Figure 2 | Scientific Reports

Figure 2

From: Energy-efficient production of vaccine protein against porcine edema disease from transgenic lettuce (Lactuca sativa L.)

Figure 2

Effects of photosynthetic photon flux densities (PPFDs) on the fresh weight and Stx2eB concentration of 2 BU lettuce cultivated under a 16:8 h L:D photoperiod. (a) Fresh weight per plant. Different letters indicate significant differences between PPFD treatments at the p < 0.05 level according to a Tukey–Kramer test. Values in parentheses represent the number of plants. (b) Stx2eB concentration per 100-g fresh weight. White and black bars indicate 360 and 600 μmol m−2 s−1 PPFD, respectively. Asterisks indicate statistical differences using a Student’s t-test (*p < 0.05). Bars indicate the standard error of the mean. The values given in parentheses are the number of western blotting samples.

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