Figure 6From: Growth and stress response in Arabidopsis thaliana, Nicotiana benthamiana, Glycine max, Solanum tuberosum and Brassica napus cultivated under polychromatic LEDsGrowth of B. napus plants under different illumination sources. A) Stem length (n = 24). B) Fresh weight of whole 24 and 41 days old plants; C) chlorophyl content of the same plants (n = 15). D) Relative transcription of PR1 gene (n = 3). The PR1 transcription was normalized to the reference gene for actin. In all cases error bars represent SD. Asterisks indicate statistically significant differences compared to plants grown under fluorescent lights (**P < 0.01, two tailed Student’s t-test).Back to article page