Table 3

Diversity statistics for bacterial communities associated with leafy salad vegetables as determined from pyrosequencing
Diversity statistics Baby spinach Romaine lettuce Red leaf lettuce Iceberg lettuce Green leaf lettuce
C Cs O Os C Cs O Os C Cs O Os C Cs O Os C Cs O Os
Number of OTUs 22 34 57 31 46 42 17 17 71 40 92 73 54 48 36 48 62 41 52 64
Total sequence reads obtained 5356 2142 2333 2610 2347 1769 2716 2702 3073 2113 2155 1640 1507 2633 2808 2740 2371 2423 2512 2365

Samples are baby spinach, romaine lettuce, red leaf lettuce, iceberg lettuce, and green leaf lettuce in conventional (C) and organic (O) varieties. Each was also subject to surface sterilization (designated by an s) to determine just the endophytic community. Values are derived from a standardized 1,507 OTU sequences per sample.

Jackson et al.

Jackson et al. BMC Microbiology 2013 13:274   doi:10.1186/1471-2180-13-274

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