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Fig. 3 | Chemical and Biological Technologies in Agriculture

Fig. 3

From: Application of MALDI-TOF mass spectrometry and specific PCR for tracking of E. coli O157:H strain 431/97 in Batavia lettuce

Fig. 3

Viable counts of phyllosphere samples on SMAC agar at different incubation periods after inoculation with E. coli O157:H 431/97 (means and standard deviations of two biological and two technical replicates). Hatched bars: autochthonous microbiota detected in samples without disinfection; gray bars: autochthonous microbiota detected in samples after disinfection, striped bar: E. coli O157:H 431/97 in sample without disinfection, black bar: E. coli O157:H 431/97 in sample after disinfection; black line: quantification limit. N negative control, L low inoculation level, H high inoculation level

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