FIG 2.

Priming effects by volatiles from Microbacterium strain EC8 on the growth of Arabidopsis and lettuce seedlings. (A) Shoot dry biomass, (B) flower stem length, and (C) number of flowers of Arabidopsis plants (mean ± SE, n = 9); (D) shoot dry biomass of lettuce plants (mean ± SE, n = 4 to 5). ctrl, control plants exposed to agar medium only; EC8, seedlings exposed to volatiles from EC8. Statistically significant differences between volatile-exposed and control seedlings were determined with an independent samples t test.