FIGURE 4.

Biofilm formation and maize root colonization of B. aryabhattai AB211. (A) SEM micrograph of AB211 strain. (B) SEM micrograph of 96 h old static biofilm formed by AB211 strain. (C) SEM micrograph of control maize root (D) SEM micrograph of maize roots colonized by AB211 strain. (E) In vitro static biofilm formation by AB211 strain for 48, 72, and 96 h of incubation in M9 medium. The graph shows the correlation of the measured crystal violet (CV) absorbance of attached cells (OD570 nm) and the growth of the planktonic cells (OD600 nm) to emphasize some cells in a sessile lifestyle at the tested condition. Each point and the standard deviation is the mean of three independent samples per condition.