Fig. 4.

Dry mass (A), the contents of free amino-N (B), free NH₄⁺-N (C) and soluble sugars (D) as determined at 35 DAG in rice plants (Piauí variety) without inoculation (white bar) and those inoculated with the following different dark septate fungal isolates: A101 (checkered bars), A103 (closed bars), A104 (grey bars) and A105 (striped bars). Different letters within a given plant tissue (root or sheath or leaf or shoot) indicate significant differences among the treatment at p < 0.05 (t-test (LSD)). The error bars are standard error (n = 4). The means of four composed repetitions (each repetition had four plants per pot). The shoot biomass is the sum of the sheathes and leaves.