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Fig. 1 | AMB Express

Fig. 1

From: Effect of four trace elements on Paenibacillus polymyxa Pp-7250 proliferation, activity and colonization in ginseng

Fig. 1

ad The effects of Cu2+, Fe2+, Mn2+ and Zn2+ on the proliferation of Pp-7250. Take Zn2+ as an example. When the concentration of Zn2+ was 50–100 mg/L, compared with the control group, the delayed period of Pp-7250 multiplication was shortened, and the logarithmic phase was advanced; When the concentration of Zn2+ was 100 mg/L, the promotion of Pp-7250 was the strongest, the delayed period was shortened by 12 h, and the logarithmic stage was about 24 h in advance; The appropriate concentration of Zn2+ had a certain promoting effect on Pp-7250. However, when the Zn2+ concentration was greater than 500 mg/L, there was a certain inhibitory effect on the proliferation of Pp-7250, as the concentration increasing, the inhibitory effect increased

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