Fig. 5

Overexpression of ZmGPDH1 increases the glycerol-3-phosphate and glycerol levels under salt and osmotic stresses. a and b The glycerol-3-phosphate and glycerol contents in 3-week-old WT, atgpdhc2, COM-1, COM-2, OE-1 and OE-2 seedlings irrigated with water (control), 400 mM mannitol and 200 mM NaCl every 3 days for 6 days. Asterisks indicated significant differences from the WT by Student′s t-test (*P < 0.05, ** P < 0.01)