Fig. 6
Identification and plant growth-promoting properties of isolated endophytic bacteria from the control or WHSM-treated soybean. The neighbor-joining tree was generated according to the 16S rRNA gene sequences of 84 bacterial strains. The phylum and genus to which the strains belong have been colored and texted in the figure. The circles with a different color showed that the strain has one or more functions of indole acetic acid (IAA) production, inorganic phosphorus solubilization, organic phosphorus solubilization, mineral potassium solubilization, siderophores production, NH3 production, and nitrogen fixation potential. The different colors of the triangle represent separation from different compartments of the soybean. The different colors of the rightmost square represented which treatment the strains were isolated from