Figure 4

Changes in enzyme activities in cucumber roots at 3 d after treatment.
The activities of hexokinase (HK), 6-phosphofructokinase (6-PFK), pyruvate kinase (PK), phosphoenolpyruvate carboxylase (PEPC), isocitrate dehydrogenase (IDH), malate dehydrogenase (MDH) and succinate dehydrogenase (SDH) were determined in root material collected from cucumber plants grown under normoxic conditions (Control), hypoxia treatment (Hypoxia) and hypoxia + 4 mM CaCl2 treatment (Hypoxia + Ca2+). Values are means ± SE of three independent experiments. Bars marked with dissimilar letters are significantly different from each other according to Duncan’s multiple range tests (P < 0.05).