Fig. 4
Overexpression of ZmGPDH1 enhances the salt- and drought-tolerance in transgenic Arabidopsis. a Images of 7-day-old WT, atgpdhc2, complementation (COM-1, COM-2) and overexpression (OE-1, OE-2) plants grown on either half-strength MS plates (control), plates with 300 mM mannitol or 150 mM NaCl for 7 days. Bars = 100 mm. b and c The primary root length and fresh weight of the six lines after 7 days of treatments. Images of 3-week-old plants irrigated with water (control), 200 mM NaCl (d) or 400 mM mannitol (e) every 3 days for 9 days. Bars = 200 mm. The total chlorophyll contents and chlorophyll fluorescence (Fv/Fm) of 3-week-old plants irrigated with water (control), 200 mM NaCl (f) or 400 mM mannitol (g) over 9 days. Asterisks indicated significant differences (*P < 0.05, ** P < 0.01) from the WT, as determined by Student′s t-test