3.5. Acid invertase activity
Invertase activity was differently affected by Cr treatment in
floating and submerged leaves of S. minima (Fig. 3). Exposure to
2 and 10 mg L−1 Cr concentrations significantly reduced (p < 0.05)
invertase activity in floating leaves, while in submerged leaves
it was only affected by the last concentration. The highest value
of enzyme activity in Cr-treated floating leaves was observed at