General characteristics of Bacillus velezensis GSBZ09. (A) Image of GSBZ09 colony morphology. Image of GSBZ09 cells using scanning electron microscopy (B) and transmission electron microscopy (C). (D) Phylogenetic tree of B. velezensis GSBZ09 among other Bacillus species. The phylogenetic tree was constructed based on six housekeeping genes (16S rRNA, gyrB, rpoD, atpD, rho, and pgk) according to the aligned gene sequences using the maximum likelihood method in MEGA 6.0. Bootstrap values (1000 replicates) are shown at the branch points. The scale bar indicates 0.05 nucleotide substitutions per nucleotide position. (E) Growth dynamics and pH change of B. velezensis GSBZ09. Error bars represents the means ± standard deviation of three replicate experiments.