Figure 4.

Growth-promoting effect of salicylic acid (SA)-producing endophytic bacteria (EB) in Nicotiana. (a–c) Growth comparison of 3-week-old Nicotiana benthamiana plants in response to seed treatment with SA-producing EB or distilled water (Control). (d–f) Growth comparison of 8-week-old N. tabacum plants in response to seed treatment with SA-producing EB or water (Control). Data represent means ± standard deviations of four independent replications for each treatment. Means with different letters are significantly different at p < 0.05 by Duncan’s multiple range test.