 149^a	491 ± 123^ab	2046 ± 81^bc	2.8 ± 0.3^c	1573 ± 77^b	0.9 ± 0.2^c
AM fungus treatment		0.5540	0.8114	0.5448	0.5374	0.0954	0.1890	< 0.0001	0.0029
Cr treatment		< 0.0001	0.0073	< 0.0001	< 0.0001	< 0.0001	< 0.0001	< 0.0001	< 0.0001
AM fungus treatment ∗Cr treatment		0.2776	0.2473	0.4197	0.2008	0.2233	0.9341	0.0583	0.0144

Data are expressed as means ± SE (N = 6). Values with the same lower-case letters in a column do not differ significantly at P ≤ 0.05 (two-way ANOVA, Bonferroni post-test). Significant P values are highlighted in bold.