Free galactose does not accumulate during germination, but other reducing sugars, including fructose, glucose and maltose do accumulate.
That sucrose and fructose had similar effects implies that the low glycemic index of fructose was irrelevant.
The sugars in cacao endosperm were mainly reducing sugars: glucose and fructose.
Further studies are needed to determine whether the positive effect of fructose supplementation in medium correlates with in vivo embryo development or not.
Neither glucose nor fructose were detected in seeds from any of the 28 treatment combinations (data not presented).
The percentage of the original labelling remaining in the embryos at the end of the chase is similar for glucose and fructose (around 14%).
Similarly, at the intraspecific level, food-fruits had significantly more fructose and glucose than non-food fruits, but no difference was found for sucrose.
Species consumed contained a relatively greater amount of monosaccharides: 45% + 17.5% of total sugars was glucose, 47% + 19.3% fructose, and only 7.7% + 12.4% was sucrose.
