Figures & data
Figure 1. Morphological identification of Qing 9A-1-1 (a) on medium and (b) microscope (400), Qing 9A-2 (c) on medium and (d) microscope (400), and Qing A-5-8 (e) on medium and (f) microscope (400).
Figure 2. Phylogenetic tree based on sequences (a) Qing A-5-8, (b) Qing 9A-2 and (c) Qing 9A-1-1.
Table 1. Effect of single and combine infection on three potato varieties
Figure 3. Pathogenicity effect of pathogens on potato in vivo. A was infection effect of pathogen on Qingshu 9, B was infection effect of pathogen on Qingshu 2, and C was infection effect of pathogen on Xiazhai 65. From left to right were infected by sterile water, Qing 9A-2, Qing 9A-1-1, Qing 9A-2 combine Qing 9A-1-1.
Table 2. Infection rate of single infection on three potato varieties
Table 3. Inhibitory activity of strain S61 and its ethyl acetate extract on pathogens
Figure 4. Inhibition of strain S61 (a) Qing 9A-2, (b) Qing 9A-1-1 and (c) Qing 9A-5-8 on three pathogenic bacteria in vitro, as well as confrontation result of Qing 9A-2 and S61 (d), Qing 9A-5-8 and S61 (e), Qing 9A-1-1 and S61 (f) on the medium.
Table 4. Control effect of spraying s61 suspension and its ethyl acetate extract
Figure 5. Electron microscopic observation of S61 on pathogens (a) Qing 9A-2, (b) Qing 9A-1-1 and (c) Qing A-5-8, as well as the in vivo effect of spraying S61 (d) and its ethyl acetate extract (e) on Qing 9A-2, and colonization of S61 on potato tubers (f).
Figure 6. Response of enzymatic activity after sprayed strain S61 and its extract: peroxidase (POD) after spraying S61 (a) and its ethyl acetate extract (b), oxidase (PPO) after spraying S61 (c) and ethyl acetate extract (d), superoxide dismutase (SOD) after spraying S61 (e) and ethyl acetate extract (f), catalase (CAT) after spraying S61 (g) and ethyl acetate extract (h).
