Examples of trehalose

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The implications of the lack of trehalose in these desiccation-tolerant organisms will be considered later.
Bioprotectants such as glycerol and trehalose as well as organic solvents have been used in experiments with lyophilized protein powders.
In both worms only two other endogenous mono- or oligosaccharides were present; trehalose and glucose.
The authors concluded that trehalose allowed the observation of a density-of-states distribution at ambient temperatures, similar to that normally observed only at very low temperature.
No trehalose at all was observed in the analytical results and no other simple sugar was produced in detectable quantities during dehydration.
Undoubtedly there will be an element of contrast matching between the disaccharide trehalose and amylopectin, which explains the indistinct edge of amylopectin granules.
Even trehalose synthase genes were not found in the rotifer genomes.
This first observation of animal anhydrobiosis without trehalose thus challenges our present understanding and requires a re-thinking of existing models.
This ability may be aided by the production of trehalose, which can act as a cryoprotectant, but does not involve recrystallization inhibition.
At the same time trehalose leads to metabolic shutdown.
The interpretation given by the authors was that the trehalose glass trapped the protein in a harmonic potential up to high temperatures.
It is still not determined whether the importance of intracellular trehalose reported in vertebrate cells is applicable to cells, tissues and individuals of invertebrates in the anhydrobiotic state.
Holmstrom et al. (1995) reported some success as a result of transferring a yeast gene encoding trehalose synthase into transgenic tobacco.
Trehalose content in anhydrobiotic organisms ranges from 2 % in tardigrades to 40 % in yeast.
Trehalose has a high solubility, a low reactivity and a low tendency to crystallize.
Trehalose cannot easily enter cells and tissues because of its relatively large molecular size.

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