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. 2021 Jan 14;16(1):e0245172. doi: 10.1371/journal.pone.0245172

Fig 1. Determination of the detection limit of the qPCR assay.

Fig 1

Calibration curves generated using 10-fold dilutions of DNA standards for E. coli EDL933_2 (top) detecting the wzy (A) and stx1 (B) genes. The Cq values were plotted against the log-scale CFU per reaction target concentration (bottom). The R2 values and reaction efficiency (E) are also shown.