Growth promotion of cucumber plants inoculated with the FO12 strain. To determine growth promotion, half of the 10-day-old plants were inoculated, and then Inoculated and Control plants cultivated for 7 additional days either under Fe deficiency (– Fe) or Fe 40 µM (+ Fe). After that time, roots and shoots were excised and weighed separately. a Shoot fresh weight. b Root fresh weight. c Comparison between Control and Inoculated plants of the -Fe treatment. C, Control (green); I, Inoculated (violet). Within each Fe treatment, *P
