Potted glowing plants (line NT001) and wild type (line NT000) plants of the same age in ambient light (a, b) and in the dark (c). The 4-week old plants on panel a are representative of 100 wild-type and 100 glowing plants grown from in-vitro in four separate experiments. d. Comparison of chlorophyll a, chlorophyll b and carotenoid content in leaves, leaf dimensions and plant height of 8-week old plants of the transgenic line NT001 and the wild type line NT000.The boxes extend from the lower to upper quartile values of the data, orange line represents the median. Whiskers represent a full data range. The exact sample sizes are denoted above each box plot, the statistics (U) and p-values of two-tailored Mann-Whitney U test are noted in the lower right part of each plot.