Figure 1: Burkholderia xenovorans (Bx) is a poor food for D. discoideum. | Nature Communications

Figure 1: Burkholderia xenovorans (Bx) is a poor food for D. discoideum.

From: Social amoeba farmers carry defensive symbionts to protect and privatize their crops

Figure 1

In 100% Bx, non-farmers are unable to produce any spores, whereas spore production for farmers is greatly reduced compared with 100% Klebsiella pneumoniae (Kp) control. However, small amounts of Bx harm non-farmer clones but not farmer clones. Non-farmers produce significantly fewer spores in 5% Bx+95% Kp and 10% Bx+90% Kp compared with 100% Kp control, whereas farmers have minimal change in spore production under the same conditions (mixed model analysis of variance: farmer F1,8=0.95, P=0.3588, treatment F2,16=78.38, P<0.0001, farmer × treatment F2,16=28.59, P<0.0001, n=10); Significant differences found between farmers and non-farmers are indicated by different letters, which reflect results of a post hoc Tukey’s honestly significantly different (HSD) test (this analysis excluded the 100% Bx treatment that was not normally distributed and not directly relevant to the question of protecting a crop). Error bars equal s.e.m.

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