TABLE 1.
Arbuscular mycorrhizal colonization; MTI; and concentrations of As, P, Mg, N, and total proteins in leaves of Triticum aestivum in response to Rhizophagus intraradices inoculation (M, mycorrhizal; NM, non-mycorrhizal) and As addition to the soil.
| As level (mg As kg−1 soil) | AMF status | Mycorrhizal colonization (%) | MTI (%) | As (μg g–1 DW) | P (mg g–1 DW) | Mg (mg g–1 DW) | N (mg g–1 DW) | Total protein (mg g–1 FW) |
| 0 | NM | – | 0.48 ± 0.01e | 3.24 ± 0.08b | 5.46 ± 0.002d | 44.56 ± 0.98b | 112.54 ± 1.45b | |
| M | 56.00 ± 1.00c | – | 0.04 ± 0.01f | 5.77 ± 0.14a | 6.95 ± 0.003a | 52.63 ± 0.97a | 119.99 ± 2.56a | |
| 25 | NM | – | 59.82 ± 6.95c | 12.54 ± 1.36c | 2.15 ± 0.12d | 5.05 ± 0.004e | 38.46 ± 0.61d | 80.72 ± 1.06e |
| M | 61.66 ± 1.53a | 114.67 ± 10.35a | 7.12 ± 1.05d | 2.81 ± 0.07c | 6.70 ± 0.10b | 41.30 ± 0.91c | 92.78 ± 2.50c | |
| 50 | NM | – | 36.50 ± 4.95d | 24.35 ± 0.77a | 1.48 ± 0.09e | 4.37 ± 0.001f | 27.76 ± 1.15f | 67.72 ± 2.93f |
| M | 58.33 ± 0.58b | 84.49 ± 5.48b | 14.07 ± 0.11b | 2.78 ± 0.05c | 6.01 ± 0.004c | 34.53 ± 0.60e | 88.50 ± 1.96d | |
| Significance As | *** | * | *** | *** | *** | *** | *** | |
| AMF | – | *** | *** | *** | *** | *** | *** | |
| As × AMF | – | *** | * | *** | *** | *** | *** |
Values represent means of three biological replicates ± SD. Different letters within the column represent significant difference among the treatments at p ≤ 0.05, derived from Tukey HSD.
* and *** represent significance at p ≤ 0.05 and p ≤ 0.001, respectively, derived from two-way ANOVA.
As, arsenic; AMF, arbuscular mycorrhizal fungi; Mg, magnesium; MTI, metal tolerance index; N, nitrogen; P, phosphorus; HSD, honestly significant difference.