Characterisation of the Endophytic and Rhizospheric Bacillus licheniformis Strains Isolated from Sweet Potato with Plant Growth-Promoting and Yield Enhancing Potential

Figure 11

In vitro antagonism tests on sterilised sweet potato slices. Left column: noninoculated control slices. Middle column: slices inoculated with fungal pathogens. Right column: SZMC 27715 pre-treated slices plus fungal pathogens. The blue plus or minus symbols located in the bottom right corner of the images signify the severity of symptoms: “–” for symptomless, “+” for slight symptoms, and “++” for severe symptoms.