Nevertheless, our results suggest that there is an increase in secondary metabolites (i.e. phenolic compounds) and a decrease in sugars (i.e. sucrose and glucose) in the early stages of shoot differentiation.
Both Lady Claire and Verdi showed a decrease in reducing sugar concentration during storage, resulting in them having the lowest reducing sugar concentrations of all the varieties at the end of the storage period.
These observations are directly reflected by the metabolomic data, where a set of organic acids that are citric acid cycle intermediates were altered as a functional group, and there was a decrease in free sugar concentrations.
The difference between flotation densities for each population of MUC5AC is due to both a decrease in the sugar content of MUC5AC and probably also to differences in the polymeric state [ 48].
At low initial sugar levels, that declined during growth due to bacterial consumption, Monod was unable to measure the substrate levels directly, and relied on the assumption that bacteria grow with a constant yield – that is, a unit increase in biomass corresponds to a constant times a unit decrease in sugar concentration.
This diversion in metabolism gave rise to necrosis and increased concentrations of amino acids, in particular the amides glutamine and asparagine, in the leaves and a decrease in soluble sugars in the shoot.
Nitrate exposure also induced a decrease in reducing sugars in both organs, while only in the roots of the plants exposed for 54 h to 10 mM NO3- a drop of sucrose took place.
When the carbon source changed from glucose to xylose there was a significant decrease in sugar uptake rate.
Our results showed that the sugar contents of the wheat seedlings increased in response to salt stress; however, a dramatic decrease in sugar levels was found under alkali stress.
