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Fig. 1 | BMC Ecology

Fig. 1

From: Experimental ListeriaTetrahymenaAmoeba food chain functioning depends on bacterial virulence traits

Fig. 1

Rates of change in amoebal population stimulated by introduction of bacteria. Lm: virulent L. monocytogenes; Li: saprophytic L. innocua. Bacteria were added to a starved A. proteus culture with multiplicity 1000:1 (bacteria:amoeba) and incubated for 24 h. Amoebas were counted with light microscope at different times points. Rates expressed percentage change per hour were calculated as described in “Methods” section. Positive rates mean an increase in the amoebal population while negative rates mean a decrease. The data represent mean values ± SD from six independent experiments. **p < 0.005

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