3.3. Soluble carbohydrates
Soluble sugars were affected by Cr treatment in both floating
and submerged leaves (Fig. 2). Results showed that the content of
sucrose and fructose at both 10 mg L−1 and 5 mg L−1 Cr concentrations
was higher in Cr-treated than in control leaves (Fig. 2A
and C). By contrast, the glucose content was highest in control
leaves (Fig. 2B). Although each sugar showed, in general, a similar
distribution pattern in both leaves, the highest values were