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Fig. 5 | Environmental Microbiome

Fig. 5

From: Seasonality, shelf life and storage atmosphere are main drivers of the microbiome and E. coli O157:H7 colonization of post-harvest lettuce cultivated in a major production area in California

Fig. 5

EcO157 population dynamics on postharvest lettuce stored at 6 °C (left panel) and 24 °C (right panel). a and b Population sizes as Log10-transformed CFU/g cut lettuce for each replicate sample of cultivar DA and TT (226-g MAP bag) immediately after inoculation, and at mid- and endpoint of storage at 6 °C and 24 °C. Black lines and grey bars, means and SEM. c and d Forest plot of weighted mean differences (WMD) between cultivar TT and DA (TT minus DA) in the change in EcO157 population size [ΔLog10(CFU/g)] from immediately after inoculation (pre-storage) to mid- or endpoint of storage. Overall WMD (black diamonds and red values) based on nine sample types stored at 6 °C (left) and 24 °C (right) across five experiments including different field locations and seasons. Grey rectangles and bars, WMD and CI for each sample type. Sample names: C or E (conventional or experimental field); F or S (fall or spring harvest); 7 or 8 (2017 or 2018 harvest); m or e (mid- or endpoint of storage)

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Environmental Microbiome

ISSN: 2524-6372